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Synlett 1994; 1994(3): 185-186
DOI: 10.1055/s-1994-22787
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Intramolecular Michael Addition of γ-Alkylsulfonyloxy-α,β-Unsaturated Esters by Using Higher Order Cyano Copper or Silver Amides as a Base

Naoki Asao* , Masaki Meguro, Yoshinori Yamamoto
  • *Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
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Publication Date:
22 March 2002 (online)

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Treatment of γ-alkylsulfonyloxy-α,β-unsaturated esters 1 with higher order cyano copper or silver amides gave γ-sultones 2 stereoselectively in good to high yields.