PYRAZOLES

作品数：42被引量：31H指数：3
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相关领域：理学更多>>
相关作者：谭启涛许斌丁正伟邱骏苟小锋更多>>
相关机构：上海大学西北大学南京航空航天大学更多>>
相关期刊：《Tungsten》《Chinese Journal of Catalysis》《Chinese Journal of Chemistry》《Acta Pharmacologica Sinica》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划上海市教育委员会创新基金国家重点实验室开放基金更多>>
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Photochemical multicomponent transformation of acceptor-only diazoalkanes by merging their cycloaddition and carbene reactivities
《Chinese Chemical Letters》2023年第9期138-142,共5页Bao-Gui Cai Guo-Yong Xu Jun Xuan 
the National Natural Science Foundation of China(Nos.21971001 and 21702001);the Natural Science Foundation of Anhui Province(No.1808085MB47),for financial support。
Herein,we report an efficient photochemical method for the synthesis of poly-substituted pyrazoles through a multicomponent reaction of acceptor-only diazoalkanes,alkynes,and solvents(cyclic ethers or nitriles).The ke...
关键词：Photochemical synthesis Multicomponent reaction Diazoalkanes CARBENE PYRAZOLES 
External electrolyte-free electrochemical one-pot cascade synthesis of 4-thiocyanato-1H-pyrazoles
《Chinese Chemical Letters》2023年第2期206-209,共4页Wei-Bao He Sai-Jie Zhao Jing-Yang Chen Jun Jiang Xiang Chen Xinhua Xu Wei-Min He 
financial support from the National Natural Science Foundation of China (No. 21902014);Hunan Provincial Natural Science Foundation of China (No. 2021JJ40429)。
A practical synthetic method for 4-thiocyanato-1H-pyrazoles through the electrochemical cascade reaction of hydrazines, 1,3-diones and NH4SCN under metal-, chemical oxidant-and external electrolyte-free conditions was...
关键词：Green chemistry ELECTROCHEMISTRY Cascade reaction Multicomponent reaction THIOCYANATO 
Dual Incorporation of Trifluoromethyl and Cyano Groups into Pyrazole Pharmcophores via Silver-Catalyzed Cycloaddition Reaction of Trifluorodiazoethane被引量：2
《CCS Chemistry》2022年第12期3693-3704,共12页Cheng-Feng Gao Yin Zhou Hai Ma Yue Zhang Jing Nie Fa-Guang Zhang Jun-An Ma 
This work is supported by the National Natural Science Foundation of China(grant nos.92156025,21901181,and 21961142015);the National Key Research and Development Program of China(grant nos.2019YFA0905100 and 2021YFF0701700);Tianjin Municipal Science and Technology Commission(grant no.19JCQNJC04700).
The dual incorporation of two important functional groups—trifluoromethyl and cyano moieties into one heterocyclic core in a single-step reaction represents an appealing but largely unaddressed synthetic challenge.He...
关键词：PYRAZOLES trifluoromethyl group cyano group silver catalysis diazo reagents 
Two Dawson-type U(Ⅵ)-containing selenotungstates with sandwich structure and its high-efficiency catalysis for pyrazoles被引量：2
《Chinese Chemical Letters》2022年第8期3899-3902,共4页Mengyuan Cheng Yufeng Liu Weixin Du Jingwen Shi Junhua Li Haiying Wang Ke Li Guoping Yang Dongdi Zhang 
supported by the National Natural Science Foundation of China(Nos.22071045,22001034);Excellent Youth Science Fund Project of Henan Province(No.202300410042);the Open Fund of the Jiangxi Province Key Laboratory of Synthetic Chemistry(No.JXSC202008);the start-up fund of Henan University。
Two novel uranium-containing selenotungstates Na_(3)[H_(19)(UO_(2))_(2)(μ_(2)-O)(Se_(2)W_(14)O_(52))_(2)]·41 H_(2)O(U_(2))and(NH_(4))_(10)[H_(4)(SeO)_(2)(UO_(2))_(2)(H_(2)O)_(2)(H_(2)Se_(2)W_(14)O_(52))(Se_(2)W_(14)...
关键词：Selenotungstates URANIUM Dawson-type Condensation reaction PYRAZOLES 
Effect of Na(Ⅰ)-H2O clusters on self-assembly of sandwich-type U(Ⅵ)-containing silicotungstates and the efficient catalytic activity for the synthesis of substituted phenylsulfonyl-1H-pyrazoles被引量：1
《Tungsten》2022年第2期149-157,共9页Ke Li Xiao-Ling Lin Kai Zeng Xiao-Fei Gao Wei Cen Yu-Feng Liu Guo-Ping Yang 
supported by the National Natural Science Foundation of China (Grant No. 22001034);the Open Fund of the Jiangxi Province Key Laboratory of Synthetic Chemistry (Grant No. JXSC202008);the Research Found of East China University of Technology (Grant Nos. DHBK2019264, DHBK2019265, DHBK2019267)
In this study,a sandwich-type uranium(Ⅵ)-containing silicotungstate KNa11H2(H2O)30[Na(UO2)(SiW9O34)]2·8H2O(1)with new three-dimensional(3D)structure was synthesized and characterized using single-crystal X-ray diffr...
关键词：Uranium POLYOXOTUNGSTATES Condensation reaction Phenylsulfonyl-1H-pyrazoles 
H_(4)SiW_(12)O_(40)-catalyzed cyclization of epoxides/aldehydes and sulfonyl hydrazides: An efficient synthesis of 3,4-disubstituted 1H-pyrazoles被引量：1
《Chinese Chemical Letters》2022年第3期1483-1487,共5页Guoping Yang Xuanjie Xie Mengyuan Cheng Xiaofei Gao Xiaoling Lin Ke Li Yuanyuan Cheng Yufeng Liu 
financially supported by the National Natural Science Foundation of China (Nos. 22001034 and 21804019);the Open Fund of the Jiangxi Province Key Laboratory of Synthetic Chemistry (No. JXSC202008);the Research Found of East China University of Technology (Nos. DHBK2019264, DHBK2019265 and DHBK2019267)。
A simple and efficient method for the synthesis of pyrazoles through a silicotungstic acid (H_(4)SiW_(12)O_(40))-catalyzed cyclization of epoxides/aldehydes and sulfonyl hydrazides has been developed. Various epoxides...
关键词：Silicotungstic acid EPOXIDES ALDEHYDES Sulfonyl hydrazides 3 4-Disubstituted 1H-pyrazoles 
Self-assembly of a new 3D platelike ternary-oxo-cluster:An efficient catalyst for the synthesis of pyrazoles
《Chinese Chemical Letters》2022年第1期354-357,共4页Guoping Yang Yufeng Liu Xiaoling Lin Bangming Ming Ke Li Changwen Hu 
financially supported by the National Natural Science Foundation of China(Nos.22001034,21871026,21804019);the Open Fund of the Jiangxi Province Key Laboratory of Synthetic Chemistry(No.JXSC202008);the Research Found of East China University of Technology(Nos.DHBK2019264,DHBK2019265,DHBK2019267)。
A new metal-oxo-clusters-based inorganic framework[NaCo_(2)Mo_(2)O_(7)(OH)_(3)]_(n)(NaCoMo),named as 3D platelike ternary-oxo-cluster,has been hydrothermally synthesized and characterized by single-crystal X-ray diffr...
关键词：POLYOXOMETALATES Oxo clusters 3D inorganic framework Condensation reaction PYRAZOLES 
Cascade reaction to 1H-pyrazoles from hydrazones via sodium Ni-trite promoted dual C-C/C-N formation,annulation and aromatization with 1,2-dichloroethane
《Chinese Chemical Letters》2021年第7期2309-2312,共4页Liqiang Hao Hongyan Liu Zheng Zhang Fuqiang Wen Chengcai Xia Zengfen Pang 
financial support for this research from Shandong Provincial Natural Science Foundation(No.ZR2017LB006);Academic promotion programme of Shandong First Medical University(No.2019LJ003)。
A novel route for tandem C-C/C-N formation,annulation and aromatization of hydrazones with 1,2-dichloroethane to synthesize 1 H-pyrazoles has been developed.Furthermore,the 1,2-dichloroethane serves as alkylation reag...
关键词：Tandem HYDRAZONES 1 2-DICHLOROETHANE 1H-Pyrazoles ANNULATION 
A Mini-Review 5-Amino-N-Substituted Pyrazoles as Building Blocks for Bioactive Molecules
《International Journal of Organic Chemistry》2020年第2期63-76,共14页Wafa Bawazir 
In this review a five-membered heterocyclic ring having two adjacent nitrogen atoms known as Pyrazole, we have framed 5-amino-N-substituted pyrazoles in particular focusing on its substantial role as a building block ...
关键词：Synthesis 1 5-Disubstituted Pyrazoles Bioactive Review 
Palladium-catalyzed late-stage mono-aroylation of the fully substituted pyrazoles via aromatic C-H bond activation被引量：1
《Chinese Chemical Letters》2019年第3期702-706,共5页Miao-Miao Chen Ling-Yan Shao Li-Jun Lun Yu-Liang Wu Xiao-Pan Fu Ya-Fei Ji 
the National Natural Science Foundation of China(Nos. 21476074 and 21676088)for financial support
The palladium-catalyzed late-stage aroylation of 4-methyl-1,5-diaryl-lH-pyrazole-3-carboxylates has been developed via direct and exclusive mono-Csp^2-H bond activation with broad substrate scope and good functional g...
关键词：Palladium-catalysis Late-stage FUNCTIONALIZATION AroYlation Fully SUBSTITUTED PYRAZOLES C-H bond activation Cyclopalladated intermediate 
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