WO2009142222A1 - 新規含硫黄有機珪素化合物の製造方法 - Google Patents
新規含硫黄有機珪素化合物の製造方法 Download PDFInfo
- Publication number
- WO2009142222A1 WO2009142222A1 PCT/JP2009/059240 JP2009059240W WO2009142222A1 WO 2009142222 A1 WO2009142222 A1 WO 2009142222A1 JP 2009059240 W JP2009059240 W JP 2009059240W WO 2009142222 A1 WO2009142222 A1 WO 2009142222A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sulfur
- organosilicon compound
- alkali
- containing organosilicon
- hydrosulfide
- Prior art date
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 143
- 239000011593 sulfur Substances 0.000 title claims abstract description 140
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 125
- 150000003961 organosilicon compounds Chemical class 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 239000003513 alkali Substances 0.000 claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000011541 reaction mixture Substances 0.000 claims abstract description 73
- RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 claims abstract description 48
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims abstract description 37
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000002798 polar solvent Substances 0.000 claims abstract description 20
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 12
- 150000002430 hydrocarbons Chemical group 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 125000005843 halogen group Chemical group 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 78
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 57
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 33
- 239000002904 solvent Substances 0.000 claims description 30
- 230000018044 dehydration Effects 0.000 claims description 27
- 238000006297 dehydration reaction Methods 0.000 claims description 27
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 26
- 208000005156 Dehydration Diseases 0.000 claims description 25
- 239000011261 inert gas Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical group [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 claims description 11
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 150000001298 alcohols Chemical class 0.000 claims description 7
- 150000002576 ketones Chemical class 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 150000002170 ethers Chemical class 0.000 claims description 6
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 claims description 6
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical group [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 5
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 claims description 4
- ZOCLAPYLSUCOGI-UHFFFAOYSA-M potassium hydrosulfide Chemical compound [SH-].[K+] ZOCLAPYLSUCOGI-UHFFFAOYSA-M 0.000 claims description 4
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 claims description 4
- LEEANUDEDHYDTG-UHFFFAOYSA-N 1,2-dimethoxypropane Chemical compound COCC(C)OC LEEANUDEDHYDTG-UHFFFAOYSA-N 0.000 claims description 3
- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 claims description 3
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- DHXVGJBLRPWPCS-UHFFFAOYSA-N Tetrahydropyran Chemical compound C1CCOCC1 DHXVGJBLRPWPCS-UHFFFAOYSA-N 0.000 claims description 3
- 150000003983 crown ethers Chemical class 0.000 claims description 3
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 3
- -1 sulfur organosilicon compound Chemical class 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 67
- 239000000203 mixture Substances 0.000 abstract description 18
- 150000008117 polysulfides Polymers 0.000 abstract description 17
- 150000003377 silicon compounds Chemical class 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 31
- 235000011121 sodium hydroxide Nutrition 0.000 description 25
- 239000003921 oil Substances 0.000 description 15
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- 239000002808 molecular sieve Substances 0.000 description 11
- 239000002994 raw material Substances 0.000 description 11
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000010533 azeotropic distillation Methods 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- 229920001021 polysulfide Polymers 0.000 description 5
- 239000005077 polysulfide Substances 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000004904 shortening Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000006418 Brown reaction Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000012456 homogeneous solution Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- KSCAZPYHLGGNPZ-UHFFFAOYSA-N 3-chloropropyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)CCCCl KSCAZPYHLGGNPZ-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000000000 cycloalkoxy group Chemical group 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- TWKKUWBBCHHMLT-UHFFFAOYSA-N disodium;sulfide;trihydrate Chemical compound O.O.O.[Na+].[Na+].[S-2] TWKKUWBBCHHMLT-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003444 phase transfer catalyst Substances 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/1892—Preparation; Treatments not provided for in C07F7/20 by reactions not provided for in C07F7/1876 - C07F7/1888
Definitions
- the present invention relates to a novel method for producing a sulfur-containing organosilicon compound useful as a rubber compounding agent.
- a sulfur-containing organosilicon compound is a substance that binds a synthetic rubber or natural rubber having an unsaturated bond to a white filler such as silica, clay or talc, or a filler such as surface-modified carbon black, which is blended in the rubber. is there.
- Sulfur-containing organosilicon compounds are industrially useful compounds that have been known for a long time, and many methods for their production have been known.
- a halogenoorganosilane represented by the following general formula [III] anhydrous sodium sulfide and sulfur are reacted in a solvent at 70 to 80 ° C. for several hours, and represented by the following general formula [IV].
- a method for obtaining a sulfur-containing organosilicon compound is known (see Patent Document 1).
- R 1 is a lower alkyl group, lower aralkyl group, lower cycloalkyl group, lower aryl group, lower alkoxy group, lower cycloalkoxy group, aryloxy group, etc.
- R 2 is a lower alkylene group
- X is a halogen atom.
- M is an integer from 2 to 6)
- the object of the present invention is to provide a method for obtaining a high-purity sulfur-containing organosilicon compound having a polysulfide structure by an inexpensive and simple method in view of the above-mentioned problems of the prior art.
- the first invention is obtained in this first reaction by using an inexpensive alkali hydroxide in an inert gas atmosphere in the presence of water and reacting the mixture with alkali hydrosulfide and sulfur uniformly.
- the reaction mixture was dehydrated and then reacted with a halogenoalkoxysilane represented by the following general formula [I] in a polar solvent to form a sulfur-containing organic compound represented by the following general formula [II].
- the present invention relates to a method for obtaining a silicon compound.
- alkali hydroxide, alkali hydrosulfide and sulfur are mixed and reacted in an inert gas atmosphere in the presence of water and a solvent azeotropic with water.
- the reaction mixture obtained in one reaction is dehydrated by azeotropic distillation, and then subjected to a second reaction in which the reaction mixture is reacted with a halogenoalkoxysilane represented by the following general formula [I] in a polar solvent. II] is obtained.
- R 1 is a monovalent hydrocarbon group having 1 to 16 carbon atoms
- R 2 is a divalent hydrocarbon group having 1 to 9 carbon atoms
- X is a halogen atom
- n is an integer of 1 to 3
- the first invention is a method in which an alkali hydrosulfide, sulfur and alkali hydroxide are mixed and reacted at 50 to 150 ° C. in an inert gas atmosphere in the presence of water, and the resulting reaction mixture is dehydrated.
- a sulfur-containing organosilicon compound represented by the above general formula [II] by reacting with a halogenoalkoxysilane represented by the above general formula [I] in a polar solvent. It is a manufacturing method.
- sulfur and alkali hydroxide are mixed and reacted at 50 to 150 ° C. in an inert gas atmosphere in the presence of water, and the resulting reaction mixture is dehydrated and then subjected to the following in a polar solvent.
- the third invention was obtained by mixing and reacting alkali hydroxide, alkali hydrosulfide and sulfur, or alkali sulfide and sulfur in an inert gas atmosphere in the presence of water and a solvent azeotroped with water.
- the reaction mixture is dehydrated by azeotropic distillation and then reacted with a halogenoalkoxysilane represented by the following general formula [I] in a polar solvent to obtain a sulfur-containing organosilicon compound represented by the following general formula [II].
- alkali hydrosulfide having high hygroscopicity is used in the first reaction stage in which alkali hydrosulfide, sulfur and alkali hydroxide are uniformly mixed and reacted.
- alkali hydrosulfide, sulfur and alkali hydroxide are uniformly mixed and reacted.
- alkali hydroxide, alkali hydrosulfide and sulfur, or alkali hydrosulfide or alkali sulfide having high hygroscopicity is used in the first reaction stage in which alkali sulfide and sulfur are mixed and reacted. In order to carry out the reaction, it is substantially unnecessary to consider the water absorption of alkali hydrosulfide or alkali sulfide.
- the necessary amount of these raw material compounds is adjusted to match the sulfur chain of the target sulfur-containing organosilicon compound at the beginning of the first reaction stage in which sulfur and alkali hydroxide are uniformly mixed and reacted. Therefore, the step of adding sulfur is unnecessary and the process can be simplified.
- the method of the third invention meets the sulfur chain of the target sulfur-containing organosilicon compound at the beginning of the first reaction stage in which alkali hydroxide, alkali hydrosulfide and sulfur, or alkali sulfide and sulfur are mixed and reacted.
- the necessary amounts of these raw material compounds are charged in a lump, preferably heated to 50 to 130 ° C., preferably subjected to the first reaction for 15 to 60 minutes, and then dehydrated by azeotrope to obtain a polar solvent.
- the following is a method for producing a sulfur-containing organosilicon compound represented by the general formula [II] by reacting a halogenoalkoxysilane of the general formula [I], wherein alkali hydrosulfide is a precursor of alkali sulfide, As the alkali source, an alkali hydroxide represented by inexpensive sodium hydroxide can be used. Further, since sulfur is not added after obtaining anhydrous sodium sulfide as in the prior art Japanese Patent Laid-Open No. 7-228588 and the like, there is no need to further add sulfur, and the reaction vessel does not need to be opened and closed. Manufacturing time and man-hours can be reduced, and the process can be simplified. Furthermore, since the first reaction is under a solvent, it proceeds easily, and the first reaction step is substantially completed in a step of removing water by azeotropic distillation.
- the reaction mixture of the first stage is subjected to dehydration treatment. Therefore, the dehydrated reaction mixture can be treated without isolating and purifying the reaction product from the reaction mixture of the first stage. It can be subjected to the next second reaction stage. Therefore, it is not necessary to provide an isolation / purification step for the reaction product from the reaction mixture in the first step, and the process can be simplified in this respect as well.
- the sulfur-containing organosilicon compound represented by the general formula [II] can be obtained inexpensively and efficiently.
- alkali hydrosulfide is used as a raw material.
- the reaction mixture obtained by reacting sulfur and alkali hydroxide is represented by the general formula [I] as compared with the reaction mixture obtained by reacting sulfur and alkali hydroxide as raw materials. This is preferable in order to efficiently react with the halogenoalkoxysilane.
- the first stage reaction to obtain a reaction mixture by uniformly mixing alkali hydrosulfide, sulfur and alkali hydroxide will be described.
- the alkali hydrosulfide used may be sodium hydrosulfide or potassium hydrosulfide.
- the alkali hydrosulfide may be a hydrated hydrous alkali hydrosulfide or an anhydrous alkali hydrosulfide.
- the first stage reaction since the first stage reaction is performed in the presence of water, it is not necessary to make the hydrous alkali hydrosulfide anhydrous, and it is preferable to use the hydrous alkali hydrosulfide as it is.
- the sulfur used in the first stage may be in any form such as powder, flakes, and granules, but a powder with a fine particle diameter is preferable for shortening the reaction time.
- alkali hydroxide used in the first stage examples include sodium hydroxide and potassium hydroxide. Since water is required for the first stage reaction, it is preferable to use an alkali hydroxide in the form of an aqueous solution, for example, a 48% sodium hydroxide aqueous solution.
- the reaction temperature is preferably 50 ° C. to 150 ° C., 80 ° C. to 120 ° C. is more preferable.
- the first stage reaction should be carried out in an inert gas atmosphere such as a sufficiently dried nitrogen gas or argon gas atmosphere. preferable.
- the dehydration means of the reaction mixture in the first stage is performed to prevent hydrolysis of the halogenoalkoxysilane represented by the general formula [I] and the sulfur-containing organosilicon compound represented by the general formula [II].
- a preferable dehydration treatment is heating at a reduced pressure or normal pressure, or water removal by azeotropy of an azeotropic solvent and water. Heating is preferably performed in an inert gas atmosphere.
- the heating means may be heating using an electric heater or an oil bath, high-frequency heating, or the like.
- the reaction mixture By dehydrating the first stage reaction mixture, the reaction mixture can be subjected to the next second reaction stage without isolating and purifying the reaction product from the first stage reaction mixture. Therefore, it is not necessary to provide an isolation / purification step for the reaction product from the reaction mixture in the first step.
- the temperature is preferably 80 ° C. to 200 ° C., more preferably 120 ° C. to 170 ° C.
- the degree of vacuum is preferably 80 torr or less, and more preferably 50 torr or less.
- the first stage reaction mixture is pulverized, for example, under hot air at a temperature of 120 ° C. to 400 ° C., or powder is obtained by dehydration using a drum dryer. Is preferable.
- the heat treatment temperature is preferably 150 ° C. to 300 ° C.
- azeotropic solvent used is not particularly limited as long as it is azeotropic with water, and an azeotropic solvent such as xylene, toluene, benzene, hexane, pentane, octane, nonane, decane, and undecane is added to the reaction mixture.
- Water is azeotropically dehydrated.
- Particularly preferred azeotropic solvents are xylene, toluene, octane, nonane and the like having a boiling point of 100 ° C. to 150 ° C.
- the reaction mixture When dehydration is performed by high-frequency heating, the reaction mixture may be irradiated with high frequency until the water is exhausted. Usually, high frequency is irradiated continuously or intermittently in an inert gas atmosphere for 5 to 30 minutes. The reaction mixture can be dehydrated.
- the mixture containing alkali polysulfide can adhere to the container, but the deposit can be easily made into a slurry by the polar solvent used in the second reaction step described later, so there is no problem in the process. .
- the dehydration-treated first stage reaction mixture is reacted with a halogenoalkoxysilane represented by the general formula [I] in a polar solvent, to thereby form a sulfur-containing organosilicon represented by the general formula [II].
- a halogenoalkoxysilane represented by the general formula [I] in a polar solvent, to thereby form a sulfur-containing organosilicon represented by the general formula [II].
- the second reaction step to obtain the compound is described.
- R 1 may be the same or different from each other, and is not particularly limited as long as it is a linear or branched monovalent hydrocarbon group having 1 to 16 carbon atoms. In particular, a methyl group, an ethyl group, or a combination thereof is preferable.
- R 2 may be a linear or branched divalent hydrocarbon group having 1 to 9 carbon atoms, and in particular, —CH 2 —, —CH 2 CH 2 —, —CH 2 CH 2 CH 2 — , —CH 2 CH 2 —Ph—CH 2 — (ph is a phenylene group) and the like are preferable.
- X is a halogen atom, and examples thereof include chlorine, bromine and iodine.
- Examples of the polar solvent include alcohols, ethers, ketones, and combinations thereof, and alcohols are preferable.
- alcohols examples include methanol, ethanol and propanol, with ethanol being preferred.
- ethers include tetrahydrofuran, 2-methyltetrahydrofuran, tetrahydropyran, crown ether, dimethoxyethane, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, diethylene glycol dibutyl ether, and propylene glycol dimethyl ether.
- ketones include acetone and methyl ethyl ketone.
- the reaction temperature in the second reaction stage is preferably 40 ° C to 100 ° C.
- the second reaction stage is sufficiently dried. It is preferable to carry out in an inert gas atmosphere such as nitrogen gas or argon gas atmosphere.
- the sulfur used in the first stage may be in any form such as powder, flakes, and granules, but a powder with a fine particle diameter is preferable for shortening the reaction time.
- alkali hydroxide used in the first stage examples include sodium hydroxide and potassium hydroxide. Since water is required for the first stage reaction, it is preferable to use an alkali hydroxide in the form of an aqueous solution, for example, a 48% sodium hydroxide aqueous solution.
- the reaction temperature is preferably 50 ° C. to 150 ° C., more preferably 80 ° C. to 120 ° C. .
- the reaction temperature is preferably 50 ° C. to 150 ° C., more preferably 80 ° C. to 120 ° C. .
- the first-stage reaction is preferably performed in an inert gas atmosphere such as a sufficiently dried nitrogen gas or argon gas atmosphere.
- the dehydration treatment of the first stage reaction mixture in the second invention may be the same as the above-described dehydration treatment of the first stage reaction mixture in the first invention, and thus description thereof is omitted.
- the dehydrated first stage reaction mixture is reacted with a halogenoalkoxysilane represented by the general formula [I] in a polar solvent, and represented by the general formula [II]. Since the second reaction stage for obtaining the sulfur-containing organosilicon compound may be the same as the second reaction stage of the first invention described above, description thereof is omitted.
- the reaction mixture is obtained by mixing alkali hydrosulfide, sulfur and alkali hydroxide, or alkali sulfide and sulfur in an inert gas atmosphere in the presence of water and a solvent azeotropic with water.
- the stage reaction is described.
- the reaction mixture obtained in the first stage reaction is mixed with alkali hydrosulfide, sulfur, alkali hydroxide, or alkali sulfide, sulfur in an inert gas atmosphere in the presence of water and a solvent azeotropic with water. Is obtained by mixing.
- the alkali hydrosulfide used may be sodium hydrosulfide or potassium hydrosulfide.
- the alkali hydrosulfide may be a hydrated hydrous alkali hydrosulfide or an anhydrous alkali hydrosulfide. Since it is carried out in the presence of water, it is not necessary to make the hydrous alkali hydrosulfide anhydrous, and it is preferable to use the hydrous alkali hydrosulfide as it is.
- the sulfur to be used may be in any form such as powder, flakes and granules, but a powder with a fine particle diameter is preferable for shortening the reaction time.
- alkali hydroxide examples include sodium hydroxide and potassium hydroxide. Since water is required for the first stage reaction, it is most inexpensive and preferable to use alkali hydroxide in the form of an aqueous solution, for example, a 48% sodium hydroxide aqueous solution.
- the alkali sulfide used may be sodium sulfide or potassium sulfide.
- the alkali sulfide may be a hydrous alkali sulfide which is a hydrate or an anhydrous alkali sulfide. Since it is carried out in the presence of water, it is not necessary to make the hydrous alkali sulfide anhydrous, and it is preferable to use the hydrous alkali sulfide as it is.
- the sulfur to be used may be in any form such as powder, flakes and granules, but a powder with a fine particle diameter is preferable for shortening the reaction time.
- polar solvents such as alcohols, ethers, and ketones are preferable.
- alcohols examples include methanol, ethanol and propanol, with ethanol being preferred.
- ethers include tetrahydrofuran, 2-methyltetrahydrofuran, tetrahydropyran, crown ether, dimethoxyethane, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, diethylene glycol dibutyl ether, and propylene glycol dimethyl ether.
- ketones include acetone and methyl ethyl ketone.
- the reaction mixture is dissolved in water and water azeotropic solvent while sulfur reacts with alkali hydrosulfide and alkali hydroxide or alkali sulfide dissolved in water and water azeotropic solvent. Therefore, a more uniform mixture is produced by using these solvents.
- the first stage reaction is performed under an inert gas atmosphere such as a sufficiently dried nitrogen gas or argon gas atmosphere. It is preferred to do so.
- the first stage reaction temperature is preferably from room temperature to the azeotropic temperature at which water and the above-mentioned solvent azeotrope.
- the reaction time of the first stage may be the time when the flaky substance such as alkali hydrosulfide, sulfur or alkali sulfide used becomes a slurry, and depending on the reaction scale, it may usually be 15 to 60 minutes.
- the conditions for the azeotropic dehydration treatment are conditions of temperature and pressure at which water and the solvent azeotrope.
- the solvent contained in the distillate obtained by azeotropic distillation of water and solvent can be recovered and reused.
- a solvent that separates the solvent and water as the water layer and the oil layer it can be separated and used by circulating the solvent. It can be purified by use with a solvent and circulated for use.
- the mixture containing alkali polysulfide can adhere to the container, but the deposit can be easily made into a slurry by the polar solvent used in the second reaction step described later, so there is no problem in the process. .
- the dehydration-treated first stage reaction mixture is reacted with a halogenoalkoxysilane represented by the general formula [I] in a polar solvent, and represented by the general formula [II]. Since the second reaction stage for obtaining the sulfur-containing organosilicon compound may be the same as the second reaction stage of the first invention described above, description thereof is omitted.
- Examples 1 to 4 correspond to the first invention
- Examples 5 to 7 correspond to the second invention
- Examples 8 to 9 correspond to the third invention.
- Example 1 A 200 ml three-necked flask was charged with 3.71 g of hydrous sodium hydrosulfide having a purity of 72.3%, 3.94 g of 48% aqueous sodium hydroxide, and 2.3 g of sulfur, and an oil bath at 140 ° C. under a nitrogen stream. These were uniformly mixed while being heated at. This mixture became a dark brown solution in about 15 minutes. Thereafter, stirring was performed for 1 hour. The reaction mixture was dehydrated by heating at a temperature of 150 ° C. and a pressure of 3 Torr for 3 hours. Thus, a reddish brown reaction mixture containing anhydrous sodium polysulfide was obtained.
- Example 2 A 200 ml three-necked flask was charged with 3.21 g of hydrous sodium hydrosulfide having a purity of 72.3%, 3.46 g of 48% aqueous sodium hydroxide and 3.83 g of sulfur, and an oil bath at 140 ° C. under a nitrogen stream. These were uniformly mixed while being heated at. This mixture became a dark brown solution in about 15 minutes. Thereafter, stirring was performed for 1 hour. The reaction mixture was dehydrated by heating at a temperature of 150 ° C. and a pressure of 3 Torr for 3 hours. An orange reaction mixture containing anhydrous sodium polysulfide was thus obtained.
- Example 3 A 200 ml three-necked flask was charged with 7.76 g of hydrous sodium hydrosulfide having a purity of 72.3%, 8.23 g of 48% aqueous sodium hydroxide, and 9.6 g of sulfur, and an oil bath at 140 ° C. under a nitrogen stream. These were uniformly mixed while being heated at. This mixture became a dark brown solution in about 15 minutes. Thereafter, stirring was performed for 30 minutes. To this reaction mixture, 52 g of toluene dehydrated with molecular sieves was added, toluene and water were azeotroped, and toluene was distilled off together with water. This azeotropic operation was repeated three times. Thus, a product containing anhydrous sodium polysulfide was obtained.
- Example 4 A 200 ml three-necked flask was charged with 3.66 g of hydrous sodium hydrosulfide having a purity of 72.3%, 3.94 g of a 48% aqueous sodium hydroxide solution and 2.3 g of sulfur, and an oil bath at 140 ° C. under a nitrogen stream. These were uniformly mixed while being heated at. This mixture became a dark brown solution in about 15 minutes. Thereafter, stirring was performed for 30 minutes. When this reaction mixture was irradiated with a high frequency at 2450 megahertz and 500 watts for 2 minutes under a nitrogen stream, water droplets were observed at the top of the flask, and when high frequency was irradiated at 200 watts for 5 minutes, no water droplets were observed. Thus, a reddish brown product containing anhydrous sodium polysulfide was obtained.
- Comparative Example 1 A 200 ml three-necked flask was charged with 3.21 g of hydrous sodium hydrosulfide having a purity of 72.3%, 1.68 g of granular sodium hydroxide, and 3.83 g of sulfur, and heated in an oil bath at 140 ° C. under a nitrogen stream. While mixing, they were mixed uniformly. After 15 minutes, the sulfur was dissolved, but granular sodium hydroxide grains were observed. Further, the temperature was raised to 170 ° C. and left for 30 minutes, but granular sodium hydroxide particles were observed.
- the temperature of the oil bath was set to 140 ° C., and 2 ml of water was added.
- the reaction mixture immediately became a brown homogeneous solution, and the first stage reaction proceeded, and a product containing sodium polysulfide was observed.
- Example 5 A 200 ml three-necked flask was charged with 4.2 g of flaky sulfur and 8.6 g of a 48% sodium hydroxide aqueous solution, and these were uniformly mixed while heating in a 140 ° C. oil bath under a nitrogen stream. This mixture became a dark brown solution in about 15 minutes. Thereafter, stirring was performed for 1 hour. The reaction mixture was dehydrated by heating at 150 ° C. and 3 torr pressure for 3 hours and dried. Thus, a reddish brown reaction mixture containing anhydrous sodium polysulfide was obtained.
- the dried reaction mixture was charged with 110 g of ethanol dehydrated with molecular sieves, stirred for 30 minutes, then charged with 16.9 g of TESPC, and reacted at 60 ° C. After 3 hours, TESPC was consumed by 90.5% according to the gas chromatograph.
- the obtained reaction mixture was filtered with a filter paper, and then ethanol was distilled off.
- 16.6 g of a sulfur-containing organosilicon compound having a polysulfide structure, which is a pale yellow liquid was obtained.
- the average chain length of sulfur of this compound by NMR was 2.75.
- Example 6 In a 200 ml three-necked flask, 5.18 g of powdered sulfur and 6.90 g of 48% sodium hydroxide aqueous solution were charged, and these were uniformly mixed while heating in a 140 ° C. oil bath under a nitrogen stream. This mixture became a brown solution in about 15 minutes. Thereafter, stirring was performed for 1 hour. The reaction mixture was dehydrated by heating at 150 ° C. and 3 torr pressure for 3 hours and dried. In this way, an orange reaction mixture containing anhydrous sodium polysulfide was obtained.
- the dried reaction mixture was charged with 110 g of ethanol dehydrated with molecular sieves, stirred for 30 minutes, charged with 14.45 g of TESPC, and reacted at 60 ° C. for 3 hours.
- TESPC was 93.8%.
- the obtained reaction mixture was filtered with a filter paper, and then ethanol was distilled off.
- 15.4 g of a sulfur-containing organosilicon compound having a polysulfide structure, which is a pale yellow liquid was obtained.
- the average chain length of sulfur of this compound by NMR was 3.73.
- Example 7 A 200 ml three-necked flask was charged with 4.2 g of sulfur and 8.6 g of a 48% sodium hydroxide aqueous solution, and these were uniformly mixed while heating in a 140 ° C. oil bath under a nitrogen stream. This mixture became a dark brown solution in about 15 minutes. Thereafter, stirring was performed for 30 minutes. When this reaction mixture was irradiated with a high frequency at 2450 MHz and 500 watts for 2 minutes under a nitrogen stream, water droplets were observed on the upper part of the flask, and further when high frequency waves were irradiated for 7 minutes at 200 watts, no water droplets were observed. Thus, a reddish brown product containing anhydrous sodium polysulfide was obtained.
- the dried reaction mixture was charged with 110 g of ethanol dehydrated with molecular sieves, stirred for 2 hours, then charged with 16.9 g of TESPC, and reacted at 80 ° C. for 4 hours. According to the gas chromatograph, TESPC was consumed by 86.4%.
- the obtained reaction mixture was filtered with a filter paper, and then ethanol was distilled off.
- 16.3 g of a sulfur-containing organosilicon compound having a polysulfide structure, which is a pale yellow liquid was obtained.
- the average chain length of sulfur of this compound by NMR was 2.67.
- Comparative Example 2 A 200 ml three-necked flask was charged with 4.2 g of powdery sulfur and 4.2 g of granular sodium hydroxide, and these were uniformly mixed while heating in a 140 ° C. oil bath under a nitrogen stream. After 15 minutes, the sulfur dissolved, but granular caustic soda particles were observed. Further, the temperature was raised to 170 ° C. and left for 30 minutes, but granular particles of caustic soda were observed.
- the temperature of the oil bath was set to 140 ° C., and 2 ml of water was added.
- the reaction mixture immediately became a brown homogeneous solution, and the first stage reaction proceeded, and a product containing sodium polysulfide was observed.
- Example 8 A 200 ml three-necked flask was charged with 6.24 g of hydrous sodium sulfide trihydrate, 2.3 g of sulfur, 1 g of ion-exchanged water and 110 g of toluene, and heated and mixed in a 100 ° C. oil bath under a nitrogen stream. This mixture became a dark brown solution in about 15 minutes. A condenser with a moisture fraction receiver was attached, the temperature was raised to 130 ° C., and the refluxed toluene and water were separated. After about 5 hours, only toluene was refluxed, and then toluene was distilled off. Thus, a reaction mixture containing anhydrous sodium polysulfide was obtained.
- Example 9 A 200 ml three-necked flask was charged with 10.97 g of hydrous sodium hydrosulfide having a purity of 72.3%, 11.81 g of a 48% aqueous sodium hydroxide solution, 6.9 g of sulfur and 60 g of ethanol, and placed in an oil bath at 80 ° C. under a nitrogen stream. , Heated and mixed. This mixture became a dark brown solution in about 15 minutes. Further, 50 g of ethanol was added, 90 g of an azeotropic mixture of ethanol and water was distilled off at 130 ° C., and then 90 g of ethanol dehydrated with molecular sieves was added, and 90 g was distilled off. The same operation was repeated a total of 6 times. Thus, a reaction mixture containing anhydrous sodium polysulfide was obtained.
- the water content in the distilled ethanol was measured with a Karl Fischer moisture meter, and the total water content was 11.2 g.
- the amount of water generated in the calculation is 11.6 g, and 96.6% of water is removed.
- hydrous alkali hydrosulfide, sulfur, hydrous alkali sulfide, and sulfur are heated and mixed in an inert gas atmosphere and in the presence of water.
- industrially useful sulfur-containing organosilicon compounds can be easily obtained by dehydrating water in the system by azeotropic distillation and causing a second reaction with halogenoalkoxysilane in a polar solvent.
- a high-purity sulfur-containing organosilicon compound having a polysulfide structure can be obtained by an inexpensive and simple method.
- a sulfur-containing organosilicon compound is a substance that binds a synthetic rubber or natural rubber having an unsaturated bond to a white filler such as silica, clay or talc, or a filler such as surface-modified carbon black, which is blended in the rubber. Used.
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Abstract
Description
しかし、この方法では無水硫化ナトリウムを作成後、所望の含硫黄有機珪素化合物の硫黄連鎖量に合わせて硫黄を添加するため、反応槽の開閉が必要であり、工数が多くなるという問題点があった。
すなわち、第一発明は、水存在下において、不活性ガス雰囲気下で、水硫化アルカリ、硫黄および水酸化アルカリを50~150℃で混合して反応させ、得られた反応混合物を脱水処理した後、極性溶媒中で上記一般式[I]で表されるハロゲノアルコキシシランと反応させ、上記一般式[II]で表される含硫黄有機珪素化合物を得ることを特徴とする含硫黄有機珪素化合物の製造方法である。
つぎに第二発明について詳しく説明をする。
用いる硫黄は、粉末状、フレーク、粒状など形状を問わないが、反応時間の短縮化には粒子径の細かな粉末状が好ましい。
200mlの三つ口フラスコに、純度72.3%の含水水硫化ナトリウム3.71g、48%水酸化ナトリウム水溶液3.94g、および硫黄2.3gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。この混合物は15分程度で濃い褐色の溶液となった。その後1時間攪拌を行った。この反応混合物を温度150℃、圧力3トールで3時間加熱することにより、脱水を行った。こうして、無水多硫化ナトリウムを含む赤褐色の反応混合物を得た。
200mlの三つ口フラスコに、純度72.3%の含水水硫化ナトリウム3.21g、48%水酸化ナトリウム水溶液3.46g、および硫黄3.83gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。この混合物は15分程度で濃い褐色の溶液となった。その後1時間攪拌を行った。この反応混合物を温度150℃、圧力3トールで3時間加熱することにより、脱水を行った。こうして、無水多硫化ナトリウムを含むオレンジ色の反応混合物を得た。
200mlの三つ口フラスコに、純度72.3%の含水水硫化ナトリウム7.76g、48%水酸化ナトリウム水溶液8.23g、および硫黄9.6gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。この混合物は15分程度で濃い褐色の溶液となった。その後30分間攪拌を行った。この反応混合物にモレキュラシーブで脱水したトルエン52gを添加し、トルエンと水を共沸させ、トルエンを水とともに留去した。この共沸操作を3回繰り返した。こうして、無水多硫化ナトリウムを含む生成物を得た。
200mlの三つ口フラスコに、純度72.3%の含水水硫化ナトリウム3.66g、48%水酸化ナトリウム水溶液3.94g、および硫黄2.3gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。この混合物は15分程度で濃い褐色の溶液となった。その後30分間攪拌を行った。この反応混合物に窒素気流下で2450メガヘルツ、500ワットで2分高周波を照射したところ、フラスコ上部に水滴が観察され、更に200ワットで5分間高周波を照射したところ、水滴は観察されなくなった。こうして、無水多硫化ナトリウムを含む赤褐色の生成物を得た。
200mlの三つ口フラスコに、純度72.3%の含水水硫化ナトリウム3.21g、粒状水酸化ナトリウム1.68g、および硫黄3.83gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。15分後、硫黄は溶解したが、粒状水酸化ナトリウムの粒が観察された。更に温度を170℃まで昇温し30分放置したが、粒状水酸化ナトリウムの粒が観察された。
200mlの三口フラスコにフレーク状の硫黄4.2gおよび48%水酸化ナトリウム水溶液8.6gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。この混合物は15分程度で濃い褐色の溶液となった。その後1時間攪拌を行った。この反応混合物を温度150℃、圧力3トールで3時間加熱することにより脱水し、乾燥させた。こうして、無水多硫化ソーダを含む赤褐色の反応混合物を得た。
200mlの三口フラスコに粉末状の硫黄5.18gおよび48%水酸化ナトリウム水溶液6.90gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。この混合物は15分程度で褐色の溶液となった。その後1時間攪拌を行った。この反応混合物を温度150℃、圧力3トールで3時間加熱することにより脱水し、乾燥させた。こうして、無水多硫化ソーダを含むオレンジ色の反応混合物を得た。
200mlの三口フラスコに硫黄4.2gおよび48%水酸化ナトリウム水溶液8.6gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。この混合物は15分程度で濃い褐色の溶液となった。その後30分間攪拌を行った。この反応混合物に窒素気流下で2450メガヘルツ、500ワットで2分高周波を照射したとこと、フラスコ上部に水滴が観察され、更に200ワットで7分間高周波を照射したところ、水滴は観察されなくなった。こうして、無水多硫化ナトリウムを含む赤褐色の生成物を得た。
200mlの三口フラスコに、粉末状の硫黄4.2gおよび粒状水酸化ナトリウム4.2gを投入し、窒素気流下で140℃のオイルバスで加熱しながら、これらを均一に混合した。15分後、硫黄は溶解したが、粒状苛性ソーダの粒が観察された。更に170℃まで昇温し30分放置したが、粒状苛性ソーダの粒が観察された。
200mlの三口フラスコに含水硫化ナトリウム3水和物6.24g、硫黄2.3g、イオン交換水1gおよびトルエン110gを投入し、窒素気流下で100℃のオイルバスにかけて、加熱して混合した。この混合物は、15分程度で濃い褐色の溶液となった。水分分留受け器付コンデンサーを装着し、130℃に昇温し、還流したトルエンと水を分離した。約5時間後にトルエンのみの還流となった後にトルエンを留去した。こうして、無水多硫化ナトリウムを含む反応混合物を得た。
200mlの三口フラスコに純度72.3%の含水水硫化ナトリウム10.97g、48%水酸化ナトリウム水溶液11.81g、硫黄6.9gおよびエタノール60gを投入し、窒素気流下で80℃のオイルバスにかけて、加熱して混合した。この混合物は、15分程度で濃い褐色の溶液となった。更にエタノールを50g追加し、130℃でエタノールと水の共沸混合液を90g留去し、その後、モレキュラシーブで脱水したエタノール90gを追加し、90g留去した。同様の操作を計6回繰り返した。こうして、無水多硫化ナトリウムを含む反応混合物を得た。
Claims (15)
- 水および水と共沸する溶媒の存在下において、不活性ガス雰囲気下で、水硫化アルカリ、硫黄および水酸化アルカリ、あるいは硫化アルカリおよび硫黄を混合して反応させ、得られた反応混合物を共沸により脱水処理した後、極性溶媒中で下記一般式[I]で表されるハロゲノアルコキシシランと反応させ、下記一般式[II]で表される含硫黄有機珪素化合物を得ることを特徴とする含硫黄有機珪素化合物の製造方法。
- 水硫化アルカリが、水硫化ナトリウムおよび/または水硫化カリウムである請求項1に記載の含硫黄有機珪素化合物の製造方法。
- 水硫化アルカリが、含水水硫化アルカリである請求項1に記載の含硫黄有機珪素化合物の製造方法。
- 水硫化アルカリが、水硫化ナトリウムおよび/または水硫化カリウムであり、硫化アルカリが硫化ナトリウムおよび/または硫化カリウムである請求項3に記載の含硫黄有機珪素化合物の製造方法。
- 水硫化アルカリが、含水水硫化アルカリであり、硫化アルカリが、含水硫化アルカリである請求項3に記載の含硫黄有機珪素化合物の製造方法。
- 水酸化アルカリが、水酸化ナトリウムおよび/または水酸化カリウムである請求項1~3のいずれかに記載の含硫黄有機珪素化合物の製造方法。
- 脱水処理が、減圧若しくは常圧での加熱、または、共沸溶媒と水との共沸による水分留去である請求項1または2に記載の含硫黄有機珪素化合物の製造方法。
- 共沸溶媒が、キシレン、トルエン、オクタン、ノナン、デカン、ウンデカンおよびこれらの2以上の組合せからなる群から選ばれる請求項9に記載の含硫黄有機珪素化合物の製造方法。
- 極性溶媒が、アルコール類、エーテル類、ケトン類およびこれらの2以上の組合せからなる群から選ばれる請求項1~3のいずれかに記載の含硫黄有機珪素化合物の製造方法。
- アルコール類が、メタノール、エタノール、プロパノールおよびこれらの2以上の組合せからなる群から選ばれる請求項11記載の含硫黄有機珪素化合物の製造方法。
- エーテル類が、テトラヒドロフラン、2-メチルテトラヒドロフラン、テトラヒドロピラン、クラウンエーテル、ジメトキシエタン、ジエチレングリコールジメチルエーテル、トリエチレングリコールジメチルエーテル、ジエチレングリコールジブチルエーテル、プロピレングリコールジメチルエーテルおよびこれらの2以上の組合せからなる群から選ばれる請求項11記載の含硫黄有機珪素化合物の製造方法。
- ケトン類が、アセトンおよび/またはメチルエチルケトンである請求項11記載の含硫黄有機珪素化合物の製造方法。
- 水と共沸する溶媒が、アルコール類、エーテル類、ケトン類、芳香族炭化水素類からなる群から選ばれる少なくとも1種である請求項3に記載の含硫黄有機珪素化合物の製造方法。
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JP2014524422A (ja) * | 2011-08-12 | 2014-09-22 | ランクセス・ドイチュランド・ゲーエムベーハー | 架橋有機ケイ素ポリスルフィド |
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CN102875587B (zh) * | 2012-10-21 | 2015-08-12 | 荆州市江汉精细化工有限公司 | 一种利用多硫化钠合成含硫硅烷偶联剂的方法 |
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JPH07228588A (ja) | 1994-02-16 | 1995-08-29 | Shin Etsu Chem Co Ltd | 含硫黄有機珪素化合物の製造方法 |
US5663396A (en) | 1996-10-31 | 1997-09-02 | The Goodyear Tire & Rubber Company | Preparation of sulfur-containing organosilicon compounds |
JP2001039985A (ja) | 1999-07-01 | 2001-02-13 | Degussa Huels Ag | 多硫化シラン化合物の製造法 |
JP2004521946A (ja) * | 2001-06-29 | 2004-07-22 | ダウ・コーニング・コーポレイション | 硫黄含有有機シロキサン化合物の調製方法 |
JP2006249086A (ja) * | 2005-03-07 | 2006-09-21 | Degussa Ag | オルガノシランの製造方法 |
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US6384256B1 (en) * | 2001-06-29 | 2002-05-07 | Dow Corning Corporation | Process for the preparation of sulfur-containing organosilicon compounds |
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- 2009-05-20 CN CN2009801183755A patent/CN102037001A/zh active Pending
- 2009-05-20 JP JP2010513034A patent/JPWO2009142222A1/ja not_active Withdrawn
- 2009-05-20 EP EP09750584A patent/EP2298781A4/en not_active Withdrawn
- 2009-05-20 WO PCT/JP2009/059240 patent/WO2009142222A1/ja active Application Filing
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JPS5726671B2 (ja) | 1977-03-24 | 1982-06-05 | ||
JPH07228588A (ja) | 1994-02-16 | 1995-08-29 | Shin Etsu Chem Co Ltd | 含硫黄有機珪素化合物の製造方法 |
US5663396A (en) | 1996-10-31 | 1997-09-02 | The Goodyear Tire & Rubber Company | Preparation of sulfur-containing organosilicon compounds |
JP2001039985A (ja) | 1999-07-01 | 2001-02-13 | Degussa Huels Ag | 多硫化シラン化合物の製造法 |
JP2004521946A (ja) * | 2001-06-29 | 2004-07-22 | ダウ・コーニング・コーポレイション | 硫黄含有有機シロキサン化合物の調製方法 |
JP2006249086A (ja) * | 2005-03-07 | 2006-09-21 | Degussa Ag | オルガノシランの製造方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014524422A (ja) * | 2011-08-12 | 2014-09-22 | ランクセス・ドイチュランド・ゲーエムベーハー | 架橋有機ケイ素ポリスルフィド |
US9376551B2 (en) | 2011-08-12 | 2016-06-28 | Lanxess Deutschland Gmbh | Cross-linked organosilicon polysulfides |
Also Published As
Publication number | Publication date |
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EP2298781A4 (en) | 2012-04-25 |
CN102037001A (zh) | 2011-04-27 |
JPWO2009142222A1 (ja) | 2011-09-29 |
EP2298781A1 (en) | 2011-03-23 |
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