Ammonium Hydroxide → HCID 22748787, compound

Participants

Reaction Steps

Combine 49.5 g. (0.11 moles) of 3,5-bis-(diphenylmethyl)-2-pyridone (prepared as described in step B) with 105 ml. of phenylphosphonic dichloride and heat the reaction mixture with stirring at 200°-210° C. for 6 hours. Pour the reaction mixture onto ice and basify with ammonium hydroxide. Extract with ethyl ether, dry the extract and evaporate to yield a residue which is crystallized from ethanol to yield the product of this step, yield about 40 g., m.p. 131°-133° C.

Provenance & Evidence