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Synthesis 1986; 1986(11): 891-893
DOI: 10.1055/s-1986-31818
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ß-Lithioacrylate Equivalents for the Synthesis of (±)-Eldanolide

Nabin C. Barua* , Richard R. Schmidt
  • *Fakultät Chemie, Universität Konstanz, D-7750 Konstanz, West Germany
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Publication Date:
20 August 2002 (online)

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Direct lithiation of ß-phenylthioacrylic acid and of methyl propiolate affords useful ß-lithioacrylate and ß-lithiopropionate equivalents. This is demonstrated in this paper in a convenient synthesis of (±)-eldanolide (±)-1 and in the transformation of butenolide (±)-7 into butyrolactone (±)-9, respectively.