Rhodium(III)-Catalyzed Direct Cyanation of Aromatic C–H Bond to Form 2-(Alkylamino)benzonitriles Using <i>N</i>-Nitroso As Directing Group
作者:Jiawei Dong、Zhongjie Wu、Zhengyi Liu、Ping Liu、Peipei Sun
DOI:10.1021/acs.joc.5b01666
日期:2015.12.18
2-(Alkylamino)benzonitriles were synthesized via a rhodium-catalyzed cyanation on the aryl C–H bond and subsequent denitrosation of N-nitrosoarylamines using a removable nitroso as the directing group, in which N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS) was used as the “CN” source. Various substituents on the aryl ring and amino group of N-nitrosoarylamines tolerated the reaction, and the corresponding
2-(烷基氨基)苄腈是通过在芳基C–H键上进行铑催化的氰化反应以及随后使用可除去的亚硝基作为导向基团对N-亚硝基芳胺进行亚硝化而合成的,其中N-氰基-N-苯基-对甲基苯磺酰胺(NCTS)用作“ CN”来源。N-亚硝基芳基胺的芳基环和氨基上的各种取代基可耐受该反应,并且以中等至良好的产率获得了相应的产物。