WO2012077289A1 - メソ型及びラセミ型メタロセン錯体の製造方法 - Google Patents
メソ型及びラセミ型メタロセン錯体の製造方法 Download PDFInfo
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- WO2012077289A1 WO2012077289A1 PCT/JP2011/006525 JP2011006525W WO2012077289A1 WO 2012077289 A1 WO2012077289 A1 WO 2012077289A1 JP 2011006525 W JP2011006525 W JP 2011006525W WO 2012077289 A1 WO2012077289 A1 WO 2012077289A1
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- XOJVVFBFDXDTEG-UHFFFAOYSA-N pristane Chemical compound CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 title abstract description 10
- 230000008569 process Effects 0.000 title abstract description 4
- 239000003446 ligand Substances 0.000 claims abstract description 59
- 150000001875 compounds Chemical class 0.000 claims abstract description 39
- 230000000737 periodic effect Effects 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 19
- 125000004429 atom Chemical group 0.000 claims abstract description 16
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 15
- 229910052710 silicon Inorganic materials 0.000 claims description 15
- 239000010703 silicon Substances 0.000 claims description 13
- JZZIHCLFHIXETF-UHFFFAOYSA-N dimethylsilicon Chemical group C[Si]C JZZIHCLFHIXETF-UHFFFAOYSA-N 0.000 claims description 8
- 125000005842 heteroatom Chemical group 0.000 claims description 8
- 229910052800 carbon group element Inorganic materials 0.000 claims description 7
- UTUAUBOPWUPBCH-UHFFFAOYSA-N dimethylsilylidene(dimethyl)silane Chemical compound C[Si](C)=[Si](C)C UTUAUBOPWUPBCH-UHFFFAOYSA-N 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 125000005843 halogen group Chemical group 0.000 claims description 6
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 2
- 150000002430 hydrocarbons Chemical group 0.000 abstract description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 36
- -1 alkyl lithium Chemical compound 0.000 description 35
- 238000006243 chemical reaction Methods 0.000 description 32
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 30
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 18
- 239000011541 reaction mixture Substances 0.000 description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 13
- 238000004132 cross linking Methods 0.000 description 11
- 239000006228 supernatant Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 description 7
- 230000006340 racemization Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- MZRVEZGGRBJDDB-UHFFFAOYSA-N n-Butyllithium Substances [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 125000002524 organometallic group Chemical group 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 125000003808 silyl group Chemical class [H][Si]([H])([H])[*] 0.000 description 5
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 5
- 229910007926 ZrCl Inorganic materials 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 0 *C1=C(*C2=CC3C(*)=C(*)C(*)=C(*)C3=C2*)C=C2C(*)=C(*)C(*)=C(*)C12 Chemical compound *C1=C(*C2=CC3C(*)=C(*)C(*)=C(*)C3=C2*)C=C2C(*)=C(*)C(*)=C(*)C12 0.000 description 2
- PAAZPARNPHGIKF-UHFFFAOYSA-N 1,2-dibromoethane Chemical compound BrCCBr PAAZPARNPHGIKF-UHFFFAOYSA-N 0.000 description 2
- WGLLSSPDPJPLOR-UHFFFAOYSA-N 2,3-dimethylbut-2-ene Chemical group CC(C)=C(C)C WGLLSSPDPJPLOR-UHFFFAOYSA-N 0.000 description 2
- CCUYEVNCRQDQRF-UHFFFAOYSA-N 2-bromo-1h-indene Chemical compound C1=CC=C2CC(Br)=CC2=C1 CCUYEVNCRQDQRF-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000004104 aryloxy group Chemical group 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- JZALIDSFNICAQX-UHFFFAOYSA-N dichloro-methyl-trimethylsilylsilane Chemical compound C[Si](C)(C)[Si](C)(Cl)Cl JZALIDSFNICAQX-UHFFFAOYSA-N 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 125000004361 3,4,5-trifluorophenyl group Chemical group [H]C1=C(F)C(F)=C(F)C([H])=C1* 0.000 description 1
- 125000004211 3,5-difluorophenyl group Chemical group [H]C1=C(F)C([H])=C(*)C([H])=C1F 0.000 description 1
- 125000001255 4-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1F 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical group [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- SFAZXBAPWCPIER-UHFFFAOYSA-N chloro-[chloro(dimethyl)silyl]-dimethylsilane Chemical compound C[Si](C)(Cl)[Si](C)(C)Cl SFAZXBAPWCPIER-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910021480 group 4 element Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical group C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 125000000654 isopropylidene group Chemical group C(C)(C)=* 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 description 1
- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003541 multi-stage reaction Methods 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000000538 pentafluorophenyl group Chemical group FC1=C(F)C(F)=C(*)C(F)=C1F 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004344 phenylpropyl group Chemical group 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 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
- C07F17/00—Metallocenes
-
- 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
-
- 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
- C07F7/0801—General processes
-
- 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
- C07F7/0803—Compounds with Si-C or Si-Si linkages
-
- 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
- C07F7/0803—Compounds with Si-C or Si-Si linkages
- C07F7/0805—Compounds with Si-C or Si-Si linkages comprising only Si, C or H atoms
- C07F7/0807—Compounds with Si-C or Si-Si linkages comprising only Si, C or H atoms comprising Si as a ring atom
-
- 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
- C07F7/0803—Compounds with Si-C or Si-Si linkages
- C07F7/0825—Preparations of compounds not comprising Si-Si or Si-cyano linkages
- C07F7/0827—Syntheses with formation of a Si-C bond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/72—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from metals not provided for in group C08F4/44
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/943—Polymerization with metallocene catalysts
Definitions
- the present invention relates to meso-type and racemic bi-bridged ligands and methods for producing these bi-bridged metallocene complexes.
- Patent Documents 1 and 2 Non-Patent Documents 1 and 2.
- the symmetry of metallocene complexes (racemic (C2 symmetry), mesotype (Cs symmetry)) has a great influence on polymerization performance, so synthesis studies and evaluation of polymerization performance of metallocene complexes with each symmetry were conducted.
- Non-Patent Documents 3 and 4 Non-Patent Documents 3 and 4.
- a single bridged metallocene complex a mixture of racemic and meso forms is obtained at the time of synthesis of the complex. Therefore, such as separation by recrystallization, use of special raw materials, use of auxiliary reagents in the presence of light, etc.
- Various processes that are extremely disadvantageous are required (Patent Documents 3 to 5).
- Patent Documents 6 and 7 disclose a method for producing a bi-bridged metallocene complex having a silicon atom-containing cross-linking group, and a characteristic polymerization performance has been found.
- a bi-bridged metallocene complex having a silicon atom-containing bridging group in addition to the desired meso-type ligand, another symmetric ligand (racemic type) may be mixed as an isomer. is there. Therefore, in order to obtain the target symmetrical bi-bridged metallocene complex using this raw material, it is necessary to perform washing and recrystallization using a large amount of an organic solvent. Industrial production of the complex was not practical because of the problem of a significant drop in rate.
- Non-Patent Documents 6 to 8 report on the isomerization reaction of a bibridged ligand having a silicon-containing group. From the above, a method for selectively producing a meso form of a bi-bridged ligand having a silicon-containing group in a bridge has been sought, but an effective methodology has not yet been found.
- racemic bibridged metallocene complexes reported in the past have a low yield, and thus have a drawback in that the catalyst cost increases when polyolefins are produced industrially.
- Bercaw et al Synthesized a Cp-based racemic dimethylsilylene bibridged metallocene complex. Since the starting bibridged ligand is a mixture of a meso form and a racemate, the racemate is separated by washing. ing. For this reason, the yield of a bi-bridged ligand is as small as about 30% (non-patent document 9).
- Patent Documents 8 and 9 examine a bibridged metallocene complex having an indene skeleton, and unlike the above examples, a highly pure racemic bibridged ligand containing no meso form is obtained. The rate is as low as 30-40%.
- a bi-bridged ligand is produced by coupling the raw material Ind-SiMe 2 Cl. However, since this reaction is a complex reaction that gives products other than the target product, the yield is high. It is considered small.
- JP 2004-2310 A JP 2004-352707 A Special table 2007-514684 gazette Japanese National Patent Publication No. 11-508596 Japanese National Patent Publication No. 11-508597 JP 2000-95820 A JP 2002-308893 A JP 2000-256411 A International Publication No. 2002/024714 Pamphlet
- An object of the present invention is to provide a method for selectively producing a meso-type bibridged ligand or a racemic bibridged ligand.
- An object of the present invention is to provide a method for selectively producing a meso type bi-bridged metallocene complex or a racemic bridged metallocene complex.
- the following method for producing a meso-type bibridged ligand is provided. 1. Contacting the compound of formula (1) with the compound of formula (2) at ⁇ 25 ° C. or lower, A method for producing an anionized meso-type bibridged ligand of formula (3), wherein an anionizing agent is added within 5 hours from the contact.
- R 1 to R 10 are each a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group or a heteroatom-containing group, and A and A ′ are each a group 14 element of the periodic table
- a bridging group containing an atom M and M ′ are each an atom of a group 1 or group 2 element of the periodic table
- n is 2 when M or M ′ is a group 1 element of the periodic table
- M or M ′ is a group 2 element in the periodic table, it is 1.
- X is a halogen.
- R 1 to R 10 are each a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group or a heteroatom-containing group, and A and A ′ are each a group 14 element of the periodic table
- a bridging group containing an atom M and M ′ are each an atom of a group 1 or group 2 element of the periodic table, n is 2 when M or M ′ is a group 1 element of the periodic table, When M or M ′ is a group 2 element in the periodic table, it is 1.
- X is a halogen.
- 3. The production method according to 1 or 2, wherein A is dimethylsilylene or tetramethyldisilene, and A ′ is dimethylsilylene or tetramethyldisilene.
- a method for producing a bibridged metallocene complex wherein a bibridged metallocene complex is produced using the anionized meso type bibridged ligand or the anionized racemic bibridged ligand.
- a meso type bibridged ligand or a racemic type bibridged ligand can be selectively produced.
- a meso type bibridged metallocene complex or a racemic type bibridged metallocene complex can be selectively produced.
- the compound of the formula (1) and the compound of the formula (2) are contacted at ⁇ 25 ° C. or less, and the anionizing agent is added within 5 hours from the contact.
- mold bibridged ligand represented by Formula (3) is obtained with high selectivity (for example, 90% or more).
- R 1 to R 10 are each a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group or a heteroatom-containing group, and A and A ′ are each a group 14 element of the periodic table
- a bridging group containing an atom M and M ′ are each an atom of a Group 1 or 2 element of the periodic table
- n is 2 when M or M ′ is a Group 1 element of the Periodic Table
- X is a halogen.
- R 3 to R 10 may each form a ring with an adjacent group.
- the contact of the compounds of the formulas (1) and (2) is carried out at -25 ° C. If this reaction is carried out at a higher temperature, the meso-type bibridged ligand produced by contact may be changed to a racemic bibridged ligand via an isomerization reaction. Racemization can be suppressed by controlling the reaction temperature of this reaction to a low temperature. It is preferable to maintain a temperature of ⁇ 25 ° C. or lower from the contact until the anionizing agent is charged.
- reaction temperature is preferably ⁇ 30 ° C. or lower, more preferably ⁇ 35 ° C. or lower.
- the reaction temperature is too low, the cross-linking reaction itself becomes slow.
- the contact between the compound of formula (1) and the compound of formula (2) may be carried out, for example, in an organic solvent, and examples of the organic solvent include tetrahydrofuran, diethyl ether, 1,4-dioxane and the like.
- the anionizing agent while maintaining the low temperature conditions ( ⁇ 25 ° C. or lower) during the reaction without performing the isolation operation.
- the racemization reaction is stopped, and a high-purity meso-type bibridged ligand is obtained as an anion body.
- the anionizing agent is added within 5 hours from the contact of the compounds of the formulas (1) and (2). By adding the anionizing agent within 5 hours, the racemization reaction over time can be minimized, so that the selectivity can be increased.
- the time until the anionizing agent is added is preferably shorter, more preferably within 4 hours. If it is too short, there is a possibility that the crosslinking formation reaction does not proceed sufficiently. Therefore, it is preferable to add after reacting for 10 minutes or more after contact.
- the anionizing agent is a compound having a function of extracting protons of the compounds (1) and (2).
- Examples of the anionizing agent include alkyl lithium, specifically normal butyl lithium, secondary butyl lithium, tertiary butyl lithium, lithium diisopropylamide, and the like. From the viewpoint of ease of handling and reactivity, normal butyl is used. Lithium is preferred.
- the compound of formula (1): the anionizing agent is added so as to be 1: 2.2.
- examples of the hydrocarbon group having 1 to 20 carbon atoms include methyl groups, ethyl groups, propyl groups, butyl groups, hexyl groups, cyclohexyl groups, octyl groups and other alkyl groups, vinyl Group, propenyl group, alkenyl group such as cyclohexenyl group, arylalkyl group such as benzyl group, phenylethyl group, phenylpropyl group, phenyl group, tolyl group, dimethylphenyl group, trimethylphenyl group, ethylphenyl group, propylphenyl group And aryl groups such as a biphenyl group, a naphthyl group, a methylnaphthyl group, an anthracenyl group, and a phenanthenyl group.
- the silicon-containing group is preferably a silicon-containing group having 1 to 20 carbon atoms, specifically, monohydrocarbon-substituted silyl groups such as methylsilyl group and phenylsilyl group; dihydrocarbon-substituted groups such as dimethylsilyl group and diphenylsilyl group.
- Silyl group trimethylsilyl group, triethylsilyl group, tripropylsilyl group, dimethyl (t-butyl) silyl group, tricyclohexylsilyl group, triphenylsilyl group, dimethylphenylsilyl group, methyldiphenylsilyl group, tolylsilylsilyl group, Trihydrocarbon-substituted silyl groups such as naphthylsilyl group; Hydrocarbon-substituted silyl ether groups such as trimethylsilyl ether group; Silicon-substituted alkyl groups such as trimethylsilylmethyl group, bis (trimethylsilyl) methyl group, and phenyldimethylsilylethyl group; Trimethylsilylphenyl group Etc.
- a substituted aryl group or a dimethylhydrosilyl group, methyl dihydro silyl group Containing a substituted aryl group or a dimethylhydrosilyl group, methyl dihydro silyl group.
- a silicon-substituted alkyl group is preferable, and a trimethylsilylmethyl group, a phenyldimethylsilylethyl group, and the like are particularly preferable.
- heteroatom-containing group examples include a heteroatom-containing hydrocarbon group.
- the heteroatom-containing hydrocarbon group includes p-fluorophenyl group, 3,5-difluorophenyl group, pentachlorophenyl group, 3,4,5-trifluorophenyl group, pentafluorophenyl group, 3,5-bis (tri Fluoromethyl) phenyl group, bis (trimethylsilyl) methyl group, and the like.
- a and A ′ are each a bridging group containing an atom of a group 14 element of the periodic table, and carbon, silicon, germanium and tin are preferable as the group 14 element of the periodic table.
- Examples of the cross-linking group include groups represented by the following formulas.
- E is carbon, silicon, tin, or germanium.
- R 11 and R 12 are each a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, or a silicon-containing group having 1 to 20 carbon atoms. And they may be the same as or different from each other, and may be bonded to each other to form a ring.
- m is an integer of 1 to 4, preferably 1 or 2. When m is 2 or more, the plurality of E, R 11 and R 12 may be the same or different.
- R 11 and R 12 are each preferably a hydrocarbon group having 1 to 6 carbon atoms, more preferably a hydrocarbon group having 1 to 4 carbon atoms, and still more preferably a methyl group.
- Examples of the hydrocarbon group having 1 to 20 carbon atoms and the silicon-containing group having 1 to 20 carbon atoms are the same as those exemplified above.
- Examples of the alkoxy group having 1 to 20 carbon atoms and the aryloxy group having 6 to 20 carbon atoms include methoxy group, ethoxy group, various propoxy groups, various butoxy groups, various pentoxy groups, various hexoxy groups, various octoxy groups, phenoxy Group, methylphenoxy group, naphthoxy group and the like.
- the bridging group is preferably —Si (R 13 ) 2 —.
- R 13 is each a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms.
- a and A ′ include methylene, ethylene, ethylidene, (tetramethyl) ethylene, isopropylidene, cyclohexylidene, 1,2-cyclohexylene, dimethylsilylene, methylphenylsilylene, diphenylsilylene, tetramethyldisylylene.
- methylene (CH 2 ), isopropylidene [(CH 3 ) 2 C ], ethylene (CH 2 CH 2), (tetramethyl) ethylene [(CH 3) 2 C (CH 3) 2 C], dimethylsilylene [(CH 3) 2 Si], tetramethyl silylene [(CH 3) 2 Si (CH 3 ) 2 Si], diphenylsilylene [(C 6 H 5 ) 2 Si] is preferable from the viewpoint of ease of synthesis and catalyst yield.
- A is dimethylsilylene or tetramethyldisilene and A ′ is a combination of dimethylsilylene or tetramethyldisilene.
- M and M ′ are atoms of Group 1 or 2 elements of the Periodic Table, and lithium, sodium, and magnesium atoms are preferable from the viewpoint of ease of handling and reactivity.
- n 1 or 2
- M has a charge of +1, that is, when M is, for example, Li, Na, K, n is 1, and when it is +2, that is, when M is, for example, Mg or Ca, n is 2. is there.
- X is a halogen atom, that is, a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, and a chlorine atom or a bromine atom is preferable from the viewpoint of ease of handling and reactivity.
- the compounds of the above formulas (1) and (2) are brought into contact at 45 ° C. or more, and an anionizing agent is added after 1 hour or more has passed since the contact.
- an anionized racemic bibridged ligand can be obtained with high selectivity (for example, 90% or more, preferably 100%).
- R 1 to R 10 , A and n are the same as the above formula (1)
- a ′ is the same as formula (2)
- M ′ is the same as the formula (3).
- the reaction product of the compounds of formulas (1) and (2) may or may not be isolated. It is preferable not to isolate from the viewpoint of work efficiency. By omitting the isolation operation, the product loss due to the isolation operation can be eliminated and one step can be omitted, so that the manufacturing cost can be suppressed.
- the time until the anionizing agent is added is more preferably one and a half hours.
- the temperature condition at the time of adding the anionizing agent may be either keeping the reaction temperature as it is or a low temperature condition of about ⁇ 30 ° C.
- the compounding ratio of the compound of formula (1) and the compound of formula (2), and the organic solvent used for contacting the compound of formula (1) and the compound of formula (2) are the same as in the first production method. .
- the anionizing agent that can be used and the amount used thereof are also the same as in the first production method.
- the above-mentioned bibridged ligand (3) or (4) and the formula ZY p + 2 (wherein Z is an atom of a metal element of Groups 3 to 10 of the periodic table or a lanthanoid series, and Y is an atom of a halogen element) And p + 2 is the valence of Z.)
- the meso-type bibridged metallocene complex (5) or racemic bibridged metallocene complex (6) is obtained by reacting the compound represented by Since the high-purity bibridged ligand (3) or (4) is used, a high-purity (for example, 90% or more, preferably 100%) bibridged metallocene complex can be obtained.
- R 1 to R 10 , A, and A ′ are the same as those in the formulas (3) and (4), respectively.
- Z, Y, and p are as described above.
- Z examples include titanium, zirconium, hafnium, yttrium, vanadium, chromium, manganese, nickel, cobalt, palladium, and lanthanoid metals.
- group 4 elements such as titanium and zirconium And hafnium are preferred.
- Y is preferably a chlorine atom.
- Examples of the compound represented by ZY p + 2 include zirconium tetrachloride.
- Example 1 (1) The Ind-SiMe 2 -Ind Li salt (0.50 g, 1.3 mmol) obtained in Production Example 1 was dissolved in THF (40 ml), cooled to ⁇ 30 ° C., and dichlorodimethylsilane ( 0.16 ml, 1.3 mmol) was added dropwise and then the reaction mixture was allowed to stir at ⁇ 30 ° C. for 240 minutes. Thereafter, n-BuLi (2.6M, 1.1 ml, 2.8 mmol) was added dropwise at the same temperature.
- Example 2 (1) The Li salt (0.500 g, 1.33 mmol) of Ind-SiMe 2 -Ind obtained in Production Example 1 was dissolved in THF (10 ml) and cooled to ⁇ 30 ° C. Dichlorotetramethyldisilane (0.25 ml, 1.33 mmol) was added dropwise thereto and stirred for 240 minutes while maintaining -30 ° C. Thereafter, n-BuLi (2.6M, 1.1 ml, 2.8 mmol) was added dropwise at the same temperature.
- Example 3 (1) The Ind-SiMe 2 SiMe 2 -Ind Li salt (2.0 g, 5.4 mmol) obtained in Production Example 2 was dissolved in THF (30 ml) and cooled to ⁇ 30 ° C. Dichlorodimethylsilane (0.71 ml, 5.9 mmol) was added dropwise thereto and stirred for 240 minutes while maintaining -30 ° C. Thereafter, n-BuLi (2.6 M, 4.5 ml, 12 mmol) was added dropwise at the same temperature.
- Example 4 (1) The Ind-SiMe 2 SiMe 2 -Ind Li salt (0.500 g, 1.33 mmol) obtained in Production Example 2 was dissolved in THF (10 ml) and cooled to ⁇ 30 ° C. Dichlorotetramethyldisilane (0.25 ml, 1.33 mmol) was added dropwise thereto and stirred for 240 minutes while maintaining -30 ° C. Thereafter, n-BuLi (2.6M, 1.1 ml, 2.8 mmol) was added dropwise at the same temperature.
- Example 5 In Example 1 (1), the dichlorodimethylsilane was heated to 50 ° C. before dropping, and the reaction mixture was stirred at 50 ° C. for 90 minutes. Then, a racemic bibridged ligand represented by the following formula (5a) was obtained (yield 96%). The meso form was not included. Using the obtained racemic bibridged ligand, a racemic bibridged metallocene complex represented by the following formula (5b) was obtained in the same manner as in Example 1 (2) (yield 52%). The meso form was not included.
- Example 6 In Example 4 (1), the temperature of the dichlorodimethylsilane was raised to 50 ° C. before dropping, and the reaction mixture was stirred at 50 ° C. for 90 minutes. Then, a racemic bibridged ligand represented by the following formula (6a) was obtained (yield 98%). The meso form was not included. Using the obtained racemic bibridged ligand, a racemic bibridged metallocene complex represented by the following formula (6b) was obtained in the same manner as in Example 4 (2) (yield 82%). The meso form was not included.
- Example 1 A dibridged ligand was produced in the same manner as in Example 1 (1) except that the dicrosslinking reaction was carried out at ⁇ 30 ° C. for 360 minutes in Example 1 (1). Similarly, a bibridged metallocene complex was obtained.
- Example 1 (1) a bibridged ligand was produced in the same manner as in Example 1 (1) except that the dicrosslinking reaction was carried out at ⁇ 10 ° C. for 240 minutes, and the same as in Example 1 (2). Thus, a bibridged metallocene complex was obtained.
- Example 2 (1) a dicrosslinked ligand was produced in the same manner as in Example 2 (1) except that the dicrosslinking reaction was performed at ⁇ 30 ° C. for 360 minutes, and the same as in Example 2 (2). Thus, a bibridged metallocene complex was obtained.
- Example 2 (1) a dicrosslinked ligand was prepared in the same manner as in Example 2 (1) except that the dicrosslinking reaction was performed at ⁇ 10 ° C. for 240 minutes, and the same as in Example 2 (2). Thus, a bibridged metallocene complex was obtained.
- Example 3 (1) a di-crosslinked ligand was produced in the same manner as in Example 3 (1) except that the di-crosslinking reaction was performed at ⁇ 30 ° C. for 360 minutes, and the same as in Example 3 (2). Thus, a bibridged metallocene complex was obtained.
- Example 3 (1) a di-crosslinked ligand was produced in the same manner as in Example 3 (1) except that the di-crosslinking reaction was performed at ⁇ 10 ° C. for 240 minutes, and the same as in Example 3 (2). Thus, a bibridged metallocene complex was obtained.
- Example 4 (1) a di-crosslinked ligand was produced in the same manner as in Example 4 (1) except that the di-crosslinking reaction was performed at ⁇ 30 ° C. for 360 minutes, and the same as in Example 4 (2). Thus, a bibridged metallocene complex was obtained.
- Example 4 (1) a dicrosslinked ligand was produced in the same manner as in Example 4 (1) except that the dicrosslinking reaction was performed at ⁇ 10 ° C. for 240 minutes, and the same as in Example 4 (2). Thus, a bibridged metallocene complex was obtained.
- Example 1 (1) a bi-crosslinked ligand was produced in the same manner as in Example 1 (1) except that the bi-crosslinking reaction was performed at 50 ° C. for 30 minutes, and in the same manner as in Example 1 (2). Thus, a bibridged metallocene complex was obtained.
- Example 1 (1) except that the dicrosslinking reaction was performed at 30 ° C. for 90 minutes, a bibridged ligand was produced in the same manner as in Example 1 (1), and in the same manner as in Example 1 (2). Thus, a bibridged metallocene complex was obtained.
- Example 4 (1) a bi-crosslinked ligand was produced in the same manner as in Example 4 (1) except that the bi-crosslinking reaction was performed at 50 ° C. for 30 minutes, and in the same manner as in Example 4 (2). Thus, a bibridged metallocene complex was obtained.
- Example 4 (1) a di-crosslinked ligand was prepared in the same manner as in Example 4 (1) except that the di-crosslinking reaction was performed at 30 ° C. for 90 minutes, and in the same manner as in Example 4 (2). Thus, a bibridged metallocene complex was obtained.
- bi-crosslinking reaction temperature and time are the time and temperature from the time of contact of the compounds of formulas (1) and (2) to anionization.
- Yield of salt is the yield relative to the raw material mono-bridged product
- Yield of bi-bridged metallocene complex is the yield relative to the bi-bridged ligand.
- the method for producing meso-type and racemic bi-bridged ligands of the present invention can be used for producing bi-bridged metallocene complexes.
- the bi-bridged metallocene complex can be used as a catalyst for polyolefin polymerization.
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Abstract
Description
しかしながら、単架橋メタロセン錯体の場合、錯体合成時にラセミ体及びメソ体の混合物が得られるため、再結晶による分離や、特殊な原料の使用、光存在下での補助試薬の使用等、工業的に極めて不利となる種々の工程が必要であった(特許文献3~5)。
これに関連して、非特許文献6~8は珪素含有基を有する二架橋配位子の異性化反応に関して報告している。
以上より、珪素含有基を架橋に有する二架橋配位子のメソ体の選択的製造方法が求められていたが、有効な方法論は未だ見出されていなかった。
本発明の目的は、選択的にメソ型二架橋メタロセン錯体又はラセミ型架橋メタロセン錯体を製造する方法を提供することである。
1.式(1)の化合物と式(2)の化合物を-25℃以下で接触させ、
前記接触から5時間以内にアニオン化剤を投入する、式(3)のアニオン化メソ型二架橋配位子の製造方法。
2.式(1)の化合物と式(2)の化合物を45℃以上で接触させ、
前記接触から1時間以上経過してからアニオン化剤を投入する、式(4)のアニオン化ラセミ型二架橋配位子の製造方法。
3.前記Aがジメチルシリレン又はテトラメチルジシリレンであり、前記A’がジメチルシリレン又はテトラメチルジシリレンである1又は2に記載の製造方法。
4.1~3のいずれかの製造方法でアニオン化メソ型二架橋配位子又はアニオン化ラセミ型二架橋配位子を製造し、
前記アニオン化メソ型二架橋配位子又はアニオン化ラセミ型二架橋配位子を用いて二架橋メタロセン錯体を製造する、二架橋メタロセン錯体の製造方法。
本発明によれば、選択的にメソ型二架橋メタロセン錯体又はラセミ型二架橋メタロセン錯体を製造できる。
式(1)又は(3)において、R3~R10はそれぞれ隣接する基と環を形成してもよい。)
上記接触からアニオン化剤投入までは-25℃以下を維持することが好ましい。
また、式(1)の化合物と式(2)の化合物の接触は、例えば有機溶媒中で行えばよく、当該有機溶媒としては、テトラヒドロフラン、ジエチルエーテル、1,4-ジオキサン等が挙げられる。
単離操作を行うときは、-30℃程度の低温条件で実施することが好ましいが、その条件を保持できる特別な装置が必要となり現実的ではないため、通常は室温条件で単離操作を実施する。しかし、上記反応生成物を室温下に置くとラセミ化が加速化されるため、高純度なメソ型二架橋配位子が得られなるおそれがある。
式(1)又は(3)において、炭素数1~20の炭化水素基の例としては、メチル基、エチル基、プロピル基、ブチル基、ヘキシル基、シクロヘキシル基、オクチル基等のアルキル基、ビニル基、プロペニル基、シクロヘキセニル基等のアルケニル基、ベンジル基、フェニルエチル基、フェニルプロピル基等のアリールアルキル基、フェニル基、トリル基、ジメチルフェニル基、トリメチルフェニル基、エチルフェニル基、プロピルフェニル基、ビフェニル基、ナフチル基、メチルナフチル基、アントラセニル基、フェナントニル基等のアリール基等が挙げられる。
mは1~4の整数であり、好ましくは1又は2である。mが2以上の場合、複数のE、R11及びR12はそれぞれ同じでも異なっていてもよい。
炭素数1~20のアルコキシ基及び炭素数6~20のアリールオキシ基の例としては、メトキシ基、エトキシ基、各種プロポキシ基、各種ブトキシ基、各種ペントキシ基、各種ヘキソキシ基、各種オクトキシ基、フェノキシ基、メチルフェノキシ基、ナフトキシ基等が挙げられる。
Aがジメチルシリレン又はテトラメチルジシリレンであり、A’がジメチルシリレン又はテトラメチルジシリレンの組み合わせであると好ましい。
炭素-珪素結合の切断、再結合といった、エネルギーを要する反応を経てラセミ化反応が進行するため、高温条件下(45℃以上)で接触させることで早くラセミ化し、高純度なラセミ型二架橋配位子を与える。従って、より高温の反応条件が好ましく、反応温度は好ましくは50℃以上、より好ましくは60℃以上である。高温にしすぎると式(1)の化合物が分解するおそれがあるため、100℃以下が好ましい。
上記接触からアニオン化剤投入までは45℃以上を維持することが好ましい。
また、使用できるアニオン化剤及びその使用量についても第1の製造方法と同様である。
高純度な二架橋配位子(3)又は(4)を用いるため、高純度(例えば90%以上、好ましくは100%)の二架橋メタロセン錯体を得ることができる。
Yとしては塩素原子が好ましい。
2,2’-ジインデニルジメチルシランのLi塩の合成
200mlの2口フラスコにTHF(10ml)及びMg(2.5g,1.0mmol)を投入し、さらに1,2-ジブロモエタン(0.1ml)を加え、10分間室温下で攪拌し、Mg表面を活性化させた。ここへTHF(40ml)に溶解させた2-ブロモインデン(5.0g,26mmol)を、同圧滴下漏斗を用いて滴下した。
反応混合物を終夜攪拌した後、溶媒を留去し得られる固体からヘキサン(50ml×2)を用いて抽出した。得られる抽出溶液を乾固させることで、淡黄色オイル状生成物として2,2’-ジインデニルジメチルシランを得た(3.47g,12.0mmol,94%)。
2,2’-ジインデニルテトラメチルジシランのLi塩の合成
2Lの3口フラスコにTHF(300ml)及びMg(25g,1042mmol)を投入し、さらに1,2-ジブロモエタン(0.1ml)を加え、10分間室温下で攪拌し、Mg表面を活性化させた。ここへTHF(500ml)に溶解させた2-ブロモインデン(100g,513mmol)を、同圧滴下漏斗を用いて滴下した。
得られる反応混合物を氷浴を用いて冷却した後、1,2-ジクロロテトラメチルジシラン(46.8ml、251mmol)を滴下した。
(1)製造例1で得られたInd-SiMe2-IndのLi塩(0.50g,1.3mmol)をTHF(40ml)に溶解させた後、-30℃に冷却させ、ジクロロジメチルシラン(0.16ml,1.3mmol)を滴下し、その後反応混合物を-30℃で240分間攪拌させた。その後、そのままの温度でn-BuLi(2.6M,1.1ml,2.8mmol)を滴下した。
(1)製造例1で得たInd-SiMe2-IndのLi塩(0.500g,1.33mmol)をTHF(10ml)に溶解させ、-30℃まで冷却させた。ここへジクロロテトラメチルジシラン(0.25ml,1.33mmol)を滴下し、-30℃を保ったまま240分間攪拌させた。その後、そのままの温度でn-BuLi(2.6M,1.1ml,2.8mmol)を滴下した。
得られた反応混合物を乾固し、ヘキサン(20ml×2)を用いて洗浄することにより2Li+[(1,1’-SiMe2SiMe2)(2,2’-SiMe2)Ind2]2-を白色粉末として得た(0.660g,1.32mmol,99%)[メソ体:ラセミ体=93:7]。メソ体の構造を以下に示す。
(1)製造例2で得たInd-SiMe2SiMe2-IndのLi塩(2.0g,5.4mmol)をTHF(30ml)に溶解させ、-30℃まで冷却させた。ここへジクロロジメチルシラン(0.71ml,5.9mmol)を滴下し、-30℃を保ったまま240分間攪拌させた。その後、そのままの温度でn-BuLi(2.6M,4.5ml,12mmol)を滴下した。
得られた反応混合物を乾固し、ヘキサン(20ml×2)を用いて洗浄することにより2Li+[(1,1’-SiMe2)(2,2’-SiMe2SiMe2)Ind2]2-を白色粉末として得た(4.0g,5.1mmol,95%)[メソ体:ラセミ体=93:7]。メソ体の構造を以下に示す。
(1)製造例2で得たInd-SiMe2SiMe2-IndのLi塩(0.500g,1.33mmol)をTHF(10ml)に溶解させ、-30℃まで冷却させた。ここへジクロロテトラメチルジシラン(0.25ml,1.33mmol)を滴下し、-30℃を保ったまま240分間攪拌させた。その後、そのままの温度でn-BuLi(2.6M,1.1ml,2.8mmol)を滴下した。
得られた反応混合物を乾固し、ヘキサン(20ml×2)を用いて洗浄することにより2Li+[(1,1’-SiMe2SiMe2)(2,2’-SiMe2SiMe2)Ind2]2-を白色粉末として得た(0.71g,1.3mmol,98%)[メソ体:ラセミ体=95:5]。メソ体の構造を以下に示す。
実施例1(1)において、ジクロロジメチルシランを滴下前に50℃まで昇温し、反応混合物を50℃で90分間攪拌した他は、実施例1(1)と同様にして二架橋化反応を行い、以下式(5a)に示すラセミ体の二架橋配位子を得た(収率96%)。メソ体は含まれていなかった。
得られたラセミ体二架橋配位子を用いて、実施例1(2)と同様にして以下式(5b)に示すラセミ体の二架橋メタロセン錯体を得た(収率52%)。メソ体は含まれていなかった。
実施例4(1)において、ジクロロジメチルシランを滴下前に50℃まで昇温し、反応混合物を50℃で90分間攪拌した他は、実施例4(1)と同様にして二架橋化反応を行い、以下式(6a)に示すラセミ体の二架橋配位子を得た(収率98%)。メソ体は含まれていなかった。
得られたラセミ体二架橋配位子を用いて、実施例4(2)と同様にして以下式(6b)に示すラセミ体の二架橋メタロセン錯体を得た(収率82%)。メソ体は含まれていなかった。
実施例1(1)において、二架橋化反応を-30℃で360分間で行った他は実施例1(1)と同様にして二架橋配位子を製造し、実施例1(2)と同様にして二架橋メタロセン錯体を得た。
実施例1(1)において、二架橋化反応を-10℃で240分間行った他は実施例1(1)と同様にして二架橋配位子を製造し、実施例1(2)と同様にして二架橋メタロセン錯体を得た。
実施例2(1)において、二架橋化反応を-30℃で360分間行った他は実施例2(1)と同様にして二架橋配位子を製造し、実施例2(2)と同様にして二架橋メタロセン錯体を得た。
実施例2(1)において、二架橋化反応を-10℃で240分間行った他は実施例2(1)と同様にして二架橋配位子を製造し、実施例2(2)と同様にして二架橋メタロセン錯体を得た。
実施例3(1)において、二架橋化反応を-30℃で360分間行った他は実施例3(1)と同様にして二架橋配位子を製造し、実施例3(2)と同様にして二架橋メタロセン錯体を得た。
実施例3(1)において、二架橋化反応を-10℃で240分間行った他は実施例3(1)と同様にして二架橋配位子を製造し、実施例3(2)と同様にして二架橋メタロセン錯体を得た。
実施例4(1)において、二架橋化反応を-30℃で360分間行った他は実施例4(1)と同様にして二架橋配位子を製造し、実施例4(2)と同様にして二架橋メタロセン錯体を得た。
実施例4(1)において、二架橋化反応を-10℃で240分間行った他は実施例4(1)と同様にして二架橋配位子を製造し、実施例4(2)と同様にして二架橋メタロセン錯体を得た。
実施例1(1)において、二架橋化反応を50℃で30分間行った他は実施例1(1)と同様にして二架橋配位子を製造し、実施例1(2)と同様にして二架橋メタロセン錯体を得た。
実施例1(1)において、二架橋化反応を30℃で90分間行った他は実施例1(1)と同様にして二架橋配位子を製造し、実施例1(2)と同様にして二架橋メタロセン錯体を得た。
実施例4(1)において、二架橋化反応を50℃で30分間行った他は実施例4(1)と同様にして二架橋配位子を製造し、実施例4(2)と同様にして二架橋メタロセン錯体を得た。
実施例4(1)において、二架橋化反応を30℃で90分間行った他は実施例4(1)と同様にして二架橋配位子を製造し、実施例4(2)と同様にして二架橋メタロセン錯体を得た。
この明細書に記載の文献の内容を全てここに援用する。
Claims (4)
- 前記Aがジメチルシリレン又はテトラメチルジシリレンであり、前記A’がジメチルシリレン又はテトラメチルジシリレンである請求項1又は2に記載の製造方法。
- 請求項1~3のいずれかの製造方法でアニオン化メソ型二架橋配位子又はアニオン化ラセミ型二架橋配位子を製造し、
前記アニオン化メソ型二架橋配位子又はアニオン化ラセミ型二架橋配位子を用いて二架橋メタロセン錯体を製造する、二架橋メタロセン錯体の製造方法。
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US11306162B2 (en) | 2019-04-17 | 2022-04-19 | Exxonmobil Chemical Patents Inc. | Metallocenes with two -Si-Si- bridges |
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