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Communication | Regular issue | Vol 2, No. 5, 1974, pp.645-648
Published online, 1st January, 1970
DOI: 10.3987/R-1974-05-0645
Reaction of 3-Amino-2-cyclohexen-1-ones with Dibenzoylethylene: Regioselective Synthesis of 4-Oxotetrahydroindoles and 5-Oxotetrahydroquinolines

Yasumitsu Tamura,* Toshiko Sakaguchi, Tomomi Kawasaki, and Yasuyuki Kita

*Faculty of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Toyonaka, Osaka 560-0043, Japan


Reaction of 3-amino-2-cyclohexen-1-ones (Ia-c) with dibenzoylethylene gave either 4-oxotetrahydroindoles (IIa-c) or 5-oxotetrahydroquinolines (IVa-c) by the selection of reaction conditions.