PHOTOCYCLOADDITIONS TO 1-THIOCOUMARIN

被引：11

作者：

KARBE, C ^{[1
]}

MARGARETHA, P ^{[1
]}

机构：

[1] UNIV HAMBURG,INST ORGAN CHEM,W-2000 HAMBURG 13,GERMANY

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1991年 / 57卷 / 1-3期

关键词：

D O I：

10.1016/1010-6030(91)85018-C

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Irradiation (lambda = 350 nm) of 1-thiocoumarin (1b) in benzene or acetonitrile produces one photodimer (head-to-head, anti) selectively. In the presence of 2,3-dimethylbut-2-ene, a 4:1 mixture of cis- and trans-fused [2 + 2] cycloadducts is obtained. Cycloaddition to 2-methylpropene proceeds regioselectively, the product being established by a proton nuclear magnetic resonance (nuclear Overhauser effect) experiment.

引用

页码：231 / 233

页数：3

共 7 条

[1] PHOTOCHEMISTRY OF THE PSORALENS [J].