“…1 H NMR (250 MHz, CDCl 3 ): = 0.92 (d, J = 6.1 Hz, 3 H), 1.22 (d, J = 6.2 Hz, 3 H), 1.26 (d, J = 6.2 Hz, 3 H), 1.32 (d, J = 6.2 Hz, 3 H), 4. 46 Diphenyl (Phenyl(phenylamino)methyl)phosphonate (4o) 35 Yield: 85% (353 mg); white solid; mp 152-153 °C (Lit. [35] mp 150-152 °C).…”