196 (1958).(a) a test of the bimolecular condensation mechanism (involving XXXI as an intermediate) and (b) a study of the possible role of intermediate unsymmetrical disulfides, such as XXXII, in the conversion of I to V. 1, 2-Dibeazoylethylene (XXXI) as a Possible Intermediate.-Since the bimolecular mechanism implied that V was produced from XXXI by reduction witli polysulEde ion, this aspect was initially tested. Indeed, incubation of an ...