Regioselective Synthesis of Coumarin and Quinolone-Annulated Linearly Fused Heterocycles by the Intramolecular Heck Reaction of the Biaryl Systems

Krishna   C.   Majumdar; Buddhadeb      Chattopadhyay; Amarta   K.   Pal

doi:10.2174/157017808784049579

Abstract

A simple convergent regioselective synthesis of hitherto unreported coumarin- and quinolone-annulated heterocycles in excellent yields has been achieved by the palladium-catalyzed intramolecular Heck reaction.

Keywords: Heck reaction, Pd(0) catalysis, radical reaction, organotin reagent, intramolecular cyclization

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Letters in Organic Chemistry

Title: Regioselective Synthesis of Coumarin and Quinolone-Annulated Linearly Fused Heterocycles by the Intramolecular Heck Reaction of the Biaryl Systems

Volume: 5 Issue: 4

Author(s): Krishna C. Majumdar, Buddhadeb Chattopadhyay and Amarta K. Pal

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Keywords: Heck reaction, Pd(0) catalysis, radical reaction, organotin reagent, intramolecular cyclization

Abstract: A simple convergent regioselective synthesis of hitherto unreported coumarin- and quinolone-annulated heterocycles in excellent yields has been achieved by the palladium-catalyzed intramolecular Heck reaction.

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Majumdar C. Krishna, Chattopadhyay Buddhadeb and Pal K. Amarta, Regioselective Synthesis of Coumarin and Quinolone-Annulated Linearly Fused Heterocycles by the Intramolecular Heck Reaction of the Biaryl Systems, Letters in Organic Chemistry 2008; 5 (4) . https://dx.doi.org/10.2174/157017808784049579