1-(4-Nitrobenzoyl)-1,2,3,4-tetrahydroquinoline → (4-aminophenyl)(3,4-dihydroquinolin-1(2H)-yl)methanone

Participants

Reaction Steps

To a solution of 10% Pd--C (5 g) in ethanol (500 ml) is added 1-(4-nitrobenzoyl)-1,2,3,4-tetrahydroquinoline (53.4 g) and the mixture is subjected to catalytic reduction at ordinary temperature under atmospheric pressure of hydrogen. After the reduction, 10% Pd--C is removed by filtration, and the filtrate is concentrated under reduced pressure to give 1-(4-aminobenzoyl)-1,2,3,4-tetrahydroquinoline (46.7 g) as yellow powder, m.p. 185°-188° C.

Provenance & Evidence