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Science China Chemistry 2020年第2期63卷 222-227页

作者： Ming-Bo Zhou Yang li Xuan-Hui Ouyang jin-heng li Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China Key Laboratory of Chemical Biology&Traditional Chinese Medicine Research(Ministry of Education) Hunan Normal UniversityChangsha 410081China State Key Laboratory of Applied Organic Chemistry Lanzhou University'Lanzhou 730000China

A new palladium-catalyzed oxidative conversion of N-arylpropiolamides and H2O to various indoline-2,3-diones and acids through the C≡C triple bond cleavage and C(sp2)–H functionalization is described,which is promoted by a cooperative action of catalytic CuBr2,2,2,6,6-tetramethyl-1-piperidinyloxy(TEMPO)and *** method provides a practical tool for transformations of alkynes by means of a C–H functionalization strategy,which enables the formation of one C–C bond and multiple C–O bonds in a single reaction with high substrates compatibility and excellent functional group tolerance.

关键词： alkynes indoline-2,3-diones acids C≡C bond oxidative cleavage C–H functionalization

Nickel-Promoted Oxidative ipso-Annulation ofN-（p-Methoxyaryl）propiolamides with a-Carbonyl Alkyl Bromides

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Chinese Journal of Chemistry 2017年第3期35卷 299-302页

作者： Meng li Ren-Jie Song jin-heng li Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang Jiangxi 330063 China State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan University Changsha Hunan 410082 China

A new route to producing 3-alkyl spiro[4,5]trienones via nickel-promoted radical oxidative ipso-annulation of N-(p-methoxyaryl)propiolamides with α-carbonyl alkyl bromides using TBHP oxidant is described. The method allows the formation of three new C—C bonds through a sequence of oxidative C—Br bond cleavage, ipso-cyclization and dearomatization, and represents a new alkyne 1,2-difunctionalization to access to the construction of spiro[4,5]trienones.

关键词： nickel radical ipso-annulation alkynes 3-alkyl spiro[4 5]trienones

Recent advances in radical-mediated [2+2+m] annulation of 1,n-enynes

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Science China Chemistry 2019年第11期62卷 1463-1475页

作者： Chong-Hui Xu Yang li jin-heng li Jian-Nan Xiang Wei Deng State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China

1,n-Enynes are a versatile class of unsaturated hydrocarbons that found broad applications in the synthetic community of natural products,biologically active structures and functional *** methods for the transformations of 1,n-enynes include the radical-mediated[2+2+m]annulation reaction as they are particularly efficient accesses to functionalized polycyclic *** herein highlighted recent process in the radical-mediated[2+2+m]annulation of 1,n-enynes,including[2+2+1]and[2+2+2]modes,for the construction of five-to six-membered-ring-fused polycyclic ***,the mechanisms for these transformations were described.

关键词： radical annulation oxidants 1 n-enynes polycycles

Cu(OAc)_2 catalyzed Sonogashira cross-coupling reaction in amines

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Chinese Chemical Letters 2007年第1期18卷 13-16页

作者： Sheng Mei Guo Chen liang Deng jin heng li Key Laboratory of Chemical Biology ＆ Traditional Chinese Medicine Research （Ministry of Education） College of Chemistry and Chemical Engineering Hunan Normal University Changsha 410081 China

A simple Cu（OAc）2 catalyzed Sonogashira coupling protocol is presented. It was found that the couplings of a variety of aryl halides with terminal alkynes were conducted smoothly to afford the corresponding desired ... 详细信息

关键词： Cu(OAc)2 Sonogashira cross-coupling reaction Aryl halide Alkyne

Nickel-catalyzed umpolung C-S radical reductive cross coupling of S-(trifluoromethyl)arylsulfonothioates with alkyl halides

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Chinese Chemical Letters 2023年第11期34卷 137-142页

作者： Yu-Zhong Yang Gui-Fen Lv Ming Hu Yang li jin-heng li Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China State Key Laboratory Base of Eco-Chemical Engineering College of Chemical EngineeringQingdao University of Science and TechnologyQingdao 266042China State Key Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhou 730000China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China

A new cooperative nickel reductive catalysis and N,N-dimethylformamide-mediated strategy for umpolung C–S radical reductive cross coupling of S-(trifluoromethyl)arylsulfonothioates with alkyl halides to produce alkyl aryl thioethers is described. This reaction features excellent selectivity, wide functionality tolerance, broad substrate scope, and facile late-stage modification of biologically relevant *** studies recognize initial generation of an amidyl radical anion via thermoinduced reduction of DMF with Sn, followed by umpolung reduction and single electron transfer of the nucleophilic sulfonyl moiety to form a sulphydryl radical and engage the Ni^(0)/Ni^(Ⅰ)/Ni^(Ⅲ)/Ni^(I) catalytic cycle.

关键词： Nickel Radical Reductive cross coupling S-(Trifluoromethyl)arylsulfonothioates Alkyl halides Alkyl aryl thioethers

Palladium-Catalyzed Oxidative C=C Triple Bond Cleavage of 2-Alkynyl Carbonyl Compounds Toward 1,2-Dicarbonyl Compounds

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Chinese Journal of Chemistry 2020年第6期38卷 553-558页

作者： Ming-Bo Zhou Mu-Jia Luo Ming Hu jin-heng li Key Laboratory of Chemical Biology&Traditional Chinese Medicine Research(Ministry of Education) Hunan Normal UniversityChangshaHunan 410081China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchangJiangxi 330063China State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan UniversityChangshaHunan 410082China

A new,gen era I palladium-catalyzed oxidative strategy for the cleavage of the C=C triple bond is *** employing PdCI2/CuBr2/TEMPO and air as the catalytic system and H2O as the carbonyl oxygen atom source,a wide range of 2-alkynyl carbonyl compounds,including 1,3-disubstituted prop-2-yn-l-ones,propiolamides and propiolates,lost an alkynyl carbon to access various 1,2-dicarbonyl compounds,e.g.,1,2-diones,2-keto amides and 2-keto esters,through Wacker oxidation,intramolecular cyclization and C—C bond cleavage cascades.

关键词： 1,2 carbonyl cleavage

Palladium-catalyzed alkynylative[5+1]carboannulation of 1,3-diarylprop-2-yn-1-yl acetates with terminal alkynes enabled by C-H functionalization

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Organic Chemistry Frontiers 2022年第5期9卷 1389-1394页

作者： Jiang-Xi Yu li-Jun Wu Zhi-Qiang Wang Zhi-Feng Xu jin-heng li Key Laboratory of Functional Meta-Organic Compounds of Hunan Province Key Laboratory of Functional Organometallic Materials(University of Hunan Province)Hengyang Normal UniversityHengyang 421008China College of Sciences Central South University of Forestry and TechnologyChangsha410004China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan 475004China

A new method for the synthesis of 3-ethynyl-1-methylene-1,2-dihydronaphthalenes via copper-pro-moted palladium-catalyzed intermolecular alkynylative[5+1]carboannulation of 1-arylphenyl-prop-2-yn-1-yl acetates involving C–H functionalization is *** terminal alkyne molecules serve as an alkynylation reagent and a one-carbon unit to enable alkynylative[5+1]carboannulation with excellent selectivity control,broad substrate scope and good tolerance of functional groups.

关键词： catalyzed Palladium palladium

Copper-catalyzed oxidative phosphonoheteroarylation of alkenes with phosphonates and N-heteroarenes via P-H/C-H functionalization

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Organic Chemistry Frontiers 2022年第2期9卷 476-480页

作者： Chong-Hui Xu Zhi-Qiang Xiong Yang li Yan-Ping Zhu jin-heng li Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug EvaluationMinistry of EducationCollaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of ShandongYantai UniversityYantaiShandong264005China State Key Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhou 730000China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan 475004China

A copper-catalyzed oxidative intermolecular phosphonoheteroarylation of alkenes with phosphonates and nucleophilic N-heteroarenes(such as indoles and pyrroles)involving P-H/C-H functionalization for the synthesis of highly valuable β-(N-heteroaryl)-alkylphosphonates is *** method allows the incorporation of two functional groups,a phosphonate and a N-heteroarene,into the alkene in a single reaction step through oxidative formation of the P-centered radicals,addition across the CvC bond,single electron oxidation and C-H functionalization cascades.

关键词： oxidative phosphonate catalyzed

Ru(Ⅱ)-Catalyzed Selective C-H Alkynylation of Isoquinolones,Quinazolones and Phthalazinones with Bromoalkynes

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Chinese Journal of Chemistry 2024年第15期42卷 1686-1690页

作者： Quan-Jian Luo Han-Chi Wang jing Zhang jin-heng li Bo Sun State Key Laboratory Base of Eco-Chemical Engineering College of Chemical EngineeringQingdao University of Science and TechnologyQingdaoShandong 266042China State Key Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhouGansu 730000China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan 453007China

A new,selective Ru(Ⅱ)-catalyzed alkynylation reaction of isoquinolones,quinazolones and phthalazinones with readily available bromoalkynes has been *** reaction enables the selective construction of a new C(sp^(2))-C(sp)bond through C-H activation and C-Br functionalization,and offers an effective and selective route to synthesizing highly valuable alkynylated isoquinolone,quinazolone and phthalazinonederivatives with a wide substrate scope and highselectivity.

关键词： Ru(Ⅱ) Alkynylation Isoquinolones Bromoalkynes Heterocyclic compounds C-H activation C-C coupling Synthetic methods

Ru(II)-Catalyzed ortho C-H Allylation of N-Aryl-7-azaindoles with 2-Methylidene Cyclic Carbonate

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Chinese Journal of Chemistry 2024年第9期42卷 985-989页

作者： jing Zhang Quan-Jian Luo Han-Chi Wang jin-heng li Bo Sun State Key Laboratory Base of Eco-Chemical Engineering College of Chemical EngineeringQingdao University of Science and Technology QingdaoShandong266042China State key Laboratory of Applied Organic Chemistry Lanzhou University LanzhouGansu 7300ooChina School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan 453007China

A Ru(II)-catalyzed ortho allylation reaction of N-aryl-7-azaindole with readily available 2-methylidene cyclic carbonate has been *** reaction is an effective pathway for synthesizing 7-azaindole derivatives with a wide scope of substrates and high *** addition,the method can be extended to the allylation of other heterocyclic compounds and several cyclic carbonates,highlighting the practicality of this strategy for synthesis.

关键词： Ru(II) Allylation N-Aryl-7-azaindoles Cyclic carbonates Heterocyclic compounds C-H activation