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Communication | Regular issue | Vol 24, No. 6, 1986, pp.1527-1530
Published online, 1st January, 1970
DOI: 10.3987/R-1986-06-1527
Studies in Cycloaddition Reactions: Regiospecific Cycloaddition Reactin of Nitrile Imines with 2H-1-Benzopyran-2-thione

Arpan Kumar Baruah, Dipak Prajapati, and Jagir Singh Sandhu*

*Division of Drug and Pharmaceutical Chemistry, Regional Research Laboratory, Jorhat 785 006, Assam, India

Abstract

Nitrile imines (1) reacted with 2H-1-benzopyran-2-thione to afford cycloadducts (3) in good yields. There was no evidence for the formation of any other regioisomer or the reaction occurring at the thione site.