Ammonia → Methoxydiphenylphosphine

Participants

Reaction Steps

210 g (6.56 mol) of absolute ethanol are cooled to -15° C. under a nitrogen atmosphere. 200 g (0.907 mol) of chloro(diphenyl)phosphine are then added dropwise at this temperature with vigorous stirring. 18 g (1.06 mol) of ammonia gas are then introduced. The mixture is then stirred without cooling for 10 hours and filtered by suction. The filtrate is freed from methanol and excess ammonia in vacuo. The residue is filtered by suction through a glass frit. 143 g of crude methyl diphenylphosphinite are obtained. This corresponds to a yield of 73% of theory.

Provenance & Evidence