ALKYLENE OXIDE POLYMERIZATION USING PHOSPHONIUM CATALYSTS

Alkoxylation reactions are performed in the presence of a phosphonium catalyst having the structure P+(XR1R2R3)A1 wherein R1 is a group having an unsubstituted or inertly substituted aromatic five-member ring having a direct bond between an atom of the aromatic five-member ring and the phosphorus at...

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Hauptverfasser: BÉDARD, Anne-Catherine, RAGHURAMAN, Arjun, BELOWICH, Matthew E, BERNALES CANDIA, Sandra Varinia, CUMMINS, Clark H, WALLER, Peter J
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creator BÉDARD, Anne-Catherine
RAGHURAMAN, Arjun
BELOWICH, Matthew E
BERNALES CANDIA, Sandra Varinia
CUMMINS, Clark H
WALLER, Peter J
description Alkoxylation reactions are performed in the presence of a phosphonium catalyst having the structure P+(XR1R2R3)A1 wherein R1 is a group having an unsubstituted or inertly substituted aromatic five-member ring having a direct bond between an atom of the aromatic five-member ring and the phosphorus atom, and each R2 is independently a group having an unsubstituted or inertly substituted, optionally heteroatomic, aromatic five- or six-member ring having a direct bond between a carbon atom of the optionally heteroatomic aromatic five- or six-member ring and the phosphorus atom, X is selected from fluorine, chlorine, bromine, iodine, C1-12 perfluoroalkyl, C1-12 alkyl, aryloxy and C1-12 alkoxy, and A is a weakly coordinating anion. L'invention concerne des réactions d'alcoxylation qui sont effectuées en présence d'un catalyseur de phosphonium ayant la structure P+(XR1R2R3)A1 dans laquelle R1 est un groupe ayant un cycle à cinq chaînons aromatique non substitué ou substitué de manière inerte ayant une liaison directe entre un atome du cycle à cinq chaînons aromatique et l'atome de phosphore, et chaque R2 est indépendamment un groupe ayant un cycle aromatique à cinq ou six chaînons, éventuellement hétéroatomique, substitué ou non substitué ayant une liaison directe entre un atome de carbone du cycle aromatique à cinq ou six chaînons éventuellement hétéroatomique et l'atome de phosphore, X est choisi parmi le fluor, le chlore, le brome, l'iode, le perfluoroalkyle en C1-12, l'alkyle en C1-12, l'aryloxy et l'alcoxy en C1-12 , et A est un anion faiblement coordonnant.
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subjects ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title ALKYLENE OXIDE POLYMERIZATION USING PHOSPHONIUM CATALYSTS
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