Fe-promoted radical cyanomethylation/arylation of arylacrylamides to access oxindoles via cleavage of the sp<sup>3</sup> C–H of acetonitrile and the sp<sup>2</sup> C–H of the phenyl group
作者:Changduo Pan、Honglin Zhang、Chengjian Zhu
DOI:10.1039/c4ob02172j
日期:——
Radical cyanomethylation/arylation of arylacrylamides to access oxindoles with acetonitrile as the radical precursor is described. This reaction involves dualC–H bond functionalization, including the sp3 C–H of acetonitrile and the sp2 C–H of the phenyl group. A variety of functional groups, such as methoxy, ethyloxy carbonyl, chloro, bromo, iodo, nitro, trifluoromethoxy and trifluoromethyl groups
1,2-Alkylarylation of Activated Alkenes with Two C–H Bonds by Using Visible-Light Catalysis
作者:Guo-Fang Jiang、Jin-Heng Li、Jia-Ling Zhang、Yu Liu、Ren-Jie Song
DOI:10.1055/s-0033-1340956
日期:——
A new visible-light promoted strategy for the difunctionalization of activated alkenes with two C-H bonds has been developed. In the presence of [Ru(bpy)(3)Cl-2], 4-MeOC6H4N2BF4, Na2CO3 and 36W compact fluorescent light, a variety of N-arylacrylamides underwent the 1,2-alkylarylation reaction with acetonitrile or acetone to give the corresponding functionalized oxindoles in moderate to good yields.