title: 2-Oxindole Acts as a Synthon of 2-Aminobenzoyl Anion in the K2CO3-Catalyzed Reaction with Enones: Preparation of 1,4-Diketones Bearing an Amino Group and Their Further Transformations.
abstract: A convenient approach for the synthesis of 1,4-diketones bearing an amino group has been developed through the K2CO3-catalyzed reaction of 2-oxindoles with enones with the assistance of atmospheric O2 via sequential Michael addition-oxidation-ring-cleavage process. The further intramolecular reaction leads to the formation of benzoazepinone, quinoline, and 3-oxindole derivatives.
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University , Changzhou 213164, China.
authors.forename: Chun-Bao
authors.initials: CB
authors.lastname: Miao
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University , Changzhou 213164, China.
authors.forename: Yu-Mei
authors.initials: YM
authors.lastname: Zeng
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University , Changzhou 213164, China.
authors.forename: Tong
authors.initials: T
authors.lastname: Shi
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University , Changzhou 213164, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Liu
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University , Changzhou 213164, China.
authors.forename: Peng-Fei
authors.initials: PF
authors.lastname: Wei
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University , Changzhou 213164, China.
authors.forename: Xiao-Qiang
authors.initials: XQ
authors.lastname: Sun
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University , Changzhou 213164, China.
authors.forename: Hai-Tao
authors.initials: HT
authors.lastname: Yang