Benzocaine → Ethyl 4-[(8-phenyloctyl)amino]benzoate

Participants

Reaction Conditions

Reaction Steps

A mixture of 14.9 g. of ethyl p-aminobenzoate, 50 ml. of hexamethylphosphoramide, 10.1 g. of 8-phenyloctyl chloride and 6.75 g. of sodium iodide is stirred and heated in an oil bath at 110° C. for 24 hours. The mixture is chilled, diluted with 50 ml. of water and 25 ml. of ethanol, chilled and filtered. The solid is washed with ethanol-water (1:1) and with water to give crystals, m.p. 61°-68° C. Recrystallization from ethanol gives white crystals, m.p. 75°-76° C.

Provenance & Evidence