Single-step synthesis of cyclopentenones from (3-alkoxycarbonyl-2-oxo-propylidene)triphenylphosphorane and 1,2-diacylethylenes

  • Hatanaka M
  • Ishida A
  • Tanaka Y
 et al. 
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(3-Alkoxycarbonyl-2-oxo-propylidene)triphenylphosphorane reacts with 1,2-diacylethylenes to give cyclopentenones in a single operation. Use of a chiral acylmethylenemalonate led to formation of optically active cyclopentenone in a highly diastereoselective fashion.

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  • Minoru Hatanaka

  • Akiharu Ishida

  • Yasuhiro Tanaka

  • Ikuo Ueda

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