WO2020069731A1 - Verfahren zur herstellung von alkandiolen - Google Patents
Verfahren zur herstellung von alkandiolenInfo
- Publication number
- WO2020069731A1 WO2020069731A1 PCT/EP2018/076862 EP2018076862W WO2020069731A1 WO 2020069731 A1 WO2020069731 A1 WO 2020069731A1 EP 2018076862 W EP2018076862 W EP 2018076862W WO 2020069731 A1 WO2020069731 A1 WO 2020069731A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alkanediols
- mixture
- solvent
- group
- radical chain
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/44—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by addition reactions, i.e. reactions involving at least one carbon-to-carbon double or triple bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
- C07C31/20—Dihydroxylic alcohols
Definitions
- the invention is in the field of cosmetic raw materials and relates to a process for the preparation of longer-chain alkanediols via the radical addition route.
- Alkanediols especially 1,2- and 1,3-alkanediols, are important auxiliaries for cos metics and serve as starting materials for the synthesis of acetals, which are used in the fragrance industry.
- alkane diols include 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol and in particular 1,2-pentanediol.
- a considerable disadvantage, however, is that the products always have an unpleasant smell, which must be masked in a complex manner, particularly in cosmetic end formulations.
- the usual production are also technically complex and require a large amount of water, which must then be cleaned ge expensive.
- 1,2-pentanediol for example, is started from furfuryl alcohol, which is obtained in large quantities as waste in sugar production from cereals.
- EP 1876162 Al describes the preparation of alkane diols from the corresponding olefins by means of epoxidation and subsequent hydrolysis.
- the crude products thus obtained were further purified by post-treatment to remove by-products with an unpleasant smell.
- the cleaning is carried out at the epoxyalkanes stage before they are hydrolyzed to the corresponding alkanediols.
- 1,2-pentanediol is generally carried out from n-pent-1-ene, which is obtainable from petrochemical sources.
- the n-pent-1-ene is converted to the corresponding epoxide using peroxides (eg hydrogen peroxide) and then converted into 1,2-pentanediol using organic acids such as formic acid or mineral acids (cf. EP 0257243 Al or EP 0141775 Al) .
- a first object of the present invention was therefore to provide an old native process for the preparation of longer-chain alkanediols, especially 1,2- and 1,3-alkanediols with 5 to 12 carbon atoms, which are free of is a disadvantage described above.
- the products should be odorless and the process should be characterized by the simplest possible design and a low amount of waste products. Furthermore, the process should also be carried out with renewable raw materials. This is guaranteed if the olefins are made from natural alcohols and the diols come from natural resources.
- a first subject of the invention relates to a process for the preparation of alkanediols of the formula (I)
- R represents a linear or branched alkyl group having 1 to 12 carbon atoms
- R 1 represents hydrogen or a methyl group
- X represents no or a CH 2 group, consisting of or comprising the following steps:
- step (c) heating the mixture from step (b) to about 100 to 200 ° C;
- a second object of the invention relates to a modified method compared to the first alternative for the preparation of alkanediols of the formula (I)
- R represents a linear or branched alkyl group having 1 to 12 carbon atoms
- R 1 represents hydrogen or a methyl group
- X represents no or a CH 2 group, consisting of or comprising the following steps:
- R represents a linear or branched alkyl group having 1 to 12 carbon atoms.
- the radical addition takes place in short times and high yields.
- the products are odorless, the technical effort is low and there are practically no by-products or cop products which have to be disposed of again at great expense.
- the selection of the olefins depends on the chain length of the desired alkanediol. If a 1,2-alkanediol is desired, the final chain length results from the chain length of the olefin plus 2, a 1,3-alkanediol is desired from the chain length of the olefin plus 3.
- 1,2-alkanediols are to be obtained, ethylene glycol is used as the alkylene glycol. If 1,3-alkanediols are desired, 1,3-propylene glycol is used. Mixtures can of course also be used.
- the olefins and the alkylene glycols are used in the ratio of the equivalents from about 1: 1 to about 1:50, preferably from about 1:10 to about 1:40 and in particular from about 1:20 to about 1:30.
- Radicals are required to start the addition reaction.
- the mixture will therefore added free-radical initiators, which may, for example, peroxides, such as tert-butyl peroxide or benzoyl peroxide '; further examples can be found in the publications DE 2136496 Al and DE 19853862 Al.
- azo compounds can also be used, such as azoisobutyronitrile.
- metal oxides are also suitable, especially metal oxides of transition metals, namely in particular copper oxides, iron oxides, manganese oxides, indium oxides, cobalt oxides, silver oxides and mixtures thereof.
- the process can be carried out particularly well with metal oxides selected from Ag 2 0, CuO, Fe 2 Ü3, Fe30 4 , CuFe 2 0 4 , Co3Ü 4 , CoO, Mn0 2 , ln 2 Ü3 and mixtures thereof.
- the metal oxides can preferably be used as powder or granules.
- the metal oxides can also be applied to a suitable inorganic carrier material, such as aluminum oxide.
- the radical chain initiators are usually used in amounts of about 0.5 to about
- the radical addition is carried out in a solvent or solubilizer.
- a solvent or solubilizer for this purpose, in particular non-polar solvencies, which themselves cannot form radicals or only with difficulty, such as ethers (e.g. methyl tert-butyl ether) and special dialkyl carbonates, such as dimethyl carbonate or diethyl carbonate, are suitable.
- ethers e.g. methyl tert-butyl ether
- dialkyl carbonates such as dimethyl carbonate or diethyl carbonate
- the reaction is carried out at elevated temperature.
- a temperature range from approximately 100 to approximately 200 ° C. is suitable. temperatures in the range from about 150 to about 180 ° C. are particularly preferred.
- a discontinuous stirred tank reactor is suitable, for example, for carrying out the batch process.
- a continuous tubular reactor, stirred tank reactor, fixed bed reactor or belt bed reactor is suitable.
- a product mixture which, depending on the duration and the process parameters used, is a mixture with a varying concentration of the starting materials and products.
- the product mixture can be separated by suitable separation processes, in particular by distillation, as a result of which the already high purity of the desired alpha-monoalkyl products can be increased further and, if appropriate, unreacted starting materials can be recovered and reused.
- the purification is preferably carried out in a canned column.
- alkanediols obtained by the process according to the invention are suitable as additives for cosmetics, but also for detergents and cleaning agents. They can also be used as fragrances or their precursors after acetalization.
- a 50% by weight solution / mixture in dimethyl carbonate of 1 equivalent of olefin, 30 equivalents of alkylene glycol and 1% by weight, based on the total of olefin and glycol, of di-tert-butyl peroxide is initially introduced into an autoclave and at an initial nitrogen pressure of 5 bar heated to 155 to 160 ° C. The pressure rises to 15-20 bar. The mixture is stirred for 1 hour at this temperature and then cooled to room temperature. Dimethyl carbonate and excess glycol are distilled off under vacuum. The residue thus obtained is distilled on a 30 cm column under vacuum.
- a 1 1 mixture of alkylene glycol (40 equivalents based on olefin) and dimethyl carbonate is placed in an autoclave and heated to 155-160 ° C. at initially 5 bar nitrogen pressure. At this temperature, an approximately 75 wt .-% solution in dimethyl carbonate from 1 equivalent of olefin, 0.35 equivalents of di-tert-butyl peroxide is metered in over 1.5 hours. The pressure rises to 15-20 bar. It is stirred for a further 15 min under these conditions and then cooled to room temperature. Dimethyl carbonate and excess diol are distilled off. The crude product is finely distilled on a canned column (Fischer canned column ® HMS 500 AC). The yield is 35-50% of theory (based on the olefin used). EXAMPLE 2
- 1,200 g (19.4 mol) of 1,2-ethylene glycol and 900 g of dimethyl carbonate were placed in a 5 liter autoclave and the mixture was heated to 155 to 160 ° C. at an initial nitrogen pressure of 5 bar. At this temperature, a solution of 54 g (0.48 mol) of 1-octene, 210 g of dimethyl carbonate and 24.6 g (0.17 mol) of di-tert-butyl peroxide was metered in over the course of 1.5 hours. It was then stirred for a further 15 minutes and then cooled to room temperature. Dimethyl carbonate and excess 1,2-ethylene glycol were distilled off on a rotary evaporator.
- Table 1 shows the structures, molecular weights and data from mass spectroscopy.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112021005805-2A BR112021005805A2 (pt) | 2018-10-02 | 2018-10-02 | método de produção de alcanodióis |
CN201880098220.9A CN113195444A (zh) | 2018-10-02 | 2018-10-02 | 制备链烷二醇的方法 |
EP18782716.7A EP3860968A1 (de) | 2018-10-02 | 2018-10-02 | Verfahren zur herstellung von alkandiolen |
US17/281,097 US20220242808A1 (en) | 2018-10-02 | 2018-10-02 | Process for preparing alkanediols |
JP2021518062A JP2022504061A (ja) | 2018-10-02 | 2018-10-02 | アルカンジオールの製造方法 |
PCT/EP2018/076862 WO2020069731A1 (de) | 2018-10-02 | 2018-10-02 | Verfahren zur herstellung von alkandiolen |
KR1020217012701A KR20210071016A (ko) | 2018-10-02 | 2018-10-02 | 알칸디올류의 조제 (preparing) 를 위한 프로세스 |
MX2021003657A MX2021003657A (es) | 2018-10-02 | 2018-10-02 | Proceso para la producción de alcanodioles. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2018/076862 WO2020069731A1 (de) | 2018-10-02 | 2018-10-02 | Verfahren zur herstellung von alkandiolen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020069731A1 true WO2020069731A1 (de) | 2020-04-09 |
Family
ID=63787946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/076862 WO2020069731A1 (de) | 2018-10-02 | 2018-10-02 | Verfahren zur herstellung von alkandiolen |
Country Status (8)
Country | Link |
---|---|
US (1) | US20220242808A1 (de) |
EP (1) | EP3860968A1 (de) |
JP (1) | JP2022504061A (de) |
KR (1) | KR20210071016A (de) |
CN (1) | CN113195444A (de) |
BR (1) | BR112021005805A2 (de) |
MX (1) | MX2021003657A (de) |
WO (1) | WO2020069731A1 (de) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1568565A1 (de) * | 1966-08-13 | 1970-04-16 | Hoechst Ag | Verfahren zur Herstellung von Alkandiolen |
DE2136496A1 (de) | 1971-07-21 | 1973-02-01 | Haarmann & Reimer Gmbh | Verfahren zur herstellung von oxabicycloalkenen |
EP0141775A1 (de) | 1983-08-30 | 1985-05-15 | Ciba-Geigy Ag | Kontinuierliches Verfahren zur Herstellung von 1,2-Alkandiolen |
EP0257243A2 (de) | 1986-08-23 | 1988-03-02 | Degussa Aktiengesellschaft | Verfahren zur Herstellung vicinaler Diole |
DE19853862A1 (de) | 1997-12-23 | 1999-06-24 | Haarmann & Reimer Gmbh | Verfahren zur Herstellung substituierter Cycloketone |
US6528665B1 (en) | 2002-04-03 | 2003-03-04 | Albemarle Corporation | Preventing undesired odor in and/or purifying alkanediols |
EP1876162A1 (de) | 2005-04-28 | 2008-01-09 | Adeka Corporation | Alkandiolzusammensetzung, verfahren zu deren herstellung und kosmetikum |
WO2012152849A1 (de) | 2011-05-09 | 2012-11-15 | Symrise Ag | Verfahren zur herstellung von 1,2 pentandiol |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5231321B1 (de) * | 1965-03-24 | 1977-08-13 | ||
US3692848A (en) * | 1969-06-06 | 1972-09-19 | Basf Ag | Production of alkenediols |
US4042631A (en) * | 1975-04-09 | 1977-08-16 | Continental Oil Company | Telomers from β-diketones and vinyl chloride |
US4864066A (en) * | 1987-05-23 | 1989-09-05 | Basf Aktiengesellschaft | Preparation of alkanediols from alkynols |
DE3717405A1 (de) * | 1987-05-23 | 1988-12-08 | Basf Ag | Verfahren zur herstellung von alkanolen aus alkinolen |
GB8806526D0 (en) * | 1988-03-18 | 1988-04-20 | Shell Int Research | Process for preparation of alkanediols |
DE4312815A1 (de) * | 1993-04-20 | 1994-10-27 | Peroxid Chemie Gmbh | Herstellung von tertiären Alkoholen durch radikalische Additionsreaktion von sekundären Alkoholen an Alkene |
KR100457416B1 (ko) * | 2001-11-01 | 2004-11-18 | 삼성전자주식회사 | 3-히드록시에스터 화합물로부터 1,3-알칸디올을 제조하는방법 |
EP2496548B1 (de) * | 2009-11-04 | 2013-08-28 | Firmenich S.A. | Ester als Parfumbestandteile |
EP3050869B1 (de) * | 2015-01-30 | 2019-10-02 | Symrise AG | Verfahren zur Herstellung von substituierten Alkylcycloalkanonen |
-
2018
- 2018-10-02 MX MX2021003657A patent/MX2021003657A/es unknown
- 2018-10-02 US US17/281,097 patent/US20220242808A1/en not_active Abandoned
- 2018-10-02 EP EP18782716.7A patent/EP3860968A1/de active Pending
- 2018-10-02 JP JP2021518062A patent/JP2022504061A/ja active Pending
- 2018-10-02 WO PCT/EP2018/076862 patent/WO2020069731A1/de unknown
- 2018-10-02 BR BR112021005805-2A patent/BR112021005805A2/pt not_active Application Discontinuation
- 2018-10-02 CN CN201880098220.9A patent/CN113195444A/zh active Pending
- 2018-10-02 KR KR1020217012701A patent/KR20210071016A/ko not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1568565A1 (de) * | 1966-08-13 | 1970-04-16 | Hoechst Ag | Verfahren zur Herstellung von Alkandiolen |
DE2136496A1 (de) | 1971-07-21 | 1973-02-01 | Haarmann & Reimer Gmbh | Verfahren zur herstellung von oxabicycloalkenen |
EP0141775A1 (de) | 1983-08-30 | 1985-05-15 | Ciba-Geigy Ag | Kontinuierliches Verfahren zur Herstellung von 1,2-Alkandiolen |
EP0257243A2 (de) | 1986-08-23 | 1988-03-02 | Degussa Aktiengesellschaft | Verfahren zur Herstellung vicinaler Diole |
DE19853862A1 (de) | 1997-12-23 | 1999-06-24 | Haarmann & Reimer Gmbh | Verfahren zur Herstellung substituierter Cycloketone |
US6528665B1 (en) | 2002-04-03 | 2003-03-04 | Albemarle Corporation | Preventing undesired odor in and/or purifying alkanediols |
EP1876162A1 (de) | 2005-04-28 | 2008-01-09 | Adeka Corporation | Alkandiolzusammensetzung, verfahren zu deren herstellung und kosmetikum |
WO2012152849A1 (de) | 2011-05-09 | 2012-11-15 | Symrise Ag | Verfahren zur herstellung von 1,2 pentandiol |
Non-Patent Citations (4)
Title |
---|
ADKINS; CONNOR, JOURNAL OF AMERICAN CHEMICAL SOCIETY, vol. 53, 1931, pages 1091 |
KAUFMANN; ADAMS, JOURNAL OF AMERICAN CHEMICAL SOCIETY, vol. 45, 1923, pages 3029 |
ORGANIC SYNTHESIS, vol. 8, 1928, pages 92 |
SMITH; FUZEK, JOURNAL OF AMERICAN CHEMICAL SOCIETY, vol. 71, 1949, pages 415 |
Also Published As
Publication number | Publication date |
---|---|
KR20210071016A (ko) | 2021-06-15 |
BR112021005805A2 (pt) | 2021-06-29 |
CN113195444A (zh) | 2021-07-30 |
US20220242808A1 (en) | 2022-08-04 |
EP3860968A1 (de) | 2021-08-11 |
MX2021003657A (es) | 2021-05-28 |
JP2022504061A (ja) | 2022-01-13 |
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