GO–Cu<sub>7</sub>S<sub>4</sub> catalyzed <i>ortho</i>-aminomethylation of phenol derivatives with <i>N</i>,<i>N</i>-dimethylbenzylamines: site-selective oxidative CDC
作者:Sonu Gupta、Nisha Chandna、Pooja Dubey、Ajai K. Singh、Nidhi Jain
DOI:10.1039/c8cc03396j
日期:——
supported on graphene oxide (GO) have been synthesized for the first time from Cu2S, and used as highly efficient heterogeneous catalysts for oxidative ortho-selective C–H aminomethylation of phenols with N,N-dimethylbenzylamines. The NPs (30–80 nm) have been characterized by HRTEM, SEM-EDX, PXRD, FTIR, Raman, ICP-AES and XPS analyses. The NP catalyzed sp2–sp3 cross dehydrogenative coupling (CDC) features
首次由Cu 2 S合成了负载在氧化石墨烯(GO)上的硫化铜铜纳米颗粒(Cu 7 S 4),并用作高效的非均相催化剂,用于酚与N,N的氧化邻位选择性C–H氨基甲基化-二甲基苄胺。NP(30–80 nm)已通过HRTEM,SEM-EDX,PXRD,FTIR,拉曼,ICP-AES和XPS分析进行了表征。NP催化的sp 2 –sp 3 交叉脱氢偶联(CDC)具有广泛的底物范围,优异的官能团耐受性,高收率,使用廉价且可重复使用的铜催化剂,温和的条件以及无需对底物进行预功能化。