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Synthesis 1986; 1986(10): 847-849
DOI: 10.1055/s-1986-31801
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Synthesis of Cycloalkanones by Olefin Cyclization Initiated by Pummerer Reaction Products

Hiroyuki Ishibashi* , SUZUMI. Harada, Motofumi Okada, Masazumi Ikeda, Ko-ichi Ishiyama, Hiroshi Yamashita, Yasumitsu Tamura
  • *Kyoto Pharmaceutical University, Misasagi, Yamashina, Kyoto 607, Japan
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Publikationsdatum:
20. August 2002 (online)

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On treatment with trifluoroacetic anhydride, 1-methylsulfinyl-5-hepten-2-one undergoes cyclization via its Pummerer reaction product to give 3-ethenyl-2-(methylthio)cyclopentanone. This scope of the reaction for synthesis of cyclohexanone and cycloheptanone derivatives was explored.