22675-58-7Relevant academic research and scientific papers
Br?nsted acid-promoted hydroamination of unsaturated hydrazones: access to biologically important 5-arylpyrazolines
He, Han,Xu, Ning,Zhang, Honglin,Chen, Bin,Hu, Zhengnan,Guo, Kang,Chun, Jianlin,Cao, Shujun,Zhu, Yingguang
, p. 17340 - 17345 (2021/05/25)
A novel and efficient Br?nsted acid-promoted hydroamination of hydrazone-tethered olefins has been developed. A variety of pyrazolines have been easily obtained in good to excellent yields with high chemo- and regioselectivity under simple and mild conditions. This method represents a straightforward, facile, and practical approach toward biologically important 5-arylpyrazolines, which are difficult to access by previously reported radical hydroamination of β,γ-unsaturated hydrazones.
Y(OTf)3-Catalyzed Cascade Propargylic Substitution/Aza-Meyer-Schuster Rearrangement: Stereoselective Synthesis of α,β-Unsaturated Hydrazones and Their Conversion into Pyrazoles
Liu, Wenfei,Wang, Han,Zhao, Haiying,Li, Baoguo,Chen, Shufeng
supporting information, p. 2170 - 2174 (2015/09/15)
A straightforward and concise method for the highly stereoselective synthesis of α,β-unsaturated hydrazones by the Y(OTf)3-catalyzed cascade propargylic substitution/aza-Meyer-Schuster rearrangement reaction of tertiary propargylic alcohols and
