Adducts of 2??aminothiophenol with acetylenic nitriles or esters and their conversion into benzothiazoles and/or 1, 4??benzothiazines

G Liso, G Trapani, V Berardi, A Latrofa…

Index: Liso; Trapani; Berardi; et al. Journal of Heterocyclic Chemistry, 1980 , vol. 17, # 4 p. 793 - 796

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Citation Number: 19

Abstract

Abstract The reaction between 2-aminothiophenol 1 and acetylenic nitriles or esters 2a-d leads to the vinyl thio-ethers 3a-d. The conversion of 3 into benzothiazoles 8 and/or 1, 4- benzothiazines 9, in boiling dimethyl sulfoxide, has been achieved. A possible pathway involving benzothiazolines 5 as key intermediates is suggested.