Diethylamine Dess–Martin periodinane: an efficient catalyst–oxidant combination in a sequential, one-pot synthesis of difficult to access 2-amino-3,5-dicarbonitrile-6-sulfanylpyridines at ambient temperature

A problem solving approach towards high yielding synthesis of 2-amino-3,5-dicarbonitrile-6-sulfanylpyridines is described. Simple isolation and avoidance of chromatographic purification are the noteworthy advantages.