1016169-48-4Relevant academic research and scientific papers
Synthesis method of mefenpyr-diethyl
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Paragraph 0024; 0039-0044, (2019/07/29)
The invention relates to a synthesis method of mefenpyr-diethyl. The method comprises the steps of carrying out a reaction among 2,4-dichlorophenylhydrazine hydrochloride, ethyl glyoxalate and alkaliin a solvent, and carrying out a [3+2] cycloaddition rea
Pyrrolo[3,4-c]pyrazole Synthesis via Copper(?) Chloride-Catalyzed Oxidative Coupling of Hydrazones to Maleimides
Zhu, Jia-Nan,Wang, Wen-Kang,Jin, Ze-Hui,Wang, Qian-Kun,Zhao, Sheng-Yin
supporting information, p. 5046 - 5050 (2019/09/03)
A variety of pyrrolo[3,4-c]pyrazole derivatives from readily available aldehyde hydrazones and maleimides via direct oxidative coupling under radical cascade reaction have been reported. This method offers satisfactory chemical yields and good functional
Vinylogous reactivity of enol diazoacetates with donor-acceptor substituted hydrazones. Synthesis of substituted pyrazole derivatives
Xu, Xinfang,Zavalij, Peter Y.,Hu, Wenhao,Doyle, Michael P.
, p. 1583 - 1588 (2013/03/28)
A regiospecific synthesis of multifunctional pyrazoleshas been developed from a cascade process triggered by Rh(II)-catalyzed dinitrogen extrusion from enol diazoacetates with vinylogous nucleophilic addition followed by Lewis acid catalyzed cyclization a
Base-mediated reaction of hydrazones and nitroolefins with a reversed regioselectivity: A novel synthesis of 1,3,4-Trisubstituted pyrazoles
Deng, Xiaohu,Mani, Neelakandha S.
supporting information; body text, p. 1307 - 1310 (2009/04/06)
A regioselective synthesis of 1,3,4-tri- or 1,3,4,5-tetrasubstituted pyrazoles by the reaction of hydrazones with nitroolefins is described. Mediated with strong bases such as t-Bu OK, the reaction exhibits a reversed, exclusive 1,3,4-regioselectivity. Su
