title: Eosin Y-catalyzed visible-light-mediated aerobic oxidative cyclization of N,N-dimethylanilines with maleimides.
abstract: A novel and simple strategy for the efficient synthesis of the corresponding tetrahydroquinolines from N,N-dimethylanilines and maleimides using visible light in an air atmosphere in the presence of Eosin Y as a photocatalyst has been developed. The metal-free protocol involves aerobic oxidative cyclization via sp(3) C-H bond functionalization process to afford good yields in a one-pot procedure under mild conditions.
authors.affiliation: Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China.
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Liang
authors.affiliation: Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China ; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiahang Road 118, Zhejiang 314001, China.
authors.forename: Song
authors.initials: S
authors.lastname: Xu
authors.affiliation: Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China.
authors.forename: Wenyan
authors.initials: W
authors.lastname: Tian
authors.affiliation: Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China ; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Siping Road 1239, Shanghai 200092, China.
authors.forename: Ronghua
authors.initials: R
authors.lastname: Zhang
keywords: C–H functionalization; Eosin Y; aerobic oxidative cyclization; photoredox catalysis; visible light