Abstract
| - The sequential rhodium-catalyzed addition/lactonization reaction of organoboron derivatives to alkyl4-hydroxy-2-alkynoates would constitute a novel methodology for the synthesis of 4-aryl/heteroaryl/vinyl-2(5H)-furanones with an excellent control of the regio- and chemoselectivity. The role played byrhodium precatalyst, ligands, reaction medium, and the feature of organoboron derivatives has beenexplored.
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