Copper-catalyzed tandem oxidative cyclization of arylacetamides: efficient access to N-functionalized isatins
作者:Jie Sun、Bingxin Liu、Bin Xu
DOI:10.1039/c3ra40657a
日期:——
An efficient copper-catalyzed synthesis of N-substituted isatins has been developed in good yields from easily accessible arylacetamides. A wide range of electronically and structurally varied nitrogen fragments could be assembled through this tandem C–O/C–N bond-forming process by tuning the reaction conditions.
Branch-Selective Synthesis of Oxindole and Indene Scaffolds: Transition Metal-Controlled Intramolecular Aryl Amidation Leading to C3 Reverse-Prenylated Oxindoles
作者:Vasily A. Ignatenko、Nihal Deligonul、Rajesh Viswanathan
DOI:10.1021/ol1012372
日期:2010.8.20
a concise branch-selective synthesis of C3 tertiary oxindoles by Cu(I)-catalyzed aryl amidation and 2,2-dimethyl indene by Pd(0)-catalyzed Heck cyclization has been accomplished from acyclic reverse-prenylated intermediates. Oxindole C3-enolate generationusing NaH followed by alkylation in the presence of appropriate electrophiles provides a novel route to quaternary C3 reverse-prenylated oxindoles