DIVALENT PALLADIUM CATALYZED STEREOSELECTIVE SYNTHESIS OF ALPHA-(Z)-(HALOMETHYLENE)-GAMMA-BUTYROLACTONE DERIVATIVES AND ITS MECHANISM

被引：120

作者：

MA, SM ^{[1
]}

LU, XY ^{[1
]}

机构：

[1] ACAD SINICA,SHANGHAI INST ORGAN CHEM,345 LINGLING LU,SHANGHAI 200032,PEOPLES R CHINA

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1991年 / 56卷 / 17期

关键词：

D O I：

10.1021/jo00017a025

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Alpha-Methylene-gamma-butyrolactone rings have been constructed by bis(benzonitrile)palladium dihalide or Pd-(OAc)2-LiX catalyzed cyclization reaction of haloallylic 2-alkynoates. A mechanism involving a trans halopalladation, followed by intramolecular insertion of a carbon-carbon double bond to a carbon-palladium bond and subsequent dehalopalladation, is briefly discussed.

引用

页码：5120 / 5125

页数：6

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