Expanding the Scope of Cinchona Alkaloid-Catalyzed Enantioselective α-Aminations of Oxindoles: A Versatile Approach to Optically Active 3-Amino-2-oxindole Derivatives
作者:Tommy Bui、Mar Borregan、Carlos F. Barbas
DOI:10.1021/jo902039a
日期:2009.12.4
A cinchona alkaloid-catalyzed, highly enantioselective, α-amination of oxindoles has been developed. The reaction is general, operationally simple, and affords the desired products in high yields with good to excellent enantioselectivity. Significantly, this study provides a general catalytic method for the construction of a C−N bond at the C3 position of oxindoles as well as for the creation of a
已经开发了金鸡纳生物碱催化的高对映选择性的羟吲哚α-胺化反应。该反应是一般的,操作简单的,并且以高收率和良好至优异的对映选择性提供了所需的产物。重要的是,这项研究为在羟吲哚的C3位置构建C-N键以及建立含氮的四取代手性中心提供了一种通用的催化方法。