copper; potassium carbonate; glycerol T=195°C; 8 h;

potassium carbonate in ethylene glycol

sodium hydroxide in ethanol; chloroform; water

trichlorophosphate 1.) 40-45 deg C, 45 min, 2.) r.t., 16 h, then 70 deg C, 6 h; Yield given. Multistep reaction;

1: 1.) POCl3 / 1.) 40-45 deg C, 45 min, 2.) r.t., 16 h, then 70 deg C, 6 h 2: 1.) 30percent H2O2, 85percent HCOOH, 2.) NaOH / 1.) -5 deg C, 3-4 h then -10 deg C, 16 h, 2.) 50 deg C, 30 min View Scheme