Synthesis of Oxepin-Annulated Quinolone Heterocycles by Ruthenium Catalyzed Enyne Bond Reorganization/Diels-Alder Reaction

Krishna C. Majumdar; Pradip Debnath; Srikanta Samanta

doi:10.2174/157017807781212067

Abstract

Synthesis of oxepin-annulated quinolone heterocycles by the combination of Claisen rearrangement, the ringclosing metathesis and Diels-Alder reaction is described. The RCM or RCEM proceeded smoothly in the presence of Grubbs first generation catalyst at room temperature under nitrogen atmosphere.

Keywords: Claisen rearrangement, ring-closing metathesis, enyne metathesis, oxepine, oxacine, Diels-Alder reaction, quinolone derivatives

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Letters in Organic Chemistry

Title: Synthesis of Oxepin-Annulated Quinolone Heterocycles by Ruthenium Catalyzed Enyne Bond Reorganization/Diels-Alder Reaction

Volume: 4 Issue: 5

Author(s): Krishna C. Majumdar, Pradip Debnath and Srikanta Samanta

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Keywords: Claisen rearrangement, ring-closing metathesis, enyne metathesis, oxepine, oxacine, Diels-Alder reaction, quinolone derivatives

Abstract: Synthesis of oxepin-annulated quinolone heterocycles by the combination of Claisen rearrangement, the ringclosing metathesis and Diels-Alder reaction is described. The RCM or RCEM proceeded smoothly in the presence of Grubbs first generation catalyst at room temperature under nitrogen atmosphere.

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Krishna C. Majumdar , Pradip Debnath and Srikanta Samanta , Synthesis of Oxepin-Annulated Quinolone Heterocycles by Ruthenium Catalyzed Enyne Bond Reorganization/Diels-Alder Reaction, Letters in Organic Chemistry 2007; 4 (5) . https://dx.doi.org/10.2174/157017807781212067