title: Convenient One-Step Synthesis of Benzo[c]phenanthridines by Three-Component Reactions of Isochromenylium Tetrafluoroborates and Stilbenes in Acetonitrile.
abstract: A new type of three-component reaction of air-stable isochromenylium tetrafluoroborates with electron-rich stilbenes in acetonitrile has been developed under catalyst-free conditions in this work. This cascade multibond-formation reaction is initiated by an intermolecular oxa [4 + 2]-cycloaddition, relayed with a nucleophilic addition of acetonitrile, and terminated by an intramolecular Friedel-Crafts reaction, affording the corresponding benzo[c]phenanthridine analogues in one step.
authors.affiliation: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University , 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China.
authors.forename: Gang-Gang
authors.initials: GG
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University , 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China.
authors.forename: Jun-Qiang
authors.initials: JQ
authors.lastname: Wei
authors.affiliation: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University , 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China.
authors.forename: Xiaoliang
authors.initials: X
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University , 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China.
authors.forename: Zhu-Jun
authors.initials: ZJ
authors.lastname: Yao