Reaction of 2-Imino-2H-chromene-3-carboxamide with Phosphorus Isothiocyanates: First Synthesis of Novel Chromeno[2,3-d]pyrimidinyl and Bis(chromeno[2,3-d]pyrimidinyl)phosphines and Chromeno[2 ',3 ':4,5]pyrimido[2,1-d][1,3,5,2]triazaphosphinine

摘要

Novel chromeno[2,3-d]pyrimidinyl and bis(chromeno[2,3-d]pyrimidinyl)phosphines and chromeno[2 ',3 ':4,5]pyrimido[2,1-d][1,3,5,2]triazaphosphinine were obtained in a simple one-pot procedure via treatment of 2-imino-2H-chromene-3-carboxamide with phenyl phosphorus isothiocyanates. Possible reaction mechanisms were proposed. The structures of the obtained products were confirmed by elemental analyses and spectral tools.