HCID 21548669, compound → 35571-36-9

Participants

Reaction Steps

A solution of 8.1 g. of 9-benzoyl-6-benzoyloxy-1,2,3,4-tetrahydrocarbazole-3-carboxylic acid in 250 ml. of ethyl acetate over 1.5 g. of 10 percent palladium-on-charcoal was subjected to a hydrogen atmosphere at about 40 psig while being heated with a heat lamp. The reaction was stopped when a theoretical amount of hydrogen had been adsorbed (1 hour) and the resulting cooled mixture was filtered and evaporated to dryness under reduced pressure. The residue was crystallized from acetone-n-hexane to yield 4.1 g. of the title compound; m.p. 224°-227°C.

Provenance & Evidence