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Synlett 2001; 2001(9): 1437-1439
DOI: 10.1055/s-2001-16772
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Regio- and Diastereoselective Synthesis of N-Aryl-5-alkylidene-5H-pyrrol-2-ones by a new Domino Reaction of 1,3-Dicarbonyl Dianions with Oxalic Acid-bis(imidoyl)chlorides

Peter Langer* , Manfred Döring
  • *Institut für Organische Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
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Publication Date:
28 August 2001 (online)

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The reaction of dilithiated dicarbonyl compounds with oxalic acid-bis(imidoyl)chlorides results in regio- and stereoselective formation of 5-(alkylidene)-5H-pyrrol-2-ones.

dianions - domino reactions - oxalic acid derivatives - pyrroles - regioselectivity

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