反应条件
in neat (no solvent)
slowly passing NO2 into PCl3 (cooled with ice and NaCl) with evolution of NOCl (NO2 can be dried with CaCl2 or P2O5);; fractionation between 105 and 110°C yields PCl3 and P2O3Cl4 between 200 and 230°C, repeated distillation yields pure P2O3Cl4 at 210 to 215°C, fractionation can also be performed in vacuum or high vacuum;;
