HCID 178418361, compound → Tetrahydro-6-(phenylmethyl)-1H-pyrrolo(3,4-b)pyridine-5,7(2H,6H)-dione

Participants

Reaction Steps

47.6 g (0.2 mol) of pyridine-2,3-dicarboxylic acid N-benzylimide (British Patent 1,086,637; Chem. Abstr. 68, 95695w) are hydrogenated in 400 ml of glycol monomethyl ether over 15 g of ruthenium-on-active charcoal (5% strength) at 90° C. under 100 bar until the calculated amount of hydrogen has been taken up. The catalyst is then filtered off and the filtrate is concentrated on a rotary evaporator. 44 g of an oily crude product are obtained.

Provenance & Evidence