HCID 21399939, compound → HCID 21399932, compound

Participants

Reaction Steps

2.05 g. of the ethyl ester of 6-methoxy-1,2,3,4-tetrahydrocarbazole-1-carboxylic acid is dissolved in 20 ml. of xylene, mixed with 2 g. of 10% palladium-carbon catalyst, and refluxed for 4 hours. After the reaction mixture has cooled, the catalyst is filtered off, the solution is concentrated under vacuum, the residue is recrystallized from benzene, and 1.5 g. of the ethyl ester of 6-methoxycarbazole-1-carboxylic acid is thus produced, m.p. 107° C.

Provenance & Evidence