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Communication | Regular issue | Vol 38, No. 6, 1994, pp.1237-1240
Published online, 1st January, 1970
DOI: 10.3987/COM-94-6734
Synthesis of an Optically Active 1-Azaspiro[4.4]non-8-en-7-one

Masazumi Ikeda,* Ken-ichiro Matsubayashi, Takayuki Imoto, Kaoru Kitao, Hiroyuki Ishibashi, and Tatsunori Sato

*Kyoto Pharmaceutical University, Misasagi-Shichonocho, Yamashina, Kyoto 607-8414, Japan


The 1-azaspiro[4.4]one-8-en-7-one (7) and its (R)-9-(3,4-methylenedioxyphenyl)-substituted derivative (12) have been synthesized using an intramolecular aldol condensation of the pyrrolidine derivatives (6) and (11) as a key step.