6-[3-(Imidazol-1-yl)prop-1-yn-1-yl]-3,4-dihydrocarbostyril → 6-[3-(Imidazol-1-yl)prop-1-en-1-yl]-3,4-dihydrocarbostyril

Participants

Reaction Steps

A suspension of 75 mg of 5% palladium on barium sulfate catalyst in 8 ml of pyridine was stirred under hydrogen for 15 minutes. A solution of 502 mg of 6-[3-(imidazol-1-yl)prop-1-yn-1-yl]-3,4-dihydrocarbostyril in 3 ml of pyridine was added and the mixture stirred under hydrogen until the theoretical volume of hydrogen had been absorbed. The reaction mixture was filtered and the solvent removed from the filtrate under reduced pressure to give a residue which was recrystallized from a mixture of methanol and ethyl acetate to give 6-[3-(imidazol-1-yl)prop-1-en-1-yl]-3,4-dihydrocarbostyril, m.p. 158°-160° C.

Provenance & Evidence