Reactions between diphenylmethyleneaminolithium Ph2CNLi, and the sulphur-chlorine compounds SCl2, S2Cl2, SOCl2, SO2Cl2 and (NSCl)3

Reactions between diphenylmethyleneaminolithium, Ph2CNLi, and the chlorides SCl2, S2Cl2, SOCl2 and SO2Cl2 have been used to prepare the compounds (Ph2CN)2S, (Ph2CN)2S2, Ph2CNC(NSO)Ph2 and (Ph2CN)2SO2 respectively. The disulphide (Ph2CN)2S2 also results from the reaction between Ph2CNLi and trithiazyltrichloride (NSCl)3. Features of the IR and mass spectra of these products are discussed, with particular reference to their sulphur-nitrogen bond orders.