PHOTOCHEMISTRY OF TRIVINYLBORANES - PREPARATION OF ANTI-ADDUCTS OF HYDROBORANES AND ALKYNES

被引：4

作者：

GANO, JE

SREBNIK, M

机构：

[1] Bowman-Oddy Laboratories, The Department of Chemistry The University of Toledo, Toledo

来源：

TETRAHEDRON LETTERS | 1993年 / 34卷 / 31期

关键词：

D O I：

10.1016/S0040-4039(00)74038-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Trivinylboranes, which are conveniently prepared from the addition of diborane to acetylenes, are found to readily undergo photochemical Z/E isomerization. Since the chromaphore of the E-isomer is highly twisted by steric strain, photochemical conditions can completely convert the Z-isomer to the E-isomer. This high yield, two step process, provides an efficient procedure to bring about an anti-addition of hydroboranes to acetylenes.

引用

页码：4889 / 4892

页数：4

共 9 条

[1]

BROWN HC, 1989, FORMATION CARBON BOR, P35

[2]

Clark T., 1985, HDB COMPUTATIONAL CH

[3] THE DEVELOPMENT AND USE OF QUANTUM-MECHANICAL MOLECULAR-MODELS .76. AM1 - A NEW GENERAL-PURPOSE QUANTUM-MECHANICAL MOLECULAR-MODEL [J].