Isoindolone Synthesis via Palladium-Catalysed Intramolecular Amination of Benzylic C–H bonds
作者:Ming Zhang
DOI:10.3184/174751913x13801883437178
日期:2013.10
A new method for the construction of isoindolones is presented in this paper. Four 7-methyl-2-(8-quinolinyl)-2,3-dihydro-1H-isoindol-1-ones were synthesised from 2,6-dimethyl-N-(8-quinolinyl)benzamides via intramolecular direct amination of benzylic C-H bonds. This approach provides a convenient method affording structurally new isoindolones for medicinal chemistry research.
Isoindolone Synthesis via Intramolecular Coupling of Benzylic C-H Bonds with Amide N-H Bonds
作者:Ming Zhang、Tianbao Chen、Qinhua Liu
DOI:10.3987/com-14-12974
日期:——
Four 7-methyl-2-(8-quinolinyl)-2,3-dihydro-1H-isoindol-1-ones were synthesized from 2,6-dimethyl-N-(8-quinolinyl)benzamides with exellent yields using Pd(OAc)(2) as a catalyst, iodobenzene as an oxidant and AgOAc as an additive.
Copper-Catalyzed Intramolecular Benzylic C–H Amination for the Synthesis of Isoindolinones
A copper-catalyzed intramolecular amination occurs at the benzylic C–H of 2-methylbenzamides to deliver the corresponding isoindolinones of great interest in medicinal chemistry. The mild and abundant MnO2 works well as a terminal oxidant, and the reaction proceeds smoothly under potentially explosive organic peroxide-free conditions. Additionally, the directing-group-dependent divergent mechanisms
A novel and efficient process for the orth‐methylation of benzamides with DTBP via Ni(II)‐catalyzed C–H activation assisted by 8‐aminoquinoline was developed.