Palladium-Catalyzed C−H Functionalization of N-Arylpropiolamides with Aryliodonium Salts: Selective Synthesis of 3-(1-Arylmethylene)oxindoles
摘要:
A selective and efficient method for the synthesis of 3-(1-arylmethylene)oxindoles by palladium-catalyzed C-H functionalization of anilides with aryliodonium salts has been developed. In the presence of Pd(OAc)(2) and Et3N, a variety of anilides underwent the reaction with aryliodonium salts to afford the corresponding 3-(1-arylmethylene)oxindoles in moderate to good yields. It is noteworthy that the reaction can be conducted providing moderate yields even without bases. The mechanism of the reaction was also discussed.
Palladium Nanoparticle-Catalyzed Stereoselective Domino Synthesis of All-Carbon Tetrasubstituted Olefin Containing Oxindoles via Carbopalladation/C–H Activation
作者:Naziya Parveen、Govindasamy Sekar
DOI:10.1021/acs.joc.0c00915
日期:2020.8.21
catalyzed single-step, stereoselective domino synthesis of symmetrically and unsymmetrically all-carbon tetrasubstituted olefin containing oxindoles from readily accessible anilides has been developed. The Pd-BNP catalyst showed a wide range of functional group tolerance that enabled building a library of heteroaromatics. This reusable Pd catalyst reflected its utility in the synthesis of biologically important
Palladium-catalyzed domino N-arylation/carbopalladation/C–H functionalization: three-component synthesis of 3-(diarylmethylene)oxindoles
作者:Artur Pinto、Luc Neuville、Jieping Zhu
DOI:10.1016/j.tetlet.2009.03.086
日期:2009.7
A palladium-catalyzedthree-component synthesis of 3-(diarylmethylene)indolin-2-ones has been developed. A sequence of intermolecular N-arylation/intermolecular carbopalladation/C–H activation/C–C bond formation was realized in a one-pot fashion allowing the construction of one C–N bond and two C–C bonds by way of three distinct catalytic cycles.