3-(1-Benzylpiperidin-4-yl)-1,3-dihydroimidazo[4,5-c]quinolin-2-one → 3-Piperidin-4-yl-1,3-dihydroimidazo[4,5-c]quinolin-2-one

Participants

Reaction Steps

A mixture of 44.0 g (0.123 mol) 3-(1-benzylpiperidin-4-yl)-1,3-dihydroimidazo[4,5-c]quinolin-2-one and 10.0 g palladium (Pd/C 10%) in 500 mL methanol was hydrogenated for 16 h at 50 C in a hydrogen atmosphere of 50 psi. After filtration of the reaction mixture the solvent was eliminated in vacuo. The product was precipitated out by the addition of isopropanol. It was filtered off and dried.

Provenance & Evidence