Unexpected Formation of Benzothiazoles in the Synthesis of New Heterocycles: Benzo-1,2,4-dithiazines
作者:Dagmar Fajkusova、Pavel Pazdera
DOI:10.1055/s-2008-1067008
日期:2008.4
sulfur-sulfur bond formation. 2-Aminothiophenol, when allowed to react with isothiocyanates, provided benzothiazoles. 2,2'-Diaminodiphenyl disulfide underwent cyclizations very readily without any reducing agent to give, according to the reaction conditions, benzothiazoles or benzo-1,2,4-dithiazines. The developed proceduře offers a simple and convenient way to prepare the title compounds in very good to