Enantioselective Remote C(sp<sup>3</sup>)–H Cyanation via Dual Photoredox and Copper Catalysis
作者:Hui Chen、Weiwei Jin、Shouyun Yu
DOI:10.1021/acs.orglett.0c02008
日期:2020.8.7
The remote C(sp3)–H cyanation of carboxamides has been described by merging photoredox and copper catalysis in a site-selective and enantiocontrolled manner. The protocol is the integration of photoinduced and nitrogen-centered radical-mediated intermolecular hydrogen atom transfer with chiral copper-complex-catalyzed radical cyanation. This strategy gives enantio-enriched cyanated amides in high yields
通过以位点选择和对映体控制的方式合并光催化和铜催化作用,描述了羧酰胺的远程C(sp 3)-H氰化反应。该协议是光诱导和氮中心自由基介导的分子间氢原子转移与手性铜络合物催化的自由基氰化的集成。该策略以高收率得到对映体富集的氰化酰胺。