ChemInform Abstract: 6‐Thia‐1‐aza‐5λ5‐phosphabicyclo(3.2.0)hept‐3‐enes and Isothiocyanatophosphine Sulfides from (Methylidenamino)phosphines, Carbon Disulfide, and Acetylene or Ethylene Derivatives.

Abstract

Reaction of the (methylidenamino)phosphine (Ia) with excess carbon disulfide (II) gives within a few minutes the thiazaphosphete (III) as a yellow precipitate which can be filtered in the absence of air and used for the subsequent reactions.