CN102516291A - Schiff base transition metal complex containing alkoxy groups, and preparation method and application thereof - Google Patents

Schiff base transition metal complex containing alkoxy groups, and preparation method and application thereof Download PDF

Info

Publication number
CN102516291A
CN102516291A CN2011104074674A CN201110407467A CN102516291A CN 102516291 A CN102516291 A CN 102516291A CN 2011104074674 A CN2011104074674 A CN 2011104074674A CN 201110407467 A CN201110407467 A CN 201110407467A CN 102516291 A CN102516291 A CN 102516291A
Authority
CN
China
Prior art keywords
transition metal
schiff
metal complex
base transition
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011104074674A
Other languages
Chinese (zh)
Inventor
李三喜
王玉现
王松
张爱玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang University of Technology
Original Assignee
Shenyang University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang University of Technology filed Critical Shenyang University of Technology
Priority to CN2011104074674A priority Critical patent/CN102516291A/en
Publication of CN102516291A publication Critical patent/CN102516291A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/003Compounds containing elements of Groups 4 or 14 of the Periodic Table without C-Metal linkages
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02Ethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention relates to a Schiff base transition metal complex containing alkoxy groups, a preparation method thereof and application of a catalyst composition composed of the transition metal complex and aluminum alkyl in catalyzing ethene polymerization, belonging to the technical field of catalysts. The preparation method for the Schiff base transition metal complex containing alkoxy groups comprises the following steps: synthesizing Schiff base ligand through a condensation reaction between substituted salicylaldehyde and an amine compound; reacting the ligand with an alkali metal compound to obtain a ligand salt solution; and reacting the ligand salt solution with MCl4 to prepare the Schiff base transition metal complex. The preparation method is simple; and when used for ethene polymerization, the synthesized Schiff base transition metal complex containing alkoxy groups has the following advantages compared to the prior art: common aluminum alkyl is used as a cocatalyst to substitute expensive MAO during polymerization, and the catalyst composition has high activity under the condition of a small usage amount of the cocatalyst. Hexane is used as a solvent to substitute toluene during polymerization, which is favorable for industrial introduction.

Description

A kind of Schiff's base transition metal complex, preparation method and its usage that contains alkoxy grp
Technical field
The present invention relates to a kind of Schiff's base transition metal complex that contains alkoxy grp and preparation method thereof, and the application of the catalyst composition of forming by this transition metal complex and aluminum alkyls in the catalyzed ethylene polymerization reaction; Belong to catalyst technical field.
Background technology
Schiff alkali received investigator's concern in recent years always.It is synthetic one type of relatively easy part, can come synthetic through amine and aldehyde that has carbonyl and copper reaction.Schiff bases part contains can the coordinate Sauerstoffatom and nitrogen-atoms, and is that metals ion and its coordination provide enough solid spaces through the intermediary carbochain, thus Schiff alkali very easily with post transition metal coordination formation title complex.Chinese patent 101967112A discloses a kind of two (5-bromosalicylaldehyde) quadrol that contracts and has closed the compound method of iron.It is different that Schiff alkali prepares employed raw material mix, and for example pyridylaldehyde and substituted aniline condensation form Schiff alkali, Vanillin and the condensation of 3-EL-970 and form Schiff alkali, 2, and 6-diacylpyridines and substituted aniline condensation form Schiff alkali etc.
But Schiff alkali and rear transition metal synthetic title complex catalysis in olefine polymerization under the effect of promotor, and polymerization activity is higher.Chinese patent 101927187A discloses a kind of Fe that is used for ethylene oligomerization and polymeric catalyzer 2-(6 ' imine pyridyl) benzothiazole 2+, Co 2+, Ni 2+, Cr 3+Muriate.This catalyzer has catalytic performance preferably under promotor modified methylaluminoxane or diethylaluminum chloride effect.Use toluene to be solvent during polymerization, and the mol ratio of metallic aluminium is 200~3000 in Primary Catalysts central metal and the promotor.Patent CN 1934121A discloses two-aryl imine pyridine MXn title complex.To select toluene for use be solvent to polymerization embodiment in this patent, and modified methylaluminoxane is a promotor.Patent CN101348501A discloses 2-imino--9-phenyl-1,10-phenanthroline transient metal complex and preparation method thereof and application.This metal complexes is used for the catalyzed ethylene oligomerisation reaction, shows excellent catalytic activity and high 1-butylene selectivity.Selecting toluene when this catalyzer is used for polymerization for use is solvent, and the mol ratio of metallic aluminium and promotor central metal is 100~2000 in the promotor.
Be used to the synthetic of Schiff aar ligand though o-vanillin has been increasing, the material that contains alkoxy grp comparatively speaking use in Schiff alkali synthetic is still less, especially contains alkoxy grp in the aminated compounds.During the complex-catalyzed olefinic polymerization of Schiff alkali and rear transition metal synthetic in the past with having greater activity; But multiselect uses toluene to be solvent; Modified methylaluminoxane is a promotor; And the mol ratio of metallic aluminium and promotor central metal is higher in the promotor, is unfavorable for suitability for industrialized production.
Summary of the invention
The purpose of this invention is to provide a kind of Schiff's base transition metal complex that contains alkoxy grp and preparation method thereof; This title complex uses common aluminum alkyls to replace expensive MAO as promotor when polymerization; Under promotor consumption situation seldom, catalyzer has very high activity; Replace toluene to make solvent with hexane in the polyreaction, help suitability for industrialized production.
The present invention contains the Schiff's base transition metal complex of alkoxy grp, and its structure is following:
Figure 2011104074674100002DEST_PATH_IMAGE002
X, Y respectively independently are selected from alkoxyl group, phenoxy, substituent phenoxy in the formula; R 1~R 7Each independently is selected from hydrogen, C 1~C 6Alkyl, sec.-propyl, the tertiary butyl, phenyl; M is a transition metal; As if Y is amino substituent phenoxy, then structural formula such as figure below, wherein R 8Be the substituting group on the phenyl ring, independently be selected from hydrogen, C 1~C 6Alkyl, sec.-propyl, the tertiary butyl;
Figure 2011104074674100002DEST_PATH_IMAGE004
Described alkoxyl group is a methoxy or ethoxy.
The substituting group of substituent phenoxy is C 1~C 6Alkyl, sec.-propyl, the tertiary butyl or amino.
M is titanium or zirconium.
A kind of described preparation method who contains the Schiff's base transition metal complex of alkoxy grp is characterized in that it comprises the steps:
(1) under the anhydrous and oxygen-free condition, in the anhydrous methanol solvent,, under 20~60 ℃, carry out condensation reaction with substituted salicylic aldehydes and aminated compounds, remove by filter the anhydrous methanol solvent, the solid drying that obtains is promptly got schiff base ligand;
(2) under the anhydrous and oxygen-free condition, in dichloromethane solvent, schiff base ligand and the alkali metal cpd that makes above-mentioned preparation earlier-40~60 ℃ of reactions, makes the part salts solution by the mol ratio of about 1:1; Part salts solution and MCl then 4React-40~100 ℃ of mol ratios by 1:1 or 2:1, the decompressing and extracting dichloromethane solvent, resistates dissolves with methylene dichloride, and filtration, filtrate decompression are drained solvent, obtain schiff bases complex with the petroleum ether residual solid afterwards.
The said preparation method who contains the Schiff's base transition metal complex of alkoxy grp, wherein alkali metal cpd is butyllithium or sodium hydride in the step (2); MCl 4Transition metal halide is titanium tetrachloride or zirconium tetrachloride.
Described Schiff's base transition metal complex the quoting in the catalyzed ethylene polymerization reaction that contains alkoxy grp.
Said quoting specifically is under the effect of promotor aluminum alkyl catalyst; This Schiff's base transition metal complex that contains alkoxy grp has catalytic performance in the catalyzed ethylene polymerization reaction; Polyreaction is solvent with the hexane; N (Al): n (Ti) mol ratio is 1~1000:1, and the catalytic activity of this catalyzer can reach 10 6Level, polymkeric substance is a linear polyethylene, its viscosity-average molecular weight is the highest to be 32.34*10 5, melting range is 133~135 ℃.
Described promotor aluminum alkyls is trimethylaluminium, triethyl aluminum, triisobutyl aluminium, three n-butylaluminum, tri-n-hexyl aluminum or tri-n-octylaluminium.
Ethylene pressure is about 1MPa during described polymerization, and hydrogen pressure is 0~0.5 MPa.
Owing to adopt technique scheme, make the present invention have following advantage and effect:
Preparing method of the present invention is simple; The Schiff's base transition metal complex that synthetic contains alkoxy grp is used for vinyl polymerization and compared with prior art has the following advantages: use common aluminum alkyls to replace expensive MAO as promotor during polymerization; Under promotor consumption situation seldom, catalyzer has very high activity.Replace toluene to make solvent with hexane in the polyreaction, help suitability for industrialized production.
Description of drawings
Fig. 1 is the poly GPC figure of embodiment 9.
Embodiment
Below in conjunction with embodiment the present invention is described further.Following examples are merely several specific embodiment of the present invention, but design concept of the present invention is not limited thereto, and allly utilize this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Method among the following embodiment if no special instructions, is ordinary method.
Percentage composition among the following embodiment is quality percentage composition (w/w) if no special instructions.Title complex of the present invention can synthesize by following equation:
Figure 2011104074674100002DEST_PATH_IMAGE006
X, Y respectively independently are selected from alkoxyl group, phenoxy, substituent phenoxy in the formula; R 1~R 7Each independently is selected from hydrogen, C 1~C 6Alkyl, sec.-propyl, the tertiary butyl, phenyl; M is transition metals Ti or zirconium;
If Y is amino substituent phenoxy, title complex synthetic route of the present invention is following:
Figure 2011104074674100002DEST_PATH_IMAGE008
R wherein 8Be the substituting group on the phenyl ring, independently be selected from hydrogen, C 1~C 6Alkyl, sec.-propyl, the tertiary butyl;
Above-mentioned is methoxy or ethoxy in alkoxyl group; The substituting group of substituent phenoxy is C 1~C 6Alkyl, sec.-propyl, the tertiary butyl or amino.
The preparation method of the above-mentioned Schiff's base transition metal complex that contains alkoxy grp, it comprises the steps:
(1) under the anhydrous and oxygen-free condition, in the anhydrous methanol solvent,, under 20~60 ℃, carry out condensation reaction with substituted salicylic aldehydes and aminated compounds, remove by filter the anhydrous methanol solvent, the solid drying that obtains is promptly got schiff base ligand;
(2) under the anhydrous and oxygen-free condition, in dichloromethane solvent, schiff base ligand and the alkali metal cpd that makes above-mentioned preparation earlier-40~60 ℃ of reactions, makes the part salts solution by the mol ratio of about 1:1; Part salts solution and MCl then 4React-40~100 ℃ of mol ratios by 1:1 or 2:1, the decompressing and extracting dichloromethane solvent, resistates dissolves with methylene dichloride, and filtration, filtrate decompression are drained solvent, obtain schiff bases complex with the petroleum ether residual solid afterwards.
Alkali metal cpd in the above-mentioned steps (2) is butyllithium or sodium hydride; MCl 4Transition metal halide is titanium tetrachloride or zirconium tetrachloride.
Further specify the present invention below in conjunction with embodiment, but scope of the present invention is not limited to these embodiment.
Following all synthetic and polyreactions all are under the reaction conditions of anhydrous and oxygen-free, to carry out.
Embodiment 1:
The example that is prepared as with two o-vanillins (phenyl ether) benzene imines titanium complex.
(1) preparation of two o-vanillins (phenyl ether) benzene imine ligand: in the 250ml there-necked flask, add 40ml anhydrous methanol and 0.001mol4,4 '-diaminodiphenyl oxide is stirred to and is dissolved as colourless transparent solution fully; In constant pressure funnel, add 10ml anhydrous methanol dissolved 0.002mol o-vanillin, o-vanillin solution is slowly dropped in the there-necked flask, dropwise, reaction solution is behind 40 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part a, productive rate is 87%.
FT-IR:3430(-OH),1614(C=N),1257(C-O)
Ultimate analysis theoretical value (%): C, 71.79; N, 5.98; H, 5.13.Experimental value (%): C, 71.81; N, 6.12; H, 5.20.
(2) preparation of titanium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part a, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 30 ℃ of reaction 3h; Insert 10ml methylene dichloride and titanium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and titanium tetrachloride is 1:1; Behind 30 ℃ of reaction 1h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains titanium complex A with the petroleum ether residual solid afterwards.Title complex A is subsequent use with the fluid-tight of 50ml hexane.
Figure 2011104074674100002DEST_PATH_IMAGE010
Embodiment 2:
The example that is prepared as with two 2-hydroxyls-3-ethoxy-benzaldehyde (phenyl ether) benzene imines titanium complex.
(1) method of the two 2-hydroxyls of preparation-3-ethoxy-benzaldehyde (phenyl ether) benzene imine ligand: in the 250ml there-necked flask, add 40ml anhydrous methanol and 0.001mol4,4 '-diaminodiphenyl oxide is stirred to dissolving fully; In constant pressure funnel, add 10ml anhydrous methanol and 0.002mol2-hydroxyl-3-ethoxy-benzaldehyde; In the there-necked flask 4; 4 '-diaminodiphenyl oxide is stirred to fully after the dissolving the 2-hydroxyl-3-ethoxy-benzaldehyde solution slowly drops in the there-necked flask; Dropwise, reaction solution is behind 30 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part b, productive rate is 80%.
(2) preparation of titanium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part b, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 30 ℃ of reaction 3h; Insert 10ml methylene dichloride and titanium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and titanium tetrachloride is 1:1; Behind 50 ℃ of reaction 1h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains titanium complex B with the petroleum ether residual solid afterwards.Complex B is subsequent use with the fluid-tight of 50ml hexane.
Figure 2011104074674100002DEST_PATH_IMAGE012
Embodiment 3:
The example that is prepared as with two 2-hydroxyls-3-methoxyl group-5-tolyl aldehyde (phenyl ether) benzene imines titanium complex.
(1) method of the two 2-hydroxyls of preparation-3-methoxyl group-5-tolyl aldehyde (phenyl ether) benzene imine ligand: in the 250ml there-necked flask, add 40ml anhydrous methanol and 0.001mol4,4 '-diaminodiphenyl oxide is stirred to and is dissolved as colourless transparent solution fully; In constant pressure funnel, add 10ml anhydrous methanol dissolved 0.002mol2-hydroxyl-3-methoxyl group-5-tolyl aldehyde; With 2-hydroxyl-3-methoxyl group-5-tolyl aldehyde solution slowly drops in the there-necked flask; Dropwise, reaction solution is behind 40 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part c, productive rate is 76%.
(2) preparation of titanium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part c, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 60 ℃ of reaction 3h; Insert 10ml methylene dichloride and titanium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and titanium tetrachloride is 1:1; Behind 50 ℃ of reaction 3h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains titanium complex C with the petroleum ether residual solid afterwards.Title complex C is subsequent use with the fluid-tight of 50ml hexane.
Figure 2011104074674100002DEST_PATH_IMAGE014
Embodiment 4:
With the contract example that is prepared as of 4-anisole imines titanium complex of o-vanillin.
(1) prepares the contract method of 4-anisole imine ligand of o-vanillin: in the 250ml there-necked flask, add 80ml anhydrous methanol and 0.001mol4-anisidine, be stirred to fully and dissolve; In constant pressure funnel, add 10ml anhydrous methanol dissolved 0.001mol o-vanillin, o-vanillin solution is slowly dropped in the there-necked flask, dropwise, reaction solution is behind 40 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part d, productive rate is 79%.
(2) preparation of titanium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part d, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 60 ℃ of reaction 3h; Insert 10ml methylene dichloride and titanium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and titanium tetrachloride is 2:1; Behind 50 ℃ of reaction 3h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains titanium complex D with the petroleum ether residual solid afterwards.Title complex D is subsequent use with the fluid-tight of 50ml hexane.
Embodiment 5:
Contract 4 with two o-vanillins, 4 '-diamino-(2, the 6-di-isopropyl) phenyl ether benzene imines titanium complex be prepared as example
(1) the two o-vanillins of preparation contract 4, the method for 4 '-diamino-(2, the 6-di-isopropyl) phenyl ether part: in the 250ml there-necked flask, add 40ml anhydrous methanol and 0.001mol4,4 '-diamino-(2, the 6-di-isopropyl) phenyl ether is stirred to dissolving fully; In constant pressure funnel, add 10ml anhydrous methanol dissolved 0.002mol o-vanillin, o-vanillin solution is slowly dropped in the there-necked flask, dropwise, reaction solution is behind 40 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part e, productive rate is 82%.
(2) preparation of titanium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part e, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 30 ℃ of reaction 3h; Insert 10ml methylene dichloride and titanium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and titanium tetrachloride is 1:1; Behind 0 ℃ of reaction 3h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains titanium complex E with the petroleum ether residual solid afterwards.Title complex E is subsequent use with the fluid-tight of 50ml hexane.
Figure 2011104074674100002DEST_PATH_IMAGE018
Embodiment 6:
Contract 4 with two o-vanillins, 4 '-diamino-(2, the 6-dimethyl-) phenyl ether benzene imines titanium complex be prepared as example.
The two o-vanillins of preparation contract 4, the method for 4 '-diamino-(2, the 6-dimethyl-) phenyl ether benzene imine ligand: in the 250ml there-necked flask, add 40ml anhydrous methanol and 0.001mol4,4 '-diamino-(2, the 6-dimethyl-) phenyl ether is stirred to dissolving fully; In constant pressure funnel, add 10ml anhydrous methanol dissolved 0.002mol o-vanillin, o-vanillin solution is slowly dropped in the there-necked flask, dropwise, reaction solution is behind 40 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part f, productive rate is 70%.
The preparation of titanium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part f, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 30 ℃ of reaction 3h; Insert 10ml methylene dichloride and titanium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and titanium tetrachloride is 1:1; Behind-20 ℃ of reaction 3h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains titanium complex F with the petroleum ether residual solid afterwards.Title complex F is subsequent use with the fluid-tight of 50ml hexane.
Embodiment 7:
Contract 4 with two o-vanillins, 4 '-diamino-(2, the 6-di-t-butyl) phenyl ether benzene imines zirconium complex be prepared as example
(1) the two o-vanillins of preparation contract 4, the method for 4 '-diamino-(2, the 6-di-t-butyl) phenyl ether benzene imine ligand: in the 250ml there-necked flask, add 40ml anhydrous methanol and 0.001mol4,4 '-diamino-(2, the 6-di-t-butyl) phenyl ether is stirred to dissolving fully; In constant pressure funnel, add 10ml anhydrous methanol dissolved 0.002mol o-vanillin, o-vanillin solution is slowly dropped in the there-necked flask, dropwise, reaction solution is behind 40 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part g, productive rate is 72%.
(2) preparation of zirconium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part g, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 30 ℃ of reaction 3h; Insert 10ml methylene dichloride and zirconium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and zirconium tetrachloride is 1:1; Behind-20 ℃ of reaction 3h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains zirconium complex G with the petroleum ether residual solid afterwards.Title complex G is subsequent use with the fluid-tight of 50ml hexane.
Figure 2011104074674100002DEST_PATH_IMAGE022
Embodiment 8:
With the contract example that is prepared as of 4-phenetole imines titanium complex of o-vanillin.
(1) prepares the contract method of 4-phenetole imine ligand of o-vanillin: in the 250ml there-necked flask, add 80ml anhydrous methanol and 0.001mol4-phenetidine, be stirred to fully and dissolve; In constant pressure funnel, add 10ml anhydrous methanol dissolved 0.001mol o-vanillin, o-vanillin solution is slowly dropped in the there-necked flask, dropwise, reaction solution is behind 30 ℃ of reaction 4h, with 20ml anhydrous methanol washing three times; Washing afterreaction liquid moves into the characteristic bottle, filters, dry up and weigh part h, productive rate is 84%.
(2) preparation of zirconium complex: in the 250ml there-necked flask, add 40ml methylene dichloride and part h, the 0.0009mol n-Butyl Lithium is slowly added in the there-necked flask,, make the part salts solution at 30 ℃ of reaction 3h; Insert 10ml methylene dichloride and zirconium tetrachloride in the constant pressure funnel respectively then; The mol ratio of part salts solution and zirconium tetrachloride is 2:1; Behind 50 ℃ of reaction 5h; The decompressing and extracting dichloromethane solvent, resistates with methylene dichloride dissolve repeatedly, filtration, filtrate decompression drain solvent, obtains zirconium complex H with the petroleum ether residual solid afterwards.Title complex H is subsequent use with the fluid-tight of 50ml hexane.
Figure 2011104074674100002DEST_PATH_IMAGE024
Embodiment 9:
Vinyl polymerization:
Reaction kettle is replaced 3 times with nitrogen and hexane; Add the 1L hexane in the still; The hexane solution and the 3.44ml concentration that under agitation add the titanium complex A (0.46mmol) that 5ml embodiment 1 makes then successively are the triethyl aluminum of 1.33mol/ml, feed ethene when temperature reaches 50 ℃ in the question response still in the reaction kettle and begin polymerization, and ethylene pressure remains on about 1MPa in the polymerization process; The no hydrogen dividing potential drop stops the input of ethylene gas behind the 35min.Be cooled to and take out polymerisate and air-dry about 30 ℃.Product vacuum-drying 6h after air-dry gets 79.82g, and catalytic activity is 0.30*10 6GPE/ (molTi 4+H).Use one point method to record poly molecular weight and be 29.12*10 5Use GPC to record Vilaterm PD=11.60, MWD is shown in accompanying drawing 1.Using DSC to record the Vilaterm fusing point is 134.77 ℃.
Embodiment 10:
Vinyl polymerization
Reaction kettle is replaced 3 times with nitrogen and hexane; Add the 1L hexane in the still; The hexane solution and the 1.72ml concentration that under agitation add the titanium complex B (0.46mmol) that 5ml embodiment 2 makes then successively are the triethyl aluminum of 1.33mol/ml, feed ethene when temperature reaches 50 ℃ in the question response still in the reaction kettle and begin polymerization, and ethylene pressure remains on about 1MPa in the polymerization process; The no hydrogen dividing potential drop stops the input of ethylene gas behind the 40min.Be cooled to and take out polymerisate and air-dry about 30 ℃.Product vacuum-drying 6h after air-dry gets 20.30g, and catalytic activity is 0.07*10 6GPE/ (molTi 4+H).Recording poly molecular weight is 32.34*10 5, fusing point is 134.56 ℃.
Embodiment 11:
Vinyl polymerization:
Reaction kettle is replaced 3 times with nitrogen and hexane; Add the 1L hexane in the still; The hexane solution and the 1.47ml concentration that under agitation add the zirconium complex C (0.20mmol) that 5ml embodiment 3 makes then successively are the triethyl aluminum of 1.33mol/ml, feed ethene when temperature reaches 50 ℃ in the question response still in the reaction kettle and begin polymerization, and ethylene pressure remains on about 1MPa in the polymerization process; Hydrogen partial pressure is 0.1MPa, stops the input of ethylene gas behind the 15min.Be cooled to and take out polymerisate and air-dry about 30 ℃.Product vacuum-drying 6h after air-dry gets 90.30g, and catalytic activity is 1.86*10 6GPE/ (molZr 4+H).Recording poly molecular weight is 16.32*10 5, fusing point is 133.56 ℃.
Embodiment 12:
Vinyl polymerization:
Reaction kettle is replaced 3 times with nitrogen and hexane; Add the 1L hexane in the still; The hexane solution and the 5.21ml concentration that under agitation add the titanium complex D (0.35mmol) that 5ml embodiment 4 makes then successively are the triethyl aluminum of 1.33mol/ml, feed ethene when temperature reaches 50 ℃ in the question response still in the reaction kettle and begin polymerization, and ethylene pressure remains on about 1MPa in the polymerization process; The no hydrogen dividing potential drop stops the input of ethylene gas behind the 10min.Be cooled to and take out polymerisate and air-dry about 30 ℃.Product vacuum-drying 6h after air-dry gets 54.68g, and catalytic activity is 0.95*10 6GPE/ (molTi 4+H).Recording poly molecular weight is 13.43*10 5, fusing point is 134.27 ℃.
Embodiment 13:
Vinyl polymerization:
Reaction kettle is replaced 3 times with nitrogen and hexane; Add the 1L hexane in the still; The hexane solution and the 3.44ml concentration that under agitation add the titanium complex E (0.35mmol) that 5ml embodiment 5 makes then successively are the trimethylaluminium of 1.33mol/ml, feed ethene when temperature reaches 50 ℃ in the question response still in the reaction kettle and begin polymerization, and ethylene pressure remains on about 1MPa in the polymerization process; Hydrogen partial pressure is 0.15MPa, stops the input of ethylene gas behind the 10min.Be cooled to and take out polymerisate and air-dry about 30 ℃.Product vacuum-drying 6h after air-dry gets 54.68g, and catalytic activity is 0.72*10 6GPE/ (molTi 4+H).Recording poly molecular weight is 13.43*10 5, fusing point is 133.75 ℃.
Embodiment 14:
Vinyl polymerization:
Reaction kettle is replaced 3 times with nitrogen and hexane; Add the 1L hexane in the still; The hexane solution and the 5.21ml concentration that under agitation add 5ml embodiment 5 titanium complex E (0.35mmol) then successively are the trimethylaluminium of 1.33mol/ml, feed ethene when temperature reaches 50 ℃ in the question response still in the reaction kettle and begin polymerization, and ethylene pressure remains on about 1MPa in the polymerization process; Hydrogen partial pressure is 0.15MPa, stops the input of ethylene gas behind the 10min.Be cooled to and take out polymerisate and air-dry about 30 ℃.Product vacuum-drying 6h after air-dry gets 54.68g, and catalytic activity is 0.85*10 6GPE/ (molTi 4+H).Recording poly molecular weight is 13.43*10 5, fusing point is 133.63 ℃.
Embodiment 15:
Reaction kettle is replaced 3 times with nitrogen and hexane; Add the 1L hexane in the still; The hexane solution and the 5.21ml concentration that under agitation add 5ml embodiment 7 zirconium complex G (0.35mmol) then successively are the triisobutyl aluminium of 1.33mol/ml, feed ethene when temperature reaches 50 ℃ in the question response still in the reaction kettle and begin polymerization, and ethylene pressure remains on about 1MPa in the polymerization process; Hydrogen partial pressure is 0.2MPa, stops the input of ethylene gas behind the 10min.Be cooled to and take out polymerisate and air-dry about 30 ℃.Product vacuum-drying 6h after air-dry gets 54.68g, and catalytic activity is 0.81*10 6GPE/ (molTi 4+H).Recording poly molecular weight is 13.43*10 5, fusing point is 133.35 ℃.
Embodiment 16:
Triethyl aluminum described in the foregoing description 9-12 can be substituted by triisobutyl aluminium, three n-butylaluminum, tri-n-hexyl aluminum or the tri-n-octylaluminium of equivalent, and other method is identical with embodiment 9-15.

Claims (10)

1. Schiff's base transition metal complex that contains alkoxy grp is characterized in that structure is following:
Figure 300363DEST_PATH_IMAGE001
X, Y respectively independently are selected from alkoxyl group, phenoxy, substituent phenoxy in the formula; R 1~R 7Each independently is selected from hydrogen, C 1~C 6Alkyl, sec.-propyl, the tertiary butyl, phenyl; M is a transition metal.
2. a kind of Schiff's base transition metal complex that contains alkoxy grp according to claim 1 is characterized in that if Y is amino substituent phenoxy, then structural formula such as figure below, wherein R 8Be the substituting group on the phenyl ring, independently be selected from hydrogen, C 1~C 6Alkyl, sec.-propyl, the tertiary butyl;
Figure 667891DEST_PATH_IMAGE002
3. a kind of Schiff's base transition metal complex that contains alkoxy grp according to claim 2, the substituting group that it is characterized in that substituent phenoxy is C 1~C 6Alkyl, sec.-propyl, the tertiary butyl or amino.
4. a kind of Schiff's base transition metal complex that contains alkoxy grp according to claim 1 is characterized in that M is titanium or zirconium; Alkoxyl group is a methoxy or ethoxy.
5. the described preparation method who contains the Schiff's base transition metal complex of alkoxy grp of claim 1 is characterized in that it comprises the steps:
(1) under the anhydrous and oxygen-free condition, in the anhydrous methanol solvent,, under 20~60 ℃, carry out condensation reaction with substituted salicylic aldehydes and aminated compounds, remove by filter the anhydrous methanol solvent, the solid drying that obtains is promptly got schiff base ligand;
(2) under the anhydrous and oxygen-free condition, in dichloromethane solvent, schiff base ligand and the alkali metal cpd that makes above-mentioned preparation earlier-40~60 ℃ of reactions, makes the part salts solution by the mol ratio of about 1:1; Part salts solution and MCl then 4React-40~100 ℃ of mol ratios by 1:1 or 2:1, the decompressing and extracting dichloromethane solvent, resistates dissolves with methylene dichloride, and filtration, filtrate decompression are drained solvent, obtain schiff bases complex with the petroleum ether residual solid afterwards.
6. according to the said a kind of preparation method who contains the Schiff's base transition metal complex of alkoxy grp of claim 5, it is characterized in that alkali metal cpd is butyllithium or sodium hydride in the step (2); MCl 4Transition metal halide is titanium tetrachloride or zirconium tetrachloride.
7. described Schiff's base transition metal complex the quoting in the catalyzed ethylene polymerization reaction that contains alkoxy grp of a claim 1.
8. the application that contains the Schiff's base transition metal complex of alkoxy grp according to claim 7; It is characterized in that it specifically being under the effect of promotor aluminum alkyl catalyst; This Schiff's base transition metal complex that contains alkoxy grp has catalytic performance in the catalyzed ethylene polymerization reaction; Polyreaction is solvent with the hexane, and aluminium titanium mol ratio (n (Al): n (Ti)) is 1~1000:1, and the catalytic activity of this catalyzer can reach 10 6Level, polymkeric substance is a linear polyethylene, its viscosity-average molecular weight is the highest to be 32.34*10 5, melting range is 133~135 ℃.
9. the application that contains the Schiff's base transition metal complex of alkoxy grp according to claim 8 is characterized in that described promotor aluminum alkyls is trimethylaluminium, triethyl aluminum, triisobutyl aluminium, three n-butylaluminum, tri-n-hexyl aluminum or tri-n-octylaluminium.
10. the application that contains the Schiff's base transition metal complex of alkoxy grp according to claim 8, ethylene pressure is about 1MPa when it is characterized in that polymerization, hydrogen pressure is 0~0.5 MPa.
CN2011104074674A 2011-12-09 2011-12-09 Schiff base transition metal complex containing alkoxy groups, and preparation method and application thereof Pending CN102516291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104074674A CN102516291A (en) 2011-12-09 2011-12-09 Schiff base transition metal complex containing alkoxy groups, and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104074674A CN102516291A (en) 2011-12-09 2011-12-09 Schiff base transition metal complex containing alkoxy groups, and preparation method and application thereof

Publications (1)

Publication Number Publication Date
CN102516291A true CN102516291A (en) 2012-06-27

Family

ID=46287408

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011104074674A Pending CN102516291A (en) 2011-12-09 2011-12-09 Schiff base transition metal complex containing alkoxy groups, and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN102516291A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936301A (en) * 2012-11-07 2013-02-20 复旦大学 Tridentate Schiff base titanium-based olefin polymerization catalyst and preparation method and application thereof
CN107501444A (en) * 2017-09-28 2017-12-22 上海化工研究院有限公司 Support type benzene oxygen imines polyolefin catalyst and preparation method and application
WO2019048842A1 (en) * 2017-09-05 2019-03-14 Scg Chemicals Co., Ltd. Catalysts suitable for the ring-opening polymerisation of cyclic esters and cyclic amides
WO2019048843A3 (en) * 2017-09-05 2019-04-25 Scg Chemicals Co., Ltd. Polymerisation of olefins
CN110054211A (en) * 2018-05-22 2019-07-26 武汉工程大学 A method of using chinese cymbidium element alloy metal complex as precursor synthesis porous oxide microballoon

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1199052A (en) * 1997-04-25 1998-11-18 三井化学株式会社 Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and alpha-olefin/conjugated diene copolymers
CN1651472A (en) * 2004-12-24 2005-08-10 中国科学院长春应用化学研究所 IVB family compound of schiff base containing olefine oxo and its use in ethylene polymerization
JP2006265541A (en) * 2005-02-25 2006-10-05 Mitsui Chemicals Inc Method for polymerizing olefin and polymer obtained thereby
CN1995044A (en) * 2006-12-28 2007-07-11 沈阳工业大学 Tetradentate IV B transition metal catalyst, preparation method and uses
US20090234073A1 (en) * 2005-05-11 2009-09-17 Mitsui Chemicals, Inc. Alpha-Olefin/non-conjugated cyclic polyene copolymers, production processes thereof, and crosslinkable compositions including the copolymer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1199052A (en) * 1997-04-25 1998-11-18 三井化学株式会社 Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and alpha-olefin/conjugated diene copolymers
CN1651472A (en) * 2004-12-24 2005-08-10 中国科学院长春应用化学研究所 IVB family compound of schiff base containing olefine oxo and its use in ethylene polymerization
JP2006265541A (en) * 2005-02-25 2006-10-05 Mitsui Chemicals Inc Method for polymerizing olefin and polymer obtained thereby
US20090234073A1 (en) * 2005-05-11 2009-09-17 Mitsui Chemicals, Inc. Alpha-Olefin/non-conjugated cyclic polyene copolymers, production processes thereof, and crosslinkable compositions including the copolymer
CN1995044A (en) * 2006-12-28 2007-07-11 沈阳工业大学 Tetradentate IV B transition metal catalyst, preparation method and uses

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
G. W. THEAKER等,: "Zirconium-Catalyzed Polymerization of a Styrene: Catalyst Reactivation Mechanisms Using Alkenes and Dihydrogen", 《MACROMOLECULES》 *
王玉现等,: "双邻香草醛(二苯醚)苯亚胺钛络合物的合成及其乙烯聚合", 《2011中国功能材料科技与产业高层论坛论文集》 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936301A (en) * 2012-11-07 2013-02-20 复旦大学 Tridentate Schiff base titanium-based olefin polymerization catalyst and preparation method and application thereof
CN102936301B (en) * 2012-11-07 2015-04-22 复旦大学 Tridentate Schiff base titanium-based olefin polymerization catalyst and preparation method and application thereof
WO2019048842A1 (en) * 2017-09-05 2019-03-14 Scg Chemicals Co., Ltd. Catalysts suitable for the ring-opening polymerisation of cyclic esters and cyclic amides
WO2019048843A3 (en) * 2017-09-05 2019-04-25 Scg Chemicals Co., Ltd. Polymerisation of olefins
CN111278559A (en) * 2017-09-05 2020-06-12 Scg化学有限公司 Catalyst suitable for ring-opening polymerization of cyclic esters and cyclic amides
CN111655743A (en) * 2017-09-05 2020-09-11 Scg化学有限公司 Polymerization of olefins
JP2020532583A (en) * 2017-09-05 2020-11-12 エスシージー ケミカルズ カンパニー,リミテッド Suitable catalysts for ring-opening polymerization of cyclic esters and cyclic amides
CN107501444A (en) * 2017-09-28 2017-12-22 上海化工研究院有限公司 Support type benzene oxygen imines polyolefin catalyst and preparation method and application
CN107501444B (en) * 2017-09-28 2020-09-11 上海化工研究院有限公司 Supported phenoxy imine polyolefin catalyst, preparation method and application
CN110054211A (en) * 2018-05-22 2019-07-26 武汉工程大学 A method of using chinese cymbidium element alloy metal complex as precursor synthesis porous oxide microballoon
CN110054211B (en) * 2018-05-22 2022-05-10 武汉工程大学 Method for synthesizing porous oxide microspheres by taking vanillin alloy complex as precursor

Similar Documents

Publication Publication Date Title
CN104394986B (en) Phosphinyl guanidine compounds, metal salt complexes, catalyst systems, and their use to oligomerize or polymerize olefins
CN100371075C (en) Catalyst systems for ethylene oligomerisation to linear alpha olefins
CN102786435B (en) Catalysis systems for preparing highly branched alkane by using olefin
CN102516291A (en) Schiff base transition metal complex containing alkoxy groups, and preparation method and application thereof
JP6832123B2 (en) Ligand-based chromium catalysts and applications that catalyze ethylene oligomerization
CA2517362A1 (en) Hexadentate ligand and catalytic complex therewith
CN100528837C (en) Double-core nickel series compounds, preparation method and application thereof
EP1904509B1 (en) Diimine metal complexes, synthesis, and use in oligomerization and polymerization
KR101760821B1 (en) Catalyst composition for oligomerization of ethylene and processes of oligomerization
CN109134302A (en) A kind of acenaphthene annulus has the application of the alpha-diimine and its derivative complex of hydroxyl in olefin polymerization
CN109957049B (en) Asymmetric (alpha-diimine) nickel olefin catalyst and preparation method and application thereof
CN100546990C (en) A kind of Tetradentate IV B transition metal catalyst, preparation method and application thereof
CN109180845A (en) A kind of double-core rhodium metal catalyst, preparation method and application
CN101391979A (en) Unsymmetrical bis(imino)pyridines iron and cobalt complexes containing halogen, preparation method and use
CN102399119A (en) Method for catalyzing ethylene oligomerization by using butyryl-substituted 1,10-phenanthroline complex
JP2003527403A (en) Olefin polymerization
CN106397263A (en) Ligand compound and preparation thereof, and complex containing ligand compound
CN101041610B (en) Method for preparing alpha-olefin by ethane oligomerisation
CN105384657A (en) Catalyst ligand, catalyst and preparation methods and application thereof
Long et al. Synthesis and characterization of niii and pdii complexes bearing n, n, s tridentate ligands and their catalytic properties for norbornene polymerization
CN105646599A (en) Pyridinocycloheptane imine nickel complex catalyst, preparation method and application thereof
CN101260122B (en) 2-(6'-iminopyridyl)quinoxaline metal complex compound and its preparing method and application
CN105218590B (en) Biphenyl bridging dinuclear iron complex and preparation method thereof and application method
EP2268651B1 (en) Sterically emcumbered bidentate and tridentate naphthoxy-imine metallic complexes
CN109957050B (en) Asymmetric (alpha-diimine) nickel olefin catalyst and preparation method and application thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120627