3-[4-(benzyloxy)phenyl]-1-propyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one → 3-(4-hydroxyphenyl)-1-propyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

Participants

Reaction Steps

A mixture of 3-[4-(benzyloxy)phenyl]-1-propyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (1.5 g) and 10% Pd—C (0.444 g) in EtOH (40 mL) was hydrogenated under balloon pressure at room temperature for 3 h. The catalyst was removed by filtration and the filtrate was concentrated in vacuo to give 3-(4-hydroxyphenyl)-1-propyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (1.05 g) as a light brown solid.

Provenance & Evidence