SYNTHESIS AND CYCLOADDITIONS OF MONOMERIC SELENOBENZOPHENONE

被引：35

作者：

ERKER, G

HOCK, R

KRUGER, C

WERNER, S

KLARNER, FG

ARTSCHWAGERPERL, U

机构：

[1] MAX PLANCK INST COAL RES,W-4330 MULHEIM,GERMANY

[2] RUHR UNIV BOCHUM,FAK CHEM,W-4630 BOCHUM,GERMANY

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1990年 / 29卷 / 09期

关键词：

D O I：

10.1002/anie.199010671

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Selenobenzophenone (1), prepared from Ph2C  PPh3 and Se, is monomeric in solution and dimeric in the solid state. Cycloadditions of dienes to 1 proceed at room temperature under normal pressure as multistep reactions, as shown by the exclusive formation of cis‐2 from both trans, trans‐ and cis, trans‐hexa‐2,4‐diene. When the pressure is raised to about 12 kbar, cis, trans‐hexadiene affords 60% of trans‐2, the product of the concerted hetero‐Diels–Alder reaction. (Figure Presented.) Copyright © 1990 by VCH Verlagsgesellschaft mbH, Germany

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页码：1067 / 1068

页数：2

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