WO2001085738A1 - Preparation of secondary aminoisobutylalkoxysilanes - Google Patents
Preparation of secondary aminoisobutylalkoxysilanes Download PDFInfo
- Publication number
- WO2001085738A1 WO2001085738A1 PCT/US2001/014537 US0114537W WO0185738A1 WO 2001085738 A1 WO2001085738 A1 WO 2001085738A1 US 0114537 W US0114537 W US 0114537W WO 0185738 A1 WO0185738 A1 WO 0185738A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- carbon atoms
- methallylamine
- hydridoalkoxysilane
- hydrosilation
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title description 4
- 238000006459 hydrosilylation reaction Methods 0.000 claims abstract description 49
- 239000003054 catalyst Substances 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 28
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 47
- 229910052697 platinum Inorganic materials 0.000 claims description 22
- 125000004432 carbon atom Chemical group C* 0.000 claims description 19
- LDCWGVLBCJEQMT-UHFFFAOYSA-N 2-methyl-n-(2-methylprop-2-enyl)prop-2-en-1-amine Chemical compound CC(=C)CNCC(C)=C LDCWGVLBCJEQMT-UHFFFAOYSA-N 0.000 claims description 17
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 claims description 17
- AXTLFVLHXSDZOW-UHFFFAOYSA-N n-ethyl-2-methylprop-2-en-1-amine Chemical compound CCNCC(C)=C AXTLFVLHXSDZOW-UHFFFAOYSA-N 0.000 claims description 16
- VXDHQYLFEYUMFY-UHFFFAOYSA-N 2-methylprop-2-en-1-amine Chemical group CC(=C)CN VXDHQYLFEYUMFY-UHFFFAOYSA-N 0.000 claims description 15
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- -1 vinylsiloxane Chemical class 0.000 claims description 13
- 125000004122 cyclic group Chemical group 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 229910000510 noble metal Inorganic materials 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 5
- GAURFLBIDLSLQU-UHFFFAOYSA-N diethoxy(methyl)silicon Chemical compound CCO[Si](C)OCC GAURFLBIDLSLQU-UHFFFAOYSA-N 0.000 claims description 5
- PKTOVQRKCNPVKY-UHFFFAOYSA-N dimethoxy(methyl)silicon Chemical compound CO[Si](C)OC PKTOVQRKCNPVKY-UHFFFAOYSA-N 0.000 claims description 5
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 125000005394 methallyl group Chemical group 0.000 claims description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 125000005248 alkyl aryloxy group Chemical group 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000002102 aryl alkyloxo group Chemical group 0.000 claims description 2
- 125000004104 aryloxy group Chemical group 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 48
- 239000000047 product Substances 0.000 description 23
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 238000004817 gas chromatography Methods 0.000 description 13
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 9
- 239000000376 reactant Substances 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000006227 byproduct Substances 0.000 description 7
- 238000004821 distillation Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 230000032050 esterification Effects 0.000 description 3
- 238000005886 esterification reaction Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- FRDNYWXDODPUJV-UHFFFAOYSA-N n-ethyl-2-methyl-3-trimethoxysilylpropan-1-amine Chemical compound CCNCC(C)C[Si](OC)(OC)OC FRDNYWXDODPUJV-UHFFFAOYSA-N 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 150000003335 secondary amines Chemical group 0.000 description 3
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- OHXAOPZTJOUYKM-UHFFFAOYSA-N 3-Chloro-2-methylpropene Chemical compound CC(=C)CCl OHXAOPZTJOUYKM-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000013058 crude material Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000007323 disproportionation reaction Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- SQKIDPAXRPFRJJ-UHFFFAOYSA-N 1-chloroethoxy-diethoxy-(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OC(C)Cl SQKIDPAXRPFRJJ-UHFFFAOYSA-N 0.000 description 1
- NCGHYOATOACNPX-UHFFFAOYSA-N 2-methyl-3-triethoxysilylpropanenitrile Chemical compound CCO[Si](OCC)(OCC)CC(C)C#N NCGHYOATOACNPX-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 1
- 229910007991 Si-N Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910006294 Si—N Inorganic materials 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000013466 adhesive and sealant Substances 0.000 description 1
- 238000005576 amination reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- FSIJKGMIQTVTNP-UHFFFAOYSA-N bis(ethenyl)-methyl-trimethylsilyloxysilane Chemical compound C[Si](C)(C)O[Si](C)(C=C)C=C FSIJKGMIQTVTNP-UHFFFAOYSA-N 0.000 description 1
- DSVRVHYFPPQFTI-UHFFFAOYSA-N bis(ethenyl)-methyl-trimethylsilyloxysilane;platinum Chemical compound [Pt].C[Si](C)(C)O[Si](C)(C=C)C=C DSVRVHYFPPQFTI-UHFFFAOYSA-N 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical class Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- NWKBSEBOBPHMKL-UHFFFAOYSA-N dichloro(methyl)silane Chemical compound C[SiH](Cl)Cl NWKBSEBOBPHMKL-UHFFFAOYSA-N 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical class CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- VXGQGDOCESHZBQ-UHFFFAOYSA-N hexoxysilane Chemical class CCCCCCO[SiH3] VXGQGDOCESHZBQ-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- HYQBDFDRGVBLHS-UHFFFAOYSA-N n-(2-methyl-3-trimethoxysilylpropyl)aniline Chemical compound CO[Si](OC)(OC)CC(C)CNC1=CC=CC=C1 HYQBDFDRGVBLHS-UHFFFAOYSA-N 0.000 description 1
- PNAUMDBGSPRGCS-UHFFFAOYSA-N n-ethyl-2-methyl-3-triethoxysilylpropan-1-amine Chemical compound CCNCC(C)C[Si](OCC)(OCC)OCC PNAUMDBGSPRGCS-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- RBCYCMNKVQPXDR-UHFFFAOYSA-N phenoxysilane Chemical class [SiH3]OC1=CC=CC=C1 RBCYCMNKVQPXDR-UHFFFAOYSA-N 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 239000004588 polyurethane sealant Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/10—Compounds having one or more C—Si linkages containing nitrogen having a Si-N linkage
-
- 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 System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/1876—Preparation; Treatments not provided for in C07F7/20 by reactions involving the formation of Si-C linkages
Definitions
- the present invention relates to a highly efficient method of preparing secondary aminosiobutylalkoxysilanes via noble metal-catalyzed hydrosilation reactions between secondary methallylamines and hydridoalkoxysilanes.
- Methallylamine is disclosed and/or claimed in a number of patents involving hydrosilation of allylic amines using hydridosiloxanes, but there is no working example of such a reaction, and there has been no suggestion to hydrosilate methallylamine using a hydridosilane.
- hydrosilation of a secondary methallylamine with a hydridosiloxane U.S. 5,486,634
- hydrosilations of tertiary methallylamines which would yield products of no use in capping polyurethanes.
- hydrosilation of dimethallylamine although that amine is disclosed in at least one hydrosilation patent also involving hydridosiloxanes (U.S. 5,840,951).
- hydrosilations of allylic amines have been notoriously unsuccessful. Allylamine is specifically excluded in an early general patent on hydrosilation (U.S. 2,970, 150), with hydrosilation products being prepared by capping the allylamine with trimethylsilyl groups, hydrosilating the allyl group, and removing the trimethylsilyl groups (see Journal of Organic Chemistry, Vol. 24, 119 (1959)).
- aminopropylalkoxysilanes have been prepared by reactions of chloropropylalkoxysilanes with large excesses of ammonia or primary amines, yielding the respective primary or secondary aminopropylalkoxysilanes. These routes suffer from low yields per unit volume of equipment used, high levels of waste or excess raw materials, and the formation of large amounts of difficult-to-handle solid hydrochloride salts.
- Aminopropylalkoxysilanes have also been prepared by reduction of cyanoethylalkoxysilanes, which are prepared by hydrosilation of acrylonitrile with chlorosilanes, followed by esterification with the appropriate alchohol. These are multi-step processes, followed by purification as by distillation.
- diallylamine is further complicated by the formation of disproportionation by-products, which do not occur with allylamine itself (Zhur. Obshch. Khim., Vol. 44,1484 (1974), in English as Journal of General Chemistry, USSR, Vol. 44,1456(1974)).
- the present invention provides a simple, highly efficient method for preparing secondary aminoisobutylalkoxysilanes by the noble metal-catalyzed hydrosilation of secondary methallylamines with hydridoalkoxysilanes or hydridoalkylalkoxysilanes.
- the reactions proceed in high yields and conversions to yield isomerically pure products in the absence of additives or promoters normally required for hydrosilations of allylic amines.
- the process involves neither modification of the secondary methallylamines nor use of added hydrosilation promoters or solvents.
- R 1 represents an alkyl group having 1 to 30 carbon atoms, optionally interrupted with one or more ether oxygen atoms and/or substituted with a carbonyl oxygen atom, and aryl, alkaryl, or aralkyl group having 6 to 10 carbon atoms, or a group of the formula
- R represents an alkoxy group having 1 to 6 carbon atoms or an aryloxy, alkaryloxy, or aralkyl oxy group having 6 to 10 carbons
- R 3 represents an alkyl group of 1 to 6 carbon or an aryl, alkaryl, or aralkyl group having 6 to 10 carbon atoms
- a is 0, 1 or 2
- U represents a divalent linear, cyclic or branched hydrocarbon group of 1-6 carbon atoms which may be optionally interrupted by one or more ether oxygen atoms and/or substituted with a carbonyl oxygen atom
- m is 0 or 1
- u is 0 or 1
- T is
- X is an alkylene group of 3 to 11 carbon atoms or T; and Cat represents an effective amount of a noble metal-containing hydrosilation catalyst.
- Examples of compounds of formula 1 include (MeO) 3 SiH, Me(MeO) 2 SiH, Me 2 (MeO)SiH,(EtO) 3 SiH, Me(EtO) 2 SiHMe 2 (EtO)SiH, or (PrO) 3 SiH, Me(PrO) 2 SiH, and Me (PrO)SiH where Me is methyl, Et is ethyl, and Pr is n-propyl or i-propyl; the corresponding butoxy, pentoxy, or hexoxy silanes; phenoxy silanes such as
- the methoxy and ethoxy silanes are preferred, particularly the trialkoxysilanes as prepared by the direct reactions of silicon metal with the corresponding alcohol.
- the methyldialkoxysilanes normally prepared by esterification of the respective hydridodichlorosilane with the corresponding alcohol, are also preferred.
- compounds of Formula 11 will comprise at least a methallyl group and a secondary amine group, and may contain other hydrocarbon and oxygen functionalities, with the proviso that said functionalities do not interfere with the hydrosilation reactions.
- compound of Formula 11 is N-ethylmethallylamine; another is N-phenylmethallylamine, and a third is dimethallylamine.
- the hydrosilation catalyst is suitably a noble-metal containing hydrosilation catalyst.
- Suitable noble metals include platinum, rhodium, ruthenium, iridium, and osmium, with platinum being preferred.
- the noble metal-containing hydrosilation catalyst of the present invention may be employed in any catalytically effective form, including in compounds or solutions thereof, and as deposits on various organic or inorganic supports.
- Preferred catalysts are compounds of platinum, including chloroplatinic acid and solutions thereof, and the divinyltetramethyl-disiloxane platinum complex and solutions thereof.
- the catalyst level is an amount effective to catalyze the reaction and will typically range from about 5 to about 500 parts per million of noble metal relative to the combined weights of the reactants of Formulae 1 and 11, with 10 to 100 parts per million being preferred.
- Reaction conditions are not narrowly critical regarding temperature, pressure, ratios of reactants, or order of combination of reactants.
- the reaction temperature is typically elevated, in the range of 50 to 150° C, with 60 to 120° C being preferred.
- the reactions will typically be run at atmospheric pressure. However, pressure-capable equipment and elevated pressures may be employed if desired.
- the reactant ratio i.e., the molar ratio of the reactant of Formula 1 to that of Formula 11 may range from 0.2:1 to 5:1, but is generally close to 1:1 for secondary methallylamines with one methallyl group, and close to 2:1 for dimethallylamines.
- either reactant may be added to the other in the presence of an effective amount of hydrosilation catalyst, for certain secondary methallylamines, particularly dimethallylamine, it is preferred to add the compound of Formula 11 to that of Formula 1 at an elevated temperature.
- hyydrosilation reactions may also be run in continuous fashion, in equipment designed for that purpose (See, for example, U.S. 6,015,920). Reaction times are relatively short for these reactions, which are exothermic. The latter point implies that catalysis of a total mixture of compounds of Formulae 1 and 11 is less desirable from a safety point of view.
- the products of the present invention after stripping to remove excess reactants and excess alcohol, if used to remove cyclic silazane impurities, are of sufficient purity to be used without further purification (e.g. by distillation) in many applications.
- This derives from the fact that there is no mechanism to generate higher boiling bis-silyl by-products as occurs in both reactions of chloroisobutylalkoxysilanes with ammonia and of reductions of 2-cyanopropylalkoxysilanes with hydrogen. Distillation may be desireable in some cases, however, to provide incremental increase in purity and/or to remove color and catalyst residues.
- a one-liter three-neck round bottom flask was equipped with a magnetic stir bar, standard heating mantle, thermocouple, addition funnel, condenser and N 2 inlet/bubbler.
- the flask was charged with 220 g (1.80 mols) of trimethoxysilane and heated to 60°C at which temperature 0.25 ml of platinum tris(divinyltetramethyl disiloxane)diplatinum (0) (5% Pt content in toluene-referred to as Pt catalyst throughout these examples) was added.
- the solution was further heated to 68°C and dropwise addition of 150 g (1.52 mols) of N-ethylmethallylamine was then conducted over a period of 45 minutes.
- Example 2 With the exception of a distillation head replacing the condenser, the equipment was ' similar to that of Example 1.
- the flask was charged with 381 g (2.84 mols) of methyldiethoxysilane and 0.65 ml of platinum catalyst.
- the contents were heated to 90° C and 260 g (2.63 mols) of N-ethylmethallylamine were added over 30 minutes via addition funnel.
- the contents were heated to 110° C and held for one hr.
- the product was isolated by vacuum distillation to give 485 g (2.08 mols) of N-ethyl-(3-diethoxymethylsilyl)-2-methylpropanamine.
- the product (b.p. 88-90°C at 27mm Hg) was characterized via GC/MS. The isolated yield was 79%.
- N-ethylmethallylamine and 1425 g of platinum catalyst The resulting solution was heated to 88°C and 725 kg (5.94 kmols) of trimethoxysilane were added at such a rate to keep the temperature under 105°C. After addition was complete, the contents were heated to 110° C for one hr. The low boiling byproducts were then removed by overhead stripping. The mixture was then cooled and approximately 60 L of methanol were added, and the reaction mixture was agitated at 50°C for 1 hour before stripping the excess methanol. The resulting crude material (>97% purity) was then transferred from the reactor. The process was repeated without cleanup of the reactor to yield a combined total of 1638 kg (7.41 kmol) of N-ethyl-3-trimethoxysilyl-2-methylpropanamine.
- Example 6- Hydrosilation of Dimethallylamine with Methyldiethoxysilane The reaction was carried out similar to Example 5 except that 13.5 g (0.10 mols) of methyldiethoxysilane and 18.5 ⁇ l of platinum catalyst were charged to the flask. This solution was heated to 90°C and 5.0 g (0.04 mols) of dimethallylamine were added dropwise. After completion of the addition, the reaction was heated to 105°C and held for 6 hrs. The resulting mixture was analyzed by gas chromatography and GC/MS. Gas chromatography indicated that the yield of the diadduct was 97% based on the dimethallylamine.
- the reaction was carried out similar to Example 5 except that 5.0 g (0.03 mols) of triethoxysilane and 5 ⁇ l of platinum catalyst were charged to the flask. This solution was heated to 100°C and 3.0 g (0.03 mols) of N-ethylmethallylamine were added dropwise. After completion of the addition, the reaction was heated to 130°C for 3 hrs. The resulting mixture was analyzed by gas chromatography and GC/MS. Gas chromatography indicated that the yield of the
- N-ethyl-3-triethoxysilyl-2-methylpropanamine was 85% based on the triethoxysilane.
- Example 8- Hydrosilation of Dimethallylamine with Methyldimethoxysilane The reaction was carried out similar to Example 5 except that 15.0 g (0.12 mols) of dimethallylamine and 44 ⁇ l of platinum catalyst were charged to the flask. This solution was heated to 85°C and 28.9 g of methyldimethoxysilane (93.8% purity, 0.26 mols) were added dropwise. After the addition was complete, the mixture was heated to 122°C for two hrs. The reaction was then cooled and 2 ml of methanol were added. The resulting mixture was analyzed by gas chromatography and GC/MS. Gas chromatography indicated that the yield of the diadduct was 92% based on dimethallylamine.
- Example 9 Hydrosilation of N-Ethylmethallylamine with Methyldimethoxysilane
- the reaction was carried out similar to Example 5 except that 18 g (0.18 mols) of N-ethylmethallylamine and 40 ⁇ l of platinum catalyst were charged to the flask. This solution was heated to 85° C and 22 g of methyldimethoxysilane (95.2 % purity, 0.2 mols) were added dropwise. After the addition was complete, the mixture was heated at 110°C for 1.5 hrs. The resulting mixture was analyzed by gas chromatography and GS/MS.
- the reaction was carried out similar to Example 5 except that 10.5 g (0.09 mols) of trimethoxysilane and 16 ⁇ l of platinum catalyst were charged to the flask. The solution was heated to 85°C and 5.0 g (0.07 mols) of methallylamine were added dropwise. The reaction was brought to reflux for 3.5 hours. Analysis by gas chromatography and GC/MS did not indicate any hydrosilation product.
- Example 10 Hydrosilation of N-Phenylmethallylamine with Trimethoxysilane
- TMS trimethoxysilane
- Pt(0)M*M*, 23 ⁇ l, 20 ppm Pt dimethylvinylsiloxane platinum(O) catalyst in toluene
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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EP01933055A EP1278757B1 (en) | 2000-05-05 | 2001-05-07 | Preparation of secondary aminoisobutylalkoxysilanes |
JP2001582338A JP3556642B2 (en) | 2000-05-05 | 2001-05-07 | Preparation of secondary aminoisobutylalkoxysilanes |
CN018090699A CN1427843B (en) | 2000-05-05 | 2001-05-07 | Preparation of secondary aminoisobutyl alkoxysilanes |
BRPI0110571A BRPI0110571B1 (en) | 2000-05-05 | 2001-05-07 | method for preparing secondary amino isobutyl alkoxysilane |
CA2405195A CA2405195C (en) | 2000-05-05 | 2001-05-07 | Preparation of secondary aminoisobutylalkoxysilanes |
AU2001259516A AU2001259516A1 (en) | 2000-05-05 | 2001-05-07 | Preparation of secondary aminoisobutylalkoxysilanes |
DE60123034T DE60123034T2 (en) | 2000-05-05 | 2001-05-07 | PREPARATION OF SECONDARY AMINOISOBUTYLALKOXYSILANES |
DK01933055T DK1278757T3 (en) | 2000-05-05 | 2001-05-07 | Preparation of secondary aminoisobutyl alkoxysilanes |
Applications Claiming Priority (2)
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US20309800P | 2000-05-05 | 2000-05-05 | |
US60/203,098 | 2000-05-05 |
Publications (1)
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WO2001085738A1 true WO2001085738A1 (en) | 2001-11-15 |
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PCT/US2001/014537 WO2001085738A1 (en) | 2000-05-05 | 2001-05-07 | Preparation of secondary aminoisobutylalkoxysilanes |
Country Status (14)
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US (1) | US6809213B2 (en) |
EP (1) | EP1278757B1 (en) |
JP (1) | JP3556642B2 (en) |
KR (1) | KR100818835B1 (en) |
CN (2) | CN101824048B (en) |
AT (1) | ATE339427T1 (en) |
AU (1) | AU2001259516A1 (en) |
BR (1) | BRPI0110571B1 (en) |
CA (1) | CA2405195C (en) |
DE (1) | DE60123034T2 (en) |
DK (1) | DK1278757T3 (en) |
ES (1) | ES2271009T3 (en) |
PT (1) | PT1278757E (en) |
WO (1) | WO2001085738A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1306381A1 (en) * | 2001-10-10 | 2003-05-02 | Degussa AG | Process for the hydrosilylation of aliphatic unsaturated compounds |
US6585941B2 (en) | 1998-10-16 | 2003-07-01 | Degussa Ag | Apparatus and process for filling and emptying a vessel charged with flammable and aggressive gas |
WO2003070734A1 (en) * | 2002-02-19 | 2003-08-28 | General Electric Company | Preparation of n-substituted aminoorganosilanes |
CN100424109C (en) * | 2006-04-27 | 2008-10-08 | 华南理工大学 | Preparation method of amino silane modified urethane acrylate resin |
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US6872845B2 (en) | 2003-03-03 | 2005-03-29 | General Electric Company | Process for making haloorganoalkoxysilanes |
US7380163B2 (en) * | 2003-04-23 | 2008-05-27 | Dot Hill Systems Corporation | Apparatus and method for deterministically performing active-active failover of redundant servers in response to a heartbeat link failure |
JP4397647B2 (en) * | 2003-07-30 | 2010-01-13 | 東レ・ダウコーニング株式会社 | Hydroalkoxysilane stabilizer, stabilization method and stabilized hydroalkoxysilane |
DE102009027257A1 (en) * | 2009-06-26 | 2010-12-30 | Wacker Chemie Ag | Process for the preparation of organoalkoxyhydrosilanes |
JP5630458B2 (en) * | 2012-05-01 | 2014-11-26 | 信越化学工業株式会社 | Organoxysilane compound having secondary amino group protected by silyl group and method for producing the same |
FR3008324B1 (en) * | 2013-07-12 | 2019-10-04 | Centre National De La Recherche Scientifique - Cnrs | NEW SILYLENE LIGAND CATALYSTS |
RU2748923C1 (en) | 2018-02-20 | 2021-06-01 | Ниссан Мотор Ко., Лтд. | Method for automated lane change and automated lane change control |
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- 2001-05-01 US US09/847,004 patent/US6809213B2/en not_active Expired - Lifetime
- 2001-05-07 ES ES01933055T patent/ES2271009T3/en not_active Expired - Lifetime
- 2001-05-07 CN CN2010101295280A patent/CN101824048B/en not_active Expired - Fee Related
- 2001-05-07 JP JP2001582338A patent/JP3556642B2/en not_active Expired - Fee Related
- 2001-05-07 CN CN018090699A patent/CN1427843B/en not_active Expired - Fee Related
- 2001-05-07 CA CA2405195A patent/CA2405195C/en not_active Expired - Fee Related
- 2001-05-07 KR KR1020027014786A patent/KR100818835B1/en active IP Right Grant
- 2001-05-07 WO PCT/US2001/014537 patent/WO2001085738A1/en active IP Right Grant
- 2001-05-07 AU AU2001259516A patent/AU2001259516A1/en not_active Abandoned
- 2001-05-07 DK DK01933055T patent/DK1278757T3/en active
- 2001-05-07 PT PT01933055T patent/PT1278757E/en unknown
- 2001-05-07 DE DE60123034T patent/DE60123034T2/en not_active Expired - Lifetime
- 2001-05-07 BR BRPI0110571A patent/BRPI0110571B1/en not_active IP Right Cessation
- 2001-05-07 EP EP01933055A patent/EP1278757B1/en not_active Expired - Lifetime
- 2001-05-07 AT AT01933055T patent/ATE339427T1/en not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
---|---|
CA2405195A1 (en) | 2001-11-15 |
EP1278757B1 (en) | 2006-09-13 |
CN1427843A (en) | 2003-07-02 |
AU2001259516A1 (en) | 2001-11-20 |
EP1278757A1 (en) | 2003-01-29 |
PT1278757E (en) | 2006-11-30 |
CA2405195C (en) | 2011-03-15 |
CN101824048B (en) | 2012-07-18 |
CN1427843B (en) | 2010-04-28 |
ATE339427T1 (en) | 2006-10-15 |
DE60123034T2 (en) | 2007-03-08 |
ES2271009T3 (en) | 2007-04-16 |
BRPI0110571B1 (en) | 2017-06-06 |
CN101824048A (en) | 2010-09-08 |
US6809213B2 (en) | 2004-10-26 |
KR100818835B1 (en) | 2008-04-01 |
US20010044551A1 (en) | 2001-11-22 |
JP3556642B2 (en) | 2004-08-18 |
KR20020094008A (en) | 2002-12-16 |
DK1278757T3 (en) | 2007-01-29 |
JP2003532734A (en) | 2003-11-05 |
BR0110571A (en) | 2003-12-30 |
DE60123034D1 (en) | 2006-10-26 |
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