Tetrachlorosilane and zinc chloride as a binary reagent for the preparation of 2-amino-6-chloropyridine-3,5-dicarbonitrile derivatives
作者:Saad S. Elmorsy、Ahmed M. Sheta、Mohammad M. A. Mashaly、Samy B. Said
DOI:10.1007/s10593-017-2089-6
日期:2017.5
A green one-pot method for efficient synthesis of 2-amino-6-chloropyridine-3,5-dicarbonitrile derivatives was developed, based on stirring of various aldehydes and malononitrile with tetrachlorosilane and zinc chlorideundersolvent-freeconditions at room temperature for 3–10 h. The effects of zinc chloride and the reactionconditions were studied. Compounds were characterized by X-ray analysis and