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Synlett 1995; 1995(9): 933-934
DOI: 10.1055/s-1995-5140
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One-Pot Procedure for Producing Allene Carboxylic Esters from BHT Esters

Kiyoshi Tanaka, Kenji Otsubo, Kaoru Fuji*
  • *Institute for Chemical Research, Kyoto University, Uji 611, Japan, Fax 0774 33 4296; Email: fuji@sun.scl.kyoto-u.ac.jp
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Publication Date:
31 December 2000 (online)

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Various methyl allenecarboxylates were efficiently prepared from the corresponding BHT esters in a one-flask procedure which consisted the in situ generation of the ketene from the BHT ester and the successive HWE reaction with trimethyl phosphonoacetate anion in the presence of Sn2+ or Zn2+ cation.

allene - trimethyl phosphonoacetate - BHT ester - Horner-Wadsworth-Emmons reaction

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