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Synlett 1998; 1998(4): 399-401
DOI: 10.1055/s-1998-1673
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New and Convenient Synthesis of Pyrrolo[1,2-a]benzimidazoles and Indolizinones Based on Regioselective Cyclization Reactions of Heterocyclic Dianions

Peter Langer* , Manfred Döring
  • *Institut für Organische Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
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Publication Date:
31 December 2000 (online)

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A new and regioselective annulation method for the preparation of substituted pyrrolo[1,2-a]benzimidazoles and indolizinones is reported.

ambident dianions - nitrogen heterocycles - [5]radialenes - cyclization reactions - oxalimidoyl dichlorides