pyridine; trichlorophosphate in benzene 2 h; Heating;

zinc sesquiphosphide; oxygen; copper dichloride T=60°C; P=750.06 Torr; Title compound not separated from byproducts;

sodium hypophosphite; copper dichloride T=24.9°C; 246 h;

oxygen; copper dichloride in hydrogenchloride byproducts: iso-amyl chloride, H2O; reaction of red phosphorus with a mixt. of alcohol, CuCl2, HCl and oxygen under argon; the trialkyl phosphate is isolated after removal of the low-boiling fractions by distn. in vac., gas-liquid chromy.;

copper dichloride in further solvent(s) Kinetics;