M-oh&m Vd 32. ... with either those of authentic samples (1,3diphenylpropanone and the compounds described above) or those of compounds reported in the literature:* l2-diphenylethane, 1,2di(m-methylphenylmthane, l,2-di(p-methylphenyl)ethane ... Tetrahedron Letters 815 (1975 ...