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Note | Regular issue | Vol 45, No. 10, 1997, pp.1979-1988
Published online, 1st January, 1970
DOI: 10.3987/COM-96-7676
A New Route to Quinolone and Indole Skeletones via Ketone- and Ester-Imide Cyclodehydration Reactions

Guncheol Kim* and Gyochang Keum

*Organic Chemistry Division, Hanhyo Institutes of Technology, Jeonmin-Dong 461-6, Yusong-gu, Taejon 305-390, Korea


Ketone-imide cyclodehydration reactions of aromatic succinimide and phthalimide (7, 8) have aforded quinolone acids (11, 12). Further transformation of the acids provided the corresponding esters (13, 14) and vinylogous urethanes (9, 10). Similarly, ester-imide cyclodehydration reactions of aromatic imide esters (19, 20) have afforded indole acids (23, 24).