Insights into the reaction of trans-diarylethenes with thionyl chloride: a practical synthesis of chlorobenzo [b] thiophenes

J Han, Q Wang, X Chang, Y Liu, Y Wang, J Meng

Index: Han, Jie; Wang, Qiong; Chang, Xiaoyong; Liu, Yuxin; Wang, Yanmei; Meng, Jiben Tetrahedron, 2011 , vol. 67, # 46 p. 8865 - 8872

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Citation Number: 5

Abstract

The reactivity of a variety of trans-1, 2-diarylethenes with thionyl chloride has been investigated. All the substrates could readily afford 3-chlorobenzo [b] thiophenes in moderate yields and a pair of threo-and erythro-1, 2-dichloro-1, 2-diarylethanes as the minor products under mild condition. The diastereoisomers of 1, 2-dichloro-1, 2-diarylethanes with a methoxy group on the benzene ring were found for the first time to be also converted into ...