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Communication | Regular issue | Vol 31, No. 9, 1990, pp.1577-1580
Published online, 1st January, 1970
DOI: 10.3987/COM-90-5483
Synthetic Stuides on Nine-membered Ring Diterpenoids: Stereoselective Construction of Optically Active 1-Oxaspiro[2.8]undecenone Derivatives

Tetsuo Furuno, Hiroshi Hirota,* Masaki Takai, Hiroko Inagaki, and Takeyoshi Takahashi

*Department of Chemistry, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

Abstract

Enantiomeric isomers of 1-oxaspiro[2.8]undecenone derivative (10), which are key compounds to synthesis nine-membered ring diterpenoids, were synthesized stereoselectively from optically active monoterpene, limonene, via anionic oxy-Cope rearrangement reaction.