THE DIMERIZATION OF (E)-1,3-DIPHENYL-1,3-BUTADIENE PROCEEDS SUPRAFACIALLY WITH RESPECT TO BOTH COMPONENTS - EVIDENCE FOR A CONCERTED [4+2]-CYCLOADDITION

被引：6

作者：

MULZER, J

MELZER, K

机构：

[1] Institut für Organische Chemie der Freien Universität, Berlin, D-14195

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1995年 / 34卷 / 08期

关键词：

CYCLOADDITIONS; DIMERIZATIONS; DIRADICALS;

D O I：

10.1002/anie.199508951

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Despite the potential stabilization of diradical intermediates through the phenyl groups, the thermal dimerization of (E)‐1,3‐diphenyl‐1,3‐butadiene does not follow a diradical mechanism as previously assumed, but a concerted pathway. The case examined here is the dimerization of the deuteriated diene 1 giving 2, which proceeds suprafacially with regard to both diene and dienophile. (Figure Presented.) Copyright © 1995 by VCH Verlagsgesellschaft mbH, Germany

引用

页码：895 / 898

页数：4

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