REACTIONS OF W(CCME(3)) (OCME(3))(3) WITH TERMINAL ALKYNES - METATHESIS AND POLYMERIZATION

被引：28

作者：

MORTREUX, A ^{[1
]}

PETIT, F ^{[1
]}

PETIT, M ^{[1
]}

SZYMANSKA-BUZAR, T ^{[1
]}

机构：

[1] UNIV WROCLAW, INST CHEM, PL-50383 WROCLAW, POLAND

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1995年 / 96卷 / 02期

关键词：

ALKYNES; CARBYNE COMPLEXES; METATHESIS; PHENYLACETYLENE; POLYMERIZATION; TUNGSTEN;

D O I：

10.1016/1381-1169(94)00004-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Catalytic metathesis of terminal alkynes RC=CH (R = alkyl, phenyl) is performed with the carbyne complex WCCMe(3) (OCCMe(3))(3) 1. This reaction is rapidly masked by a polymerization reaction, which is the only process occurring at low temperature, The production of deprotiometallacyclic complexes WC(3)R(2)(OCCMe(3))(2) 2 by loss of tert-butyl alcohol from the metallacyclobutadiene intermediates is shown to be responsible for the deactivation in metathesis. Compounds of type 2 are extremely reactive in phenylacetylene polymerization.

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页码：95 / 105

页数：11

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