PYRIDINES

作品数:47被引量:98H指数:4
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相关领域:理学更多>>
相关作者:曾伟于晓强王来宝更多>>
相关机构:广西师范大学烟台大学大连理工大学华南理工大学更多>>
相关期刊:《Chinese Journal of Chemistry》《Organic Chemistry Frontiers》《Science China Chemistry》《World Journal of Gastroenterology》更多>>
相关基金:国家自然科学基金北京市自然科学基金国家重点基础研究发展计划Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry更多>>
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Metal-free construction of diverse 1,2,4-triazolo[1,5-a]pyridines on water
《Chinese Chemical Letters》2025年第1期244-247,共4页Chunhua Ma Mengjiao Liu Siyu Ouyang Zhenwei Cui Jingjing Bi Yuqin Jiang Zhiguo Zhang 
financial support from the National Natural Science Foundation of China(No.82003585);the Program for Science&Technology Innovation Talents in Universities of Henan Province(No.24HASTIT069);the Technical Innovation Team of Henan Normal University(No.2022TD03);the Special Project for Fundamental Research in University of Henan Province(No.23ZX009);the Henan Science and Technology Program(No.232102310364);the Key Project of Henan Educational Committee(No.22A150041);Excellent Youth Foundation of Henan Scientific Committee(No.222300420012);the Young Core Instructor Training Program of Xinyang Agriculture and Forestry University(2023)。
A transition-metal-and oxidant-free amination/cyclization reaction to access 1,2,4-triazolo[1,5-a]pyridines was realized in water by using amino diphenylphosphinate as amino source.A broad array of readily accessible ...
关键词:1 2 4-Triazolo[1 5-a]pyridines On water N-(Pyridyl)amides CYCLIZATION METAL-FREE 
High Temperature Iron Ethylene Polymerization Catalysts Bearing N,N,N'-2-(1-(2,4-Dibenzhydryl-6-fluorophenylimino)ethyl)-6-(1-(arylphenylimino)ethyl)pyridines
《Chinese Journal of Polymer Science》2024年第2期188-201,I0007,共15页Chantsalnyam Bariashir Qiu-Yue Zhang Bayasgalan Ulambayar Gregory A.Solan Tong-Ling Liang Wen-Hua Sun 
Chinese Academy of Sciences for a President's International Fellowship for Visiting Scientists。
The N,N,N'-ferrous chloride complexes,[2-{CMeN(2,4-(CHPh)_(2)-6-FC_(6)H_(2))}-6-(CMeNAr)C_(5)H_(3)N]FeCl_(2)(Ar=2,6-Me_(2)C_(6)H_(3) Fe1,2,6-Et_(2)C_(6)H_(3)Fe2,2,6-^(i)Pr_(2)C_(6)H_(3) Fe3,2,4,6-Me_(3)C_(6)H_(2) Fe4 ...
关键词:Iron catalyst Ethylene polymerization Linear polyethylene Fluoride effect Thermal stability 
Rh(Ⅱ)-catalyzed intermolecular carboamination of pyridines via double Csp^(2)-H bond activations
《Science China Chemistry》2024年第1期374-382,共9页Zhongfeng Luo Jingxing Jiang Lifang Zou Xiaoyu Zhou Junshan Liu Zhuofeng Ke Fengjuan Chen Huanfeng Jiang Wei Zeng 
supported by the National Natural Science Foundation of China(22271100,21973113);the Key-Area Research and Development Program of Guangdong Province(2020-B010188001);the Guangdong Basic and Applied Basic Research Foundation(2023A1515010070);the China Postdoctoral Science Foundation(2021M701243)。
We disclose the development of the Rh-catalyzed amine-directed remote 5,6-carboamination protocol of pyridines via dual Csp^(2)-H functionalizations.A variety of readily available 2-aminopyridines and 1,2,3-triazoles ...
关键词:Rh-catalysis AZAINDOLES pyridyl Csp^(2)-H bond carboamination coupling-cyclization 
C–H alkylation of pyridines with olefins catalyzed by imidazolin-2-iminato-ligated rare-earth alkyl complexes被引量:2
《Science China Chemistry》2023年第6期1804-1813,共10页Dawei Li Lichao Ning Qiliang Luo Shiyu Wang Xiaoming Feng Shunxi Dong 
supported by the National Key R&D Program of China(2022YFA1504301);the National Natural Science Foundation of China(92056107,22271199,92256303,21890723);Sichuan University(2020SCUNL204)。
An array of rare-earth bis(aminobenzyl)complexes supported by imidazolin-2-iminato ligands were synthesized and structurally characterized.These complexes showed high activity towards ortho-Csp^(2)–H alkylation of 2-...
关键词:PYRIDINE C-H functionalization RARE-EARTH imidazolin-2-iminato ligand asymmetric catalysis 
Solvent-dependence of KI Mediated Electrosynthesis of Imidazo[1,2-a]pyridines
《Chemical Research in Chinese Universities》2023年第2期318-324,共7页YI Yangjie XU Leitao LIU Yuyang LI Mingfang ZHANG Lijuan YE Jiao HU Aixi 
Changsha Natural Science Foundation,China(No.kq2202183).
Iodized salts are widely used as mediators to promote C-H functionalization.Solvents and additives have been described as significant roles in these reactions.However,the further electrochemical investigations have ra...
关键词:Electrochemical annulation Electrochemical behavior SOLVENT Strong acid KI 
Visible Light-Induced C-5 Selective C-H Radical Borylation of Imidazo[1,2-a]pyridines with NHC-Boranes被引量:1
《Chinese Journal of Chemistry》2023年第2期193-198,共6页Huitao Zheng Hao Lu Chaobo Su Runlong Yang Limin Zhao Xiang Liu Hua Cao 
This work was supported by the Innovation and Strong School Project of Guangdong Pharmaceutical University(2021ZDzX2028);the Scientific and Technological Innovation Leading Talent Project of Zhongshan City(LJ2021009);a Start-up Grant from Guangdong Pharmaceutical University(Grant Nos.51361303,51361304).
A visible-light-induced C-5 selective C-H borylation of imidazo[1,2-a]pyridines with NHC-BH3 via Minisci-type radical borylation re-action has been developed for the first time.The present sustainable protocol provide...
关键词:PHOTOCHEMISTRY Boron C-H activation Imidazo[12-a]pyridines RADICALS Synthetic methods 
Iodomethane as an organocatalyst for the aerobic ortho-selective trifluoromethylation of pyridines
《Science China Chemistry》2023年第1期133-138,共6页Jianjin Yu Renqin Zhan Chao-Jun Li Huiying Zeng 
supported by the National Natural Science Foundation of China(21971093);the Fundamental Research Funds for the Central Universities(lzujbky-2021-sp53);the International Joint Research Centre for Green Catalysis and Synthesis(2016B01017);the 111 Project。
Iodomethane is usually used as an electrophilic methylation reagent.Herein,we report its use as a C1 organocatalyst for the aerobic ortho-selective trifluoromethylation of pyridines in the absence of a transition meta...
关键词:iodomethane-catalysis TRIFLUOROMETHYLATION PYRIDINES transition-metal-free trifluoroacetic acid 
Direct photolysis of N-methoxypyridiniums for the pyridylation of carbon/heteroatom-hydrogen bonds被引量:1
《Science China Chemistry》2022年第12期2494-2499,共6页He Sheng Bei-Bei Zhang Qiang Liu Zhu-Sheng Yang Zhi-Xiang Wang Xiang-Yu Chen 
supported by the National Natural Science Foundation of China(E2240303,22001248);the Fundamental Research Funds for the Central Universities and the University of the Chinese Academy of Sciences.
Current synthetic methods for the functionalization of pyridinium salts usually rely on transition metals,oxidants and/or photocatalysts.To date,no direct photolysis method exists under photocatalyst-,transition metal...
关键词:PHOTOLYSIS N-methoxypyridiniums hydrogen atom transfer PYRIDINES 
Recent advances in transition-metal-free C–H functionalization of imidazo[1,2-a]pyridines
《Green Synthesis and Catalysis》2022年第3期227-242,共16页Linlin Shi Tiantian Li Guang-Jian Mei 
support from the National Natural Science Foundation of China(Grant Nos.22101267);Natural Science Foundation of Henan Province(222300420084);application research plan of key scientific research projects in colleges and universities of Henan Province(22A150056).
Imidazo[1,2-a]pyridines are unique nitrogen-containing organic compounds with wide applications in pharma-ceuticals,natural products,material science and organometallics.Due to their significant biological and synthet...
关键词:Imidazo[1 2-a]pyridines Transition metal-free Iodo-mediated ORGANOCATALYST Oxidant-mediated Base-mediated CATALYST-FREE 
Ag_(2)O/squaramide cocatalyzed asymmetric interrupted Barton-Zard reaction of 8-nitroimidazo[1,2-a]pyridines
《Science Bulletin》2022年第16期1688-1695,M0004,共9页Qian Wan Chao Zheng Yao-Feng Yuan Shu-Li You 
supported by the National Key R&D Program of China(2021YFA1500100);the National Natural Science Foundation of China(21821002,22031012,and 22171282);the Science and Technology Commission of Shanghai Municipality(19590750400 and 21520780100)。
Imidazo[1,2-a]pyridines are present in numerous biologically active compounds as the core structural motif.Herein,we report an asymmetric interrupted Barton-Zard reaction of electron-deficient imidazo[1,2-a]pyridines ...
关键词:Asymmetric catalysis DEAROMATIZATION Interrupted Barton-Zard reaction Imidazo[1 2-a]pyridine Isocyanoacetates 
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