Reactions of triphenylphosphine with S4N3Cl

Article abstract of DOI:10.1021/ic50069a006

It has been shown that S₄N₃Cl gives a complex series of reactions in which [(C₆H₅)₃P=NP(C₆H₅) ₃]Cl (I), [(C₆H₅)₃PNH₂]Cl (II), and [{(C₆H₅)₃PN}₃S]Cl₃ (III) are produced. Compound III reacts with two molecules of triphenylphosphine giving [{(C₆H₅)₃PN}₃S]Cl ₃·2P(C₆H₅)₃ (IV), which crystallizes out of acetone with 2 moles of acetone. N-Chlorotriphenylphosphinimine is suggested as a probable intermediate in these reactions.