Collect. Czech. Chem. Commun.
1995, 60, 1065-1069
https://doi.org/10.1135/cccc19951065
Synthesis of Heterocyclic Ketene N,S-Acetals and Their Reactions with α,β-Unsaturated Nitriles
Ahmed K. El-Shafei, Ahmed M. M. El-Saghier and Ahmed M. Soliman
Chemistry Department, Faculty of Sciences, Sohag, Egypt
Abstract
Substituted 3H-pyrido[2,1-b]benzoxazoles and 3H-pyrido[2,1-b]benzothiazoles were prepared by base catalyzed cycloaddition of benzylidenemalonitrile with benzoxazolylidene- or benzothiazolylidenepentane-1,3-dione.
