Enantioselective Catalysis of Ketoester-ene Reaction of Silyl Enol Ether to Construct Quaternary Carbons by Chiral Dicationic Palladium(II) Complexes
作者:Koichi Mikami、Yuji Kawakami、Katsuhiro Akiyama、Kohsuke Aikawa
DOI:10.1021/ja076539f
日期:2007.10.1
complex-catalyzed ketoester-ene reaction with silyl enol ether can be achieved to produce an ene product with a quaternary carbon center in high yield and enantioselectivity. Even lower catalyst loading (up to 0.01 mol%) can be performed without a significant decrease in yield and enantioselectivity; this will open doors to industrial applications of chiral Lewis acid catalysis.
可以实现双阳离子 SEGPHOS-Pd 配合物催化的酮酯 - 烯与甲硅烷基烯醇醚反应,以高产率和对映选择性生产具有季碳中心的烯产物。甚至可以进行更低的催化剂负载量(高达 0.01 mol%),而不会显着降低产率和对映选择性;这将为手性路易斯酸催化的工业应用打开大门。