Reaction of 3,4-dimethyl-1-oxa-6,6aλ4-diselena-2-azapentalene with tetraphosphorus decasulphide: a new molecular rearrangement. X-Ray crystal structures of 3,4-dimethyl-1-oxa-6,6aλ4-diselena-2-azapentalene, 2,4-dimethyl-1-thia-6,6aλ4-diselena-3-azapentalene, and 2,4-dimethyl-1,6-dithia-6aλ4-selena-3-azapentalene

Abstract

The title compound (1) reacts with tetraphosphorus decasulphide to give two molecular rearrangement products (2) and (3), together with compound (4); the structures of compounds (1)–(3) have been established by X-ray single crystal analyses.