Acid-catalyzed cascade radical addition/cyclization of arylacrylamides with ketones
作者:Xiao-Feng Xia、Su-Li Zhu、Minglu Zeng、Zhen Gu、Haijun Wang、Wei Li
DOI:10.1016/j.tet.2015.06.106
日期:2015.9
radical addition/cyclization of arylacrylamides with ketones was described. The reaction tolerates a series of functional groups, such as nitro, methoxyl, carbonyl, bromo, chloro, fluoro, and trifluoromethyl groups. γ-Peroxyketones were also prepared using N-arylsulfonyl-acrylamides as substrates under acid-catalyzed conditions.
Silver-catalyzed oxidative coupling/cyclization of acrylamides with 1,3-dicarbonyl compounds
作者:Hua Wang、Li-Na Guo、Xin-Hua Duan
DOI:10.1039/c3cc46114a
日期:——
An efficient silver-catalyzed oxidative cyclization of acrylamides with 1,3-dicarbonyl compounds is described. It proceeds through a tandem radical addition/cyclization process, in which two new C–C bonds were formed.
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.