Regioselectivity of photoinduced intramolecular arene-olefin meta-cycloaddition

被引：0
|
作者：
Zhang, C [1 ]
Guo, XC [1 ]
Shen, XM [1 ]
机构：
[1] LANZHOU UNIV,INST ORGAN CHEM,NATL LAB APPL ORGAN CHEM,LANZHOU 730000,PEOPLES R CHINA
来源：
CHINESE CHEMICAL LETTERS | 1996年 / 7卷 / 01期
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中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The photoinduced intramolecular arene-defin meta-cycloaddition of 1 gave regio-selectively products 2a and 2b, whereas under the same conditions, 3a and 3b provided 4a and 4b respectively. The structure of the photo products was established by detailed 2D-NMR methodology. The observed regioselectivity was rationalized in terms of the stabilization of the zwitterionic intermediates by alkyl group at the phenyl ring.
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页码：1 / 4
页数：4
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