Chlorodiphenylphosphine → Diphenylphosphine

Participants

Reaction Steps

By Hydrolysis of Diphenylphosphinous Chloride. Diphenylphosphinous chloride (700 g, 3.17 mols) is added with rapid stirring to 1400 ml of distilled water. The temperature rises to 70° C. The solution is heated at reflux 1 hour, then cooled. The lower organic layer is separated from the water, dried, and distilled in vacuum giving diphenylphosphine (207 g, 70 percent yield), b.p. 151° C/10 mm. From the residue, 327 g (95 percent yield) of diphenylphosphonic acid is obtained by recrystallization from ethanol.

Provenance & Evidence