Palladium(II)/<i>N</i>-Heterocyclic Carbene-Catalyzed Direct C–H Acylation of Heteroarenes with <i>N</i>-Acylsaccharins
作者:Shanmugam Karthik、Thirumanavelan Gandhi
DOI:10.1021/acs.orglett.7b02877
日期:2017.10.6
N-Acylsaccharin represents a facile acyl group transfer agent to heteroarenes in the presence of Pd(II)/NHC complexes appended with a pyrene unit. Catalytic acylation of heteroarenes was enhanced by the noncovalent interaction between the pyrene unit and substrates. High functional group tolerance, broad substrate scope, and moderate to good yields of 2-acylated azoles are added features of this method
N-酰基糖精代表在附有pyr单元的Pd(II)/ NHC络合物存在下向杂芳烃的简便酰基转移剂。are单元和底物之间的非共价相互作用增强了杂芳烃的催化酰化作用。高官能团耐受性,宽泛的底物范围以及中等至良好的2-酰化吡咯收率是该方法的特色。