A ruthenium‐catalyzed carbonylative CH bond arylation process for the three‐component synthesis of complex aryl–(hetero)arylketones in an aqueous solution has been developed. By exploiting the ortho‐activating effect of nitrogen‐containing directing groups, a regioselective, successive twofold C(sp2)C(sp2) bond formation has been achieved. This straightforward catalytic process provides access to
Direct C-2 acylation of indoles with toluene derivatives via Pd(<scp>ii</scp>)-catalyzed C–H activation
作者:Yaping Zhao、Upendra K. Sharma、Felix Schrӧder、Nandini Sharma、Gonghua Song、Erik V. Van der Eycken
DOI:10.1039/c7ra06004a
日期:——
A simple and efficient Pd-catalyzed method for the C2-acylation of indoles is described. Less toxic, stable, and commercially available toluene derivatives were used as acyl sources, with tert-butylhydroperoxide (TBHP) as oxidant and pivalic acid as additive, providing moderate to good yields.