51813-17-3Relevant academic research and scientific papers
Copper-Promoted Oxidative Intramolecular C–H Amination of Hydrazones to Synthesize 1H-Indazoles and 1H-Pyrazoles Using a Cleavable Directing Group
Zhang, Guofu,Fan, Qiankun,Zhao, Yiyong,Ding, Chengrong
, p. 5801 - 5806 (2019/08/02)
A facile and efficient synthesis of 1H-indazoles and 1H-pyrazoles through a copper-promoted oxidative intramolecular C–H amination of hydrazones using a cleavable directing group was developed. This reaction is characterized by its mild conditions, operational simplicity, readily available reagents, and excellent yields. A tentative mechanism for Cu-mediated C–H oxidative amination was proposed.
Preparation and structures of some new 1H-pyrazole derivatives
Wang, Dun-Jia,Kang, Yan-Fang,Zheng, Chun-Yang,Wei, Xian-Hong
, p. 2311 - 2320 (2013/07/26)
Some new 3,5-diaryl-1H-pyrazoles were prepared from aryl methyl ketones via Claisen condensation with aromatic esters and followed by cyclization with hydrazine monohydrate. Their structures were confirmed by IR, 1H NMR spectroscopy, mass spect
Solvent free synthesis of different substituted pyrazoles under microwave irradiation via one pot synthesis and their biological evaluation
Shorey, Shweta,Choudhary, Prakash,Intodia, Kumud
, p. 5930 - 5932,3 (2020/09/15)
Pyrazoles and their derivative are widely used as pharmaceutical and agrochemical agents and consequently a large number of synthetic routes to pyrazole have been reported. Due to the property of reducing blood sugar by pyrazole, it has resulted in the sy
