Catalyst-Free, Direct Electrochemical Tri- and Difluoroalkylation/Cyclization: Access to Functionalized Oxindoles and Quinolinones

Autor: Xu Tian, Zhongnan Xu, Xiyong Yu, Zhixing Huang, Lutz Ackermann, Guangquan Mo, Zhixiong Ruan
Rok vydání: 2019
Předmět:
Zdroj: Organic Letters. 21:1237-1240
ISSN: 1523-7052
1523-7060
Popis: The catalyst-free electrochemical di- and trifluoromethylation/cyclization of N-substituted acrylamides was realized under external oxidant-free conditions. The strategy provides expedient access to fluoroalkylated oxindoles and 3,4-dihydroquinolin-2(1 H)-ones with ample scope and broad functional group tolerance by mild, direct electrolysis of sodium sulfinates in an undivided cell. Detailed mechanistic studies provided strong support for a SET-based reaction manifold.
Databáze: OpenAIRE