REACTIONS OF SULFUR DIOXIDE WITH AMINOPHOSPHINES

Abstract

Abstract The reactions of SO2 with tris-dimethylaminophosphine, bis-dimethylaminofluorophosphine, bis-dimethylaminochlorophosphine, dimethylaminodifluorophosphine, dimethylaminodichlorophosphine, 1,3-dimethyl-2-fluoro-1,3,2-diazaphospholidine and 1,3-dimethyl-2-chloro-1,3,2-diazaphospholidine have been investigated. The complex reactions are dominated by facile oxidation of the respective phosphine to phosphoryl and thiophosphoryl derivatives. The new heterocyclic phosphines CH3 NCH2CH2N(CH3)P(O)F and CH3 NCH2CH2N(CH3)P(S)F have been isolated and characterized by NMR, infrared, and mass spectrometry.