INTERACTION OF DISULFIDES AND SULFENYLCHLORIDES WITH C-N,N-DIALKYLAMINOSUBSTITUTED PHOSPHAALKENES

Interaction of dialkyl disulfides with C-N,N-dimethylaminomethylene-P-phenylphosphine 1a results in the complete cleavage of the P=C double bond and formation of S,S-dialkylphenyldithiophosphonites. Ethyl sulfenylchlorides undergoes dehydrochlorination by 1a, while phenyl sulfenylchloride cleaves the P=C bond in C-N,N-dialkylaminosubstituted phosphaalkenes with the predominant formation of either PhP(SPh)2 6 or PhP(SPh)CI 7 depending on the phosphaalkene used and reaction conditions.