Hydrochloric Acid → Phosphorodichloridic acid, 2,2,2-trichloroethyl ester

Participants

Reaction Steps

To 90 g (0.59 mol) of POCl3 at 25° C. was slowly added 72 g (0.48 mol) of 2,2,2-trichloroethanol over a two hour period. The mixture was heated and maintained at 100°-125° C. for 14 hours during which time 22 g (0.60 mol) of HCl was recovered in the water scrubber. The mixture was distilled to give 72 g (0.27 mol) of 2,2,2-trichloroethyl phosphorodichloridate, bp 84° C. at 3 mm (57% yield).

Provenance & Evidence