Copper-Catalyzed Radical Aryl Migration Approach for the Preparation of Cyanoalkylsulfonylated Oxindoles/Cyanoalkyl Amides

Autor: Zhe Zhang, Wan-Xu Wei, Qiao-Fei Bao, Ming Li, Jin-Lin Wang, Yu-Zhao Wang, Yong-Min Liang, Cui-Tian Wang, Yi-Feng Qiu, Xue-Song Li
Rok vydání: 2021
Předmět:
Zdroj: Organic Letters. 23:751-756
ISSN: 1523-7052
1523-7060
DOI: 10.1021/acs.orglett.0c03973
Popis: A copper-catalyzed radical cross-coupling of oxime esters and activated alkenes is accomplished for the synthesis of cyanoalkylsulfonylated oxindoles and cyanoalkyl amides via an aryl migration strategy. Specifically, the subsequent mechanism research indicates that the unique desulfonylation and sulfone addition processes were involved in the transformation. This transformation is identified as having good functional group applicability with two different quaternary stereocenter in a regioselective manner, which is controlled by the substituent group of the nitrogen.
Databáze: OpenAIRE