CYCLOADDITIONS OF ALLYLSILANES .6. LEWIS-ACID PROMOTED [2+2] CYCLOADDITION OF ALLYLSILANES AND UNSATURATED ESTERS - A NOVEL METHOD FOR CYCLOBUTANE CONSTRUCTION

被引：58

作者：

KNOLKER, HJ ^{[1
]}

BAUM, G ^{[1
]}

GRAF, R ^{[1
]}

机构：

[1] UNIV KARLSRUHE,INST ANORGAN CHEM,D-76131 KARLSRUHE,GERMANY

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1994年 / 33卷 / 15-16期

关键词：

D O I：

10.1002/anie.199416121

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A third mode of reactivity for allylsilanes in their reactions with α,β‐unsaturated carbonyl compounds has been found in addition to the Sakurai reaction and the [3 + 2] cycloaddition. Silylmethyl‐cyclobutanes are formed regioselectively via a siliranium ion intermediate (1). The reaction with methyl propynoate provides bicyclo[2.2.0]hexanes in a one‐pot conversion. (Figure Presented.) Copyright © 1994 by VCH Verlagsgesellschaft mbH, Germany

引用

页码：1612 / 1615

页数：4

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