Facile Synthesis of a Family of H<sub>8</sub>BINOL-Amine Compounds and Catalytic Asymmetric Arylzinc Addition to Aldehydes
作者:Albert M. DeBerardinis、Mark Turlington、Jason Ko、Laura Sole、Lin Pu
DOI:10.1021/jo1000516
日期:2010.5.7
compounds, especially for the challenging ortho-substituted aromatic aldehydes. A H8BINOL-AM with 3,3′-bis-sec-amine substituents, prepared by a multistep method, was also used to catalyze the arylzinc addition to aldehydes, but it showed enantioselectivity lower than that of the compounds with tertiary amine groups. It was found for the first time that an aryl bromide, 2-bromothiophene, could be used