generation of amines by palladium-catalyzed nucleophilic benzylic addition of 2-methyl-substituted azaarenes to N-sulfonyl aldimines under neutral conditions via C-H bondactivation has been developed. This reaction represents a very efficient methodology for the synthesis of heterocycle-containing amines and thus opens a new way to access amines through C-H bondactivation.
Lewis Acid-Catalyzed CH Functionalization for Synthesis of Isoindolinones and Isoindolines
作者:Bo Qian、Shengmei Guo、Chungu Xia、Hanmin Huang
DOI:10.1002/adsc.201000556
日期:2010.12.17
The Lewisacid-catalyzed CH functionalization of 2-substituted azaarenes with N-sulfonylaldimines has been developed, which provides a rapid and efficient approach for synthesis of heterocycle-containing isoindolinones and isoindolines.
Copper Catalyzed C−H Functionalization for Direct Mannich Reactions
作者:Magnus Rueping、Nikita Tolstoluzhsky
DOI:10.1021/ol103150g
日期:2011.3.4
A protocol for a practical and direct addition of alpha- and gamma-alkyl azaarenes to N-sulfonyl aldimines has been developed. Copper salts act as efficient Lewis acid catalysts for direct Mannich-type reactions providing a mild and fast access to various functionalized heterocycles.