CYCLOBUTENECARBOXYLIC ESTERS VIA ALUMINUM-CHLORIDE INDUCED [2+2] CYCLOADDITIONS OF 2-PROPYNOIC ESTERS TO CYCLIC OLEFINS

被引：28

作者：

FIENEMANN, H ^{[1
]}

HOFFMANN, HMR ^{[1
]}

机构：

[1] UNIV HANNOVER,INST ORGAN CHEM,D-3000 HANOVER,FED REP GER

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1979年 / 44卷 / 15期

关键词：

D O I：

10.1021/jo01329a047

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Thermal [2 + 2] cycloadditions involving unactivated olefins are quite rare. Snider has demonstrated recently that 2-propynoic esters (propiolic esters) and also 3-butyn-2-one can be activated by Lewis acids to yield [2 + 2] cycloadducts with simple alkenes. Specifically, he showed that cis-2-butene as well as trans-2-butene maintain their configuration, each giving a single cyclobutenecarboxylic ester (Scheme I). © 1979, American Chemical Society. All rights reserved.

引用

页码：2802 / 2804

页数：3

共 24 条

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