Heterocyclic Compounds
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ChemInform Abstract: Preparation of Novel 6-Substituted-4-hydroxy-2H-pyran-2-one-3-carboxamides and Esters via Palladium-Catalyzed Cross-Coupling Methodology.
First published: 02 August 2010
Abstract
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ChemInform Abstract
Pd-catalyzed cross-coupling of pyranone (I) with tributyltin reagents allows the moderate-yield efficient preparation of 6-substituted pyranone derivatives (III) (9 examples). Derivative (IIIb) reacts with benzylamine or ethanol to provide a novel synthesis of the title structures.
