Asymmetric Intermolecular Boron Heck-Type Reactions via Oxidative Palladium(II) Catalysis with Chiral Tridentate NHC-Amidate-Alkoxide Ligands
作者:Kyung Soo Yoo、Justin O’Neill、Satoshi Sakaguchi、Richard Giles、Joo Ho Lee、Kyung Woon Jung
DOI:10.1021/jo901977n
日期:2010.1.1
Chiral dimeric tridentate NHC-amidate-alkoxide palladium(II) complexes, 3a and 3b, effected oxidative boron Heck-type reactions of aryl boronicacids with both acyclic and cyclic alkenes at room temperature to afford the corresponding coupling products with high enantioselectivities. The high degree of enantioselection, far superior to existing methods, stems from differences in the nonbonding interactions