Sequential Rhodium-Catalyzed Stereo- and Regioselective Addition of Organoboron Derivatives to the Alkyl 4-Hydroxy-2-Alkynoates/Lactonizaction Reaction
作者:Maria Alfonsi、Antonio Arcadi、Marco Chiarini、Fabio Marinelli
DOI:10.1021/jo701629t
日期:2007.12.1
The sequential rhodium-catalyzed addition/lactonization reaction of organoboron derivatives to alkyl 4-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 by rhodium precatalyst, ligands, reaction medium, and the feature of organoboron derivatives has been
有机硼衍生物与4-羟基-2-炔烃烷基酯的铑相继催化加成/内酯化反应将构成一种合成4-芳基/杂芳基/乙烯基-2(5 H)-呋喃酮的新颖方法区域和化学选择性。研究了铑的预催化剂,配体,反应介质以及有机硼衍生物的特征。