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Synthesis 1991; 1991(1): 11-14
DOI: 10.1055/s-1991-26365
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Convenient Methods for the Preparation of Sulfur Substituted Allenecarboxylates

Martin Conrads* , Jochen Mattay
  • *Organisch-Chemisches Institut der Westfälischen Wilhelms-Universität Münster, Orléansring 23, D-4400 Münster, Germany
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Publication Date:
17 September 2002 (online)

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2-Sulfinyl- and 2-sulfonylallenecarboxylates, as new 1,1-diacceptor substituted allenes, were prepared starting from methyl 4-hydroxy-4-methyl-2-pentynoate by a [2,3]-sigmatropic rearrangement. The sulfoxides could be reduced to the corresponding allenyl sulfides. A 2(5H)-furanone derivative was prepared by a side-reaction.