Site-Tunable C<sub>sp<sup>3</sup></sub>–H Bonds Functionalization by Visible-Light-Induced Radical Translocation of <i>N</i>-Alkoxyphthalimides
作者:Chuanyong Wang、Yangyang Yu、Wen-Long Liu、Wei-Liang Duan
DOI:10.1021/acs.orglett.9b03524
日期:2019.11.15
bonds has been accomplished through radical translocation and cross-coupling. Upon irradiation with visible light, copper-based photocatalyst [Cu(Xantphos)(dmp)]BF4 enabled cross-coupling of N-alkoxyphthalimides with amino acid esters or amino acids to provide δ-C(sp3)–H alkylated alcohols (31 examples, up to 92% yield) with additive BNDHP or α-C(sp3)–H alkylated alcohols (18 examples, up to 86% yield)
C(sp 3)–H键的位点可调功能已通过自由基易位和交叉偶联完成。在可见光照射下,铜基光催化剂[Cu(Xantphos)(dmp)] BF 4使N-烷氧基邻苯二甲酰亚胺与氨基酸酯或氨基酸交叉偶联,从而提供δ-C(sp 3)-H烷基化醇( 31个实例,添加BNDHP或α-C(sp 3)–H烷基化醇类添加剂(高达92%产率)(18个实例,高达86%产率),具有添加剂DABCO,具有高度区域选择性。