反应详情

4-(4-Benzamidobutyl)-5-methylimidazole-2-thione (4.12 g, 0.01425 mol) in absolute ethanol (80 ml) was desulphrised with Raney nickel (approximately 18 g). Filtration followed by concentration under reduced pressure gave 4-(4-benzamidobutyl)-5-methylimidazole (3.23 g, 88%) m.p. 124°-128°.

1. filtrationFiltration
2. concentrationfollowed by concentration under reduced pressure