Abstract High yields (93–96%) in a one-step syntheses of CH3C (CH2OP (o-O2C6H4)) 3 (3), CH3C (CH2OPOCH2C (CH3) 2CH2O) 3 (4) and CH3C (CH2N (CH3) POCH2C (CH3) 2CH2O) 3 (5) are reported. Compounds 4 and 5 at 100–110° give P (OCH2) 3CCH3 (2) and P (N (CH3) CH2) 3CCH3 (7) in 97 and 96% yield, respectively, plus the diphosphite (CH3) 2C (CH2O) 2POCH2C (CH3) 2CH2OP (OCH2) 2C (CH3) 2 (8). Compound 8 was also ...