Hydrochloric Acid → HCID 21563738, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of the compound prepared in step (a) (0.03 mole), phthalic anhydride (0.03 mole) and 50 ml. of benzene were stirred in an ice bath. Aluminum chloride (0.065 mole) was slowly added to the mixture, and after addition, the mixture was stirred for 30 minutes at 0°C. and then warmed to 50°C. and stirred for 3 hours. After cooling, 3N hydrochloric acid was added to decompose the aluminum complex. The yellow solid that formed was filtered and stirred in warm dilute ammonium hydroxide. The hydroxide solution was filtered, and the filtrate was neutralized with dilute hydrochloric acid. The solid obtained upon neutralization was recrystallized from xylene to give 3-(o-carboxybenzoyl)-6-methyl-9-cyanoethylcarbazole as white crystals, melting point 190°C.

Provenance & Evidence