• Reacts with Li metal in liquid ammonia to give the Li diphenylphosphide: Tetrahedron Lett., 21, 3535 (1980). Reaction with vinyl lithium intermediates from the reaction of alkyllithiums with sulfonylhydrazones (see p-Toluenesulfonyl hydrazide, A13529) gives vinylphosphines: Tetrahedron Lett., 22, 4619 (1981).