PREPARATION OF STERICALLY PROTECTED 3,4-BIS(PHOSPHINIDENE)CYCLOBUTENES AND THEIR ISOMERISM

被引：50

作者：

YOSHIFUJI, M

TOYOTA, K

MURAYAMA, M

YOSHIMURA, H

OKAMOTO, A

HIROTSU, K

NAGASE, S

机构：

[1] OSAKA CITY UNIV, FAC SCI, DEPT CHEM, SUMIYOSHI KU, OSAKA 558, JAPAN

[2] YOKOHAMA NATL UNIV, FAC EDUC, DEPT CHEM, YOKOHAMA, KANAGAWA 240, JAPAN

来源：

CHEMISTRY LETTERS | 1990年 / 12期

关键词：

D O I：

10.1246/cl.1990.2195

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Sterically protected bis(phosphinidene)cyclobutenes were prepared starting from the diphosphane and their isomerism involving a 1,6-diphosphahexa-1,2,4,5-tetraene intermediate, which is both cumulative and conjugated, was studied. X-Ray crystallographic study of the (E,Z)-phosphinidenecyclobutene shows that the molecule suffers from large steric congestion between intra- and inter-substituents.

引用

页码：2195 / 2198

页数：4

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