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ANNULATION: 作品数：146被引量：108H指数：5; 导出分析报告; 相关领域：理学更多>>; 相关作者：李雪吴安心成江段英李东密更多>>; 相关机构：南开大学中山大学扬州大学郑州大学更多>>; 相关期刊：《Precision Chemistry》《Frontiers of Medicine》《Organic Chemistry Frontiers》《Science China Chemistry》更多>>; 相关基金：国家自然科学基金中国博士后科学基金国家教育部博士点基金国家重点基础研究发展计划更多>>

Phosphine-Catalyzed[5+1]Annulation of Morita-Baylis-Hillman Carbonates with 1,3-Dicarbonyl Compounds: 《有机化学》2024年第12期3739-3746,共8页Ren Yue Shi Wangyu Tang Yi Guo Hongchao; 国家自然科学基金(No.22071264)资助项目。; Phosphine-catalyzed[5+1]annulation reaction of Morita-Baylis-Hillman(MBH)carbonates with 1,3-dicarbonyl compounds has been developed,producing biologically interesting spirocyclohexene derivatives in high yields with ...; 关键词：phosphine catalysis Morita-Baylis-Hillman carbonate 1 3-dicarbonyl compound dinucleophile spirocyclohexene

Divergent Assembly of Functionalized Pyrazolo[1,5-a]pyridine Derivatives via[3+2]Cyclization of N-Aminopyridinium Salts with Various Unsaturated Hydrocarbons: 《Chinese Journal of Chemistry》2024年第24期3355-3361,共7页Xiang Liu Shaohong Ma Shi Yan Xiaotian Shi Shuting Li Yanlong Ma Hua Cao; supported by a Start-up Grant from Guangdong Pharmaceutical University(Grant No.51304043005);Guangdong Province College Student Innovation and Entrepreneurship Training Program Project(202310573021).; Two reaction modes for metal-free[3+2]cyclization of N-aminopyridinium derivatives withβ-alkoxyvinyl trifluoromethylketones have been described through selective C—O or C—O/C—C bond cleavage.This strategy can also...; 关键词：Synthetic methods ALKENES CYCLIZATION [3+2]Annulation N-HETEROCYCLES

Amide-Based Morita–Baylis–Hillman Carbonates for Phosphine-Catalyzed Asymmetric(4+2)Annulation: 《Chinese Journal of Chemistry》2024年第24期3269-3277,共9页Min Liu Qihuan Han Lan Wang Xi Chen Xue Zhang Hongchao Guo; supported by the National Natural Science Foundation of China(Nos.21871293,22071264).; Chiral phosphine-catalyzed asymmetric(4+2)annulation of the amide-based Morita–Baylis–Hillman(MBH)carbonates withβ,γ-unsaturated butenolides has been developed to give enantiomer-enriched bicyclicδ-lactamγ-butyr...; 关键词：Asymmetric catalysis Asymmetric synthesis Phosphine catalysis Organocatalysis Cycloaddition ANNULATION AMIDE MBH carbonate LACTAM Piperidinone Heterocycle

Ni–Al Bimetal-Catalyzed Tertiary C(sp^(3))–H Activation for Dual C–H Annulation of Formamides with Alkynes: 《CCS Chemistry》2024年第11期2671-2678,共8页Yi Li Yu-Peng Liu Mengying Xu Weiwei Xu Feng-Ping Zhang Mengchun Ye; the National Key R&D Program of China(grant no.2022YFA1504300);the National Natural Science Foundation of China(grant nos.22188101 and 22325103);the Haihe Laboratory of Sustainable Chemical Transformations and“Frontiers Science Center for New Organic Matter,”Nankai University(grant no.63181206);the Fundamental Research Funds for the Central Universities for financial support.; 3d-Metal-catalyzed tertiary C(sp^(3))–H bond activation has been a formidable challenge.Herein,a tertiary C(sp^(3))–H bond is smoothly activated by Ni–Al bimetallic catalysts for dual C–H annulation of formamides ...; 关键词：tertiary C(sp3)–H bond activation dual C–H annulation LACTAM BIMETAL nickel

Structurally Divergent Synthesis of Azetidines,5,6-Dihydro-1,3-oxazines and 2,3-Dihydro-1,4-oxazines through Palladium-Catalyzed Tandem Allylic Substitution Reaction: 《Chinese Journal of Chemistry》2024年第22期2773-2778,共6页Ru-Fang Meng Yu-Juan Kong Xiao-Yan Wu Huan Zhang Wei Wang Wen-Jie Liang Lan Zheng Chenxiang Lin Wei Su Jun-An Xiao; support from the Natural Science Foundation of Guangxi(2023GXNSFDA026063);National Natural Science Foundation of China(22261036);High-level Innovation Team and Outstanding Scholar Program in Guangxi Colleges and Universities.; A regiodivergent synthesis of azetidines,5,6-dihydro-1,3-oxazines and 2,3-dihydro-1,4-oxazines has been achieved through palladium-catalyzed tandem allylic substitution reaction.This protocol provides a variety of het...; 关键词：Palladium catalysis ANNULATION AZETIDINE Domino reactions Regioselectivity Allylic dicarbonate Allylic substitution

Rh(Ⅲ)-Catalyzed Aminoalkylation of Alkenes with Diazo Compounds toward Functionalized Isoindolinones: 《有机化学》2024年第11期3505-3517,共13页Yuying Liu Zhanwei Fu Chao Yang Mupeng Luo Shurong Ban Shouguo Wang; 山西省自然科学基金(No.202303021221131);山西省特色药物研制工程研究中心和深圳市科技创新委员会(Nos.JCYJ20210324101810028,JCYJ-20220818101601004,JCYJ20220818095801004)资助项目.; A[Cp*RhCl_(2)]_(2)-catalyzed intramolecular annulation reaction via aminoalkylation of alkenes with diazo compounds has been developed to construct highly-functionalized isoindolinones.This approach exhibits step econ...; 关键词：aminoalkylation reaction annulation reaction ISOINDOLINONE Rh(Ⅲ)-catalysis diazo compounds

Oxidative spirolactonisation for modular access of γ-spirolactones via a radical tandem annulation pathway: 《Chinese Chemical Letters》2024年第10期249-252,共4页Jindian Duan Xiaojuan Ding Pui Ying Choy Binyan Xu Luchao Li Hong Qin Zheng Fang Fuk Yee Kwong Kai Guo; the National Natural Science Foundation of China(No.22078150);the Natural Science Foundation of Jiangsu Province,Frontier Project(No.BK20212003)for their financial support;the RGC of Hong Kong(No.14308922);the Guangdong Research Fund(No.2022A1515010955);CUHK Direct Grant(No.4053559)。; An oxidative annulation of 2-arylidene-1,3-indanediones with Meldrum's acid has been developed for the divergent syntheses of spirolactones with a spirocenter located at theγ-position with respect to the carbonyl gro...; 关键词：Spirolactonisation y-Spirolactones 2-Arylidene-1 3-indanediones Meldrum's acid Divergentsynthesis

NH_(4)SCN-Promoted Formal[3+3]Annulation for the Synthesis of 5-Arylated Pyrazolo[1,5-a]pyrimidines: 《有机化学》2024年第9期2832-2840,共9页Li Longlong He Xinyue Zhou Longsheng Qu Hengtong Feng Chengtao Xu Kun; 安徽省自然科学基金(No.2008085MB50);安徽省高校自然科学研究重点(No.KJ2021A0598)资助项目.; A formal[3+3]annulation of 3-aminopyrazoles with cinnamaldehydes or cinnamyl alcohols mediated by NH_(4)SCN has been developed.This protocol provides a practical route to construct 5-arylated pyrazolo[1,5-a]pyrimidine...; 关键词：tandem cyclization hypervalent iodine regioselectivity pyrazolo[1 5-a]pyrimidine CINNAMALDEHYDE

Efficient Construction of Quinoxaline Derivatives by Cesium Hydroxide-Catalyzed Mild Aerobic Annulation Reaction: 《有机化学》2024年第9期2933-2942,共10页Huang Zhenru Jin Guoshun Chen Tianyu Feng Bin Shi Xinkang Chen Minfang Hua Lusheng Xu Qing; 国家自然科学基金(No. 21672163);江苏省双创计划资助项目.; Simple inorganic base cesium hydroxide is found to be the best catalyst for aerobic annulation reaction of o-phenylenediamine andα-hydroxy-2-phenylacetophenone in constructing the quinoxaline skeleton,i.e.,catalytic ...; 关键词：transition metal-free cesium hydroxide catalysis quinoxaline skeleton air room temperature

I_(2)-DMSO-Mediated Multicomponent [2+1+1+1] Annulation Reaction via Ethyl Nitroacetate C-NO_(2), Bond Cleavage as a C1 Synthon: A Route to Multisubstituted β-Pyrrolidinones Derivatives with a Quaternary Center: 《Chinese Journal of Chemistry》2024年第17期2029-2034,共6页Zhi-Cheng Yu Xi Shen You Zhou Xiang-Long Chen Li-Sheng Wang Yan-Dong Wu An-Xin Wu; supported by the National Natural Science Foundation of China(Grant 22171098);supported by Chengdu Guibao Science&Technology Co.,Ltd.and the 111ProjectB17019.; A[2+1+1+1]cyclization reaction has been developed for the synthesis of multisubstituted 6-pyrrolidinones from commercially available aryl methyl ketones,primary amines,and ethyl nitroacetate.In this I_(2)-DMSO-meditat...; 关键词：CYCLIZATION Multisubstitutedβ-pyrrolidinones I_(2)-DMSO C1 building blocks Quaternary carbon center Late-stage modification Cracking

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