ChemInform Abstract: Reaction of 3,4‐Dimethyl‐1‐oxa‐6,6aλ4‐diselena‐2‐azapentalene with Tetraphosphorus Decasulfide: 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

263ChemInform Abstract The oxadiselenaazapentalene (I) is sulfurized with P4S10 in boiling benzene to form the two rearrangement products (II) and (III), together with the oxathiaselenaaza heterocycle (IV). (Mechanism).