title: Tunable Cascade Reaction of Aryl Diazonium Salts and Trialkylamine: Synthesis of Monofluorinated Arylhydrazones and gem-Difluorinated Azo Compounds.
abstract: The first example of a mild and tunable cascade reaction of aryl diazonium salts and trialkylamine in the presence of Selectfluor to prepare monofluorinated arylhydrazones and gem-difluorinated azo compounds without metal has been explored. In the presence of H2O, the monofluorinated arylhydrazones were observed in moderate to good yield. In the absence of H2O, the gem-difluorinated azo compounds were obtained. The fluorinated arylhydrazones were utilized to synthesize fluorinated pyrazoles and other nitrogen-containing compounds.
authors.affiliation: State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai Unviersity , Tianjin 300071, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Guo
authors.affiliation: Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University , Kaifeng 475004, China.
authors.forename: Zhengjuan
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University , Kaifeng 475004, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Shi
authors.affiliation: State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai Unviersity , Tianjin 300071, China.|Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071, China.
authors.forename: Pingping
authors.initials: P
authors.lastname: Tang