Hydrochloric Acid → HCID 53634770, compound

Participants

Reaction Steps

To a solution of 32.0 g (86.6 mmol) of 2-(N-tert-butoxycarbonyl-N-methyl-amino)-3,3-diphenyl-propanoic acid methyl ester in 400 ml of ether there are added in succession 3.0 g (130.0 mmol) of lithium borohydride in portions and 5.3 ml (130 mmol) of methanol dropwise (foams!). The reaction mixture is stirred under reflux for 3 hours, then cooled in an ice bath, and 40 ml of 0.5N hydrochloric acid are added (foams!). After further dilution with water, the mixture is extracted twice with methylene chloride. The combined organic phases are dried over sodium sulfate and concentrated by evaporation, yielding the title compound in the form of a white foam. TLC: methylene chloride/methanol (95:5) Rf=0.46; FAB-MS (M+H)+=342.

Provenance & Evidence