title: [3 + 2] cycloaddition and subsequent oxidative dehydrogenation between alkenes and diazo compounds: a simple and direct approach to pyrazoles using TBAI/TBHP.
abstract: A novel Bu4NI-catalyzed pyrazole formation reaction is well described via sequential [3 + 2] cycloaddition and oxidative dehydrogenation reactions using TBHP as the primary oxidant. In comparison with previous cases toward pyrazoles from alkenes and diazo compounds, alkenes without a pre-organized leaving group were applied in this transformation. In addition, this methodology was distinguished by its broad substrate scope, commercially available inexpensive starting materials, high atom economy and operational simplicity.
authors.affiliation: Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, P. R. China. yingshao@cczu.edu.cn.
authors.forename: Ying
authors.initials: Y
authors.lastname: Shao
authors.forename: Jingjing
authors.initials: J
authors.lastname: Tong
authors.forename: Yanwei
authors.initials: Y
authors.lastname: Zhao
authors.forename: Hao
authors.initials: H
authors.lastname: Zheng
authors.forename: Liang
authors.initials: L
authors.lastname: Ma
authors.forename: Meihua
authors.initials: M
authors.lastname: Ma
authors.forename: Xiaobing
authors.initials: X
authors.lastname: Wan