GENERATION AND TRAPPING OF CYCLOPROPENES FROM 2-ALKOXY-1,1-DICHLOROCYCLOPROPANES

被引：13

作者：

MULLER, P

PAUTEX, N

机构：

[1] Université de Genève, Département de Chimie Organique, Genève, CH-1211, 30, quai Ernest Ansermet

来源：

HELVETICA CHIMICA ACTA | 1991年 / 74卷 / 01期

关键词：

D O I：

10.1002/hlca.19910740108

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In presence of crown ether, 2-alkoxy-1, 1-dichlorocyclopropanes react with t-BuOK/THF preferentially via ring opening to 2-chloroalk-2-en-1-ones and alkynones or to chlorocyclopropenes. The latter may be intercepted with 1,3-diphenylisobenzofuran, but in the absence of trapping agent, the rearrangement to vinylcarbenes does not occur.

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页码：55 / 64

页数：10

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