An operationally simple photochemical strategy for the direct arylation of oxindoles with (hetero)arylhalides in the absence of both transition metals and photoredox catalysts has been developed. The reaction provides an efficient way to construct various 3-aryloxindole building blocks of pharmaceutical interest at ambient temperature by using household compact fluorescent light (CFL) bulbs as the
Oxindole Synthesis by Direct Coupling of C sp 2H and C sp 3H Centers
作者:Yi-Xia Jia、E. Peter Kündig
DOI:10.1002/anie.200805652
日期:——
An sp2/sp3 get‐together: A novel and efficient method can be used to synthesize 3,3‐disubstitued oxindoles by the direct intramolecular oxidative coupling of an aryl CH and a CH center (see scheme; DMF=N,N‐dimethylformamide).