Some new mesoionic compounds

Abstract

Mesoionic compounds belonging to the systems [II; X = N, Y = S; X = N, Y = O; X = N (of pyridine), Y = N; X = N, Y = NPh] have been prepared from N-substituted thiobenzoylglycines, 1,2-dihydro-2-oxo-1-pyridylacetic acid, N-substituted N-2-pyridylglycines, and N-(N-phenylbenzimidoyl)aminoacetic acids respectively. Some of their properties are described.