Hydrochloric Acid → HCID 53705719, compound

Participants

Reaction Steps

6-Methyl-1,2,3,4-tetrahydrocarbazole-2-carboxylic acid (10 g.) was dissolved in 300 ml. of warm ethanol and 5 ml. of 7N alcoholic hydrogen chloride was added. The solution was thoroughly mixed and allowed to remain at room temperature for 2 days. After cooling in an ice bath for 5 hours, the mixture was filtered and washed with several volumes of ethanol. Upon drying, a yield of 7.3 g. of 6-methyl-1,2,3,4-tetrahydrocarbazole-2-carboxylic acid ethyl ester, m.p. 117°-118° , was obtained.

Provenance & Evidence