3-Chloroaniline → 4H-Isoquinoline-1,3-dione, 2-(3-chlorophenyl)-

Participants

Reaction Steps

A mixture of homophthalic acid (45.0 g., 0.25 mole) and m-chloroaniline (31.8 g., 0.25 mole) was heated by an oil bath to 175°-180° C. for two hours. When removed from the oil bath, the reaction mixture solidified and was recrystallized twice from ethanol/ethyl acetate, giving 2-(m-chlorophenyl)-isoquinoline-1,3 (2H, 4H)-dione, 36.0 g. (58% yield), m.p. 160°-161° C.

Provenance & Evidence