Phenethylamine → 3,4-dimethoxy-N-(2-phenylethyl)benzamide

Participants

Reaction Steps

A solution of 3,4-dimethoxybenzoic acid (9.1 g, 0.05 mol) and carbonyldiimidazole (8.1 g, 0.05 mol) in 100 ml of THF was stirred for 3 h protected from moisture. The resulting solution was treated with 2-phenylethylamine (6.1 g, 0.05 mol) dissolved in 10 ml of THF. After 2 h of stirring, the solvent was evaporated and the solid residue was washed with dilute NaOH, dilute HCl, and water. The crude Al was recrystallized from 75 ml of EtOH to afford 9.35 g (57%) of N-(3,4-dimethoxybenzoyl)-2-phenylethylamine, mp 123-124°.

Provenance & Evidence