4-tert-Butylbenzaldehyde → 3-{3-[(4-tert-Butyl-benzylamino)-methyl]-phenyl}-propionic acid methyl ester

Participants

Reaction Steps

The title compound of Step A was prepared from 3-(3-aminomethyl-phenyl)-propionic acid methyl ester hydrochloride salt, of Preparation 44, and 4-tert-butyl-benzaldehyde using the method described in Example 1, Step A except the imine was formed in MeOH at reflux over 3 h. 1H NMR (400 MHz, CDCl3) δ 7.35 (m, 2H), 7.25 (m, 2H), 7.18 (m, 2H), 7.08 (d, 1H), 3.79 (s, 2H), 3.77 (s, 2H), 3.66 (s, 3H), 2.94 (t, 2H), 2.63 (t, 2H), 1.31 (s, 9H); MS 340 (M+1).

Provenance & Evidence