SYNTHESIS OF (E)-ARYLIDENE AND ALLYLIDENE CYCLOPENTANES BY ANNELATION CATALYZED BY A PALLADIUM(0) COMPLEX

被引:66
作者
FOURNET, G
BALME, G
GORE, J
机构
[1] Laboratoire de Chimie Organique 1, associé au CNRS, Université Claude Bernard, 69622 Villeurbanne, 43 Bd du
关键词
D O I
10.1016/S0040-4020(01)86561-3
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
When treated with an unsaturated halide in a palladium-catalyzed process, the anions from gamma-acetylenic malonates 4 and 5 stereospecifically lead to cyclopentanes having an exo tri- or tetra-substituted double bond. This reaction which forms simultaneously two carbon-carbon bonds is believed to proceed by nucleophilic attack of the anion on the triple bond activated by the sigma-aryl or sigma-vinyl palladium complex.
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页码:6293 / 6304
页数:12
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