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Communication | Regular issue | Vol 1, No. 1, 1973, pp.47-51
Published online, 1st January, 1970
DOI: 10.3987/R-1973-01-0047
Catalytic Hydrogenation of (±)-Kreysiginone

Tetsuji Kametani,* Fumio Satoh, Keiichiro Fukumoto, Hideo Sugi, and Kazuo Kigasawa

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan

Abstract

Catalytic hydrogenation of the isomerc homoproaporphines (Va and Vb) and the deuterated dienones VIa and VIb in the presence of platinum afforded the same mixture of cyclohexanols (VIIa and VIIb). In contrast, palladium reduction of the hydrochloride of Va provided the cyclohexanone (VIIIa) while that of Vb gave a mixture of the cyclohexanone (VIIIb) and the cyclohexenone (IX).