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NITRONES: 作品数：11被引量：10H指数：2; 导出分析报告; 相关领域：理学更多>>; 相关作者：罗艳更多>>; 相关机构：广西师范大学更多>>; 相关期刊：《Chinese Journal of Chemistry》《Chinese Chemical Letters》《Green and Sustainable Chemistry》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广西壮族自治区自然科学基金更多>>

Yb(OTf)_(3)-Catalyzed Asymmetric[3+3]Cycloaddition of N-Vinyl Nitrones with Activated Cyclopropanes to Prepare 1,2-Oxazines: 《Chinese Journal of Chemistry》2025年第4期417-422,共6页Yu-Zheng Wu Yue Leng Yi-Xin Chen Shi-Qiu Huang Ning Zou Chun-Hua Chen Dong-Liang Mo; Financial support from the NSFC(22071035);Natural Science Foundation of Guangxi(2023GXNSFDA026025);Guangxi Science and Technology Plan Project(AD23026046);Graduate Innovation Training Program of Guangxi(YCSW2024160);Natural Science Foundation of Sichuan(2023NSFSC1087);Guangxi Bagui Young Scholar is greatly appreciated.; We described a Yb(OTf)_(3) combined with Pybox ligand catalyzed asymmetric[3+3]cycloaddition of N-vinyl cinnamaldehyde nitrones with activated cyclopropanes to prepare various functionalized 1,2-oxazines in 24%—95% y...; 关键词：CYCLOADDITION Cyclopropane NITRONE 1 2-Oxazine Asymmetric catalysis Domino reactions Michael addition N-Heterocycle

Stereoselective construction of azepine-containing bridged scaffolds via organocata-lytic bicyclization of yne-allenone esters with nitrones: 《Chinese Chemical Letters》2023年第4期309-312,共4页Meng-Fan Li Shao-Qing Shi Ting Xu Qian Zhang Wen-Juan Hao Shu-Liang Wang Jianyi Wang Shu-Jiang Tu Bo Jiang; financial support from the National Natural Science Foundation of China (Nos. 21871112 and 21971090)。; A new organocatalytic double annulation cascade involving scission/recombination of N-O bonds of nitrones is reported for the first time, and used to produce a range of hitherto unprecedented tricyclic bridged-fused b...; 关键词：BICYCLIZATION DIASTEREOSELECTIVITY Organocatalysis Bridged heterocycles YNE-allenone esters NITRONES

Enantioselectivity Tunable Gold-Catalyzed Intermolecular[3+2]Cycloaddition of N-Allenamides with Nitrones被引量：2: 《Chinese Journal of Chemistry》2022年第12期1407-1412,I0002,共7页Bing Xu Zhan-Ming Zhang Jie Han Guangxin Gu Junliang Zhang; the National Key R&D Program of China 2021YFF0701600);the National Natural Science Foundation of China(22031004,21921003,21801078,22071060);Shanghai Municipal Education Commission(20212308).; A highly enantioselective gold-catalyzed intermolecular[3+2]cycloaddition of N-allenamides with nitrones was realized by the application of Ming-Phos M6 as a chiral ligand.Both enantiomers of the cycloadducts with opp...; 关键词：GOLD Asymmetric catalysis Fluorine effect CYCLOADDITION Multifunctional ligand

Gold（Ⅰ）-Catalyzed Diastereo- and Enantioselective Synthesis of Polysubstituted Pyrrolo[3,4-d][1,2 ]oxazines被引量：3: 《Chinese Journal of Chemistry》2018年第6期519-525,共7页MeiZhang Xiaoyu Di Mingrui Zhang Junliang Zhang; We are grateful to the National Natural Science Foundation of China （21425205）, Ministry of Education of China, Ying Tung Education Foundation （121014） for financial support.; A gold（I）-catalyzed highly diastereo- and enantioselective intermolecular cycloaddition of oxime ethers with nitrones under mild conditions was developed, which provides an facile access to optically pure highly sub...; 关键词：gold（Ⅰ）-catalysis heterobicyclic pyrroles oxime ethers NITRONES tandem reaction

[3＋3] Formal Cycloadditions of Nitrones from Isatins and Azaoxyallyl Cations for Construction of Spirooxindoles被引量：1: 《Chinese Journal of Chemistry》2017年第6期857-860,共4页Weijia Lin Gu Zhan Minglin Shi Wei Du Yingchun Chen; A [3＋3] formal cycloaddition reaction between in situ formed azaoxyallyl cations and nitrones from isatins has been developed, furnishing a spectrum of spiro[1,2,4-oxadiazinan-5-one]oxindoles in good to excellent yie...; 关键词：CYCLOADDITION SPIROOXINDOLES azaoxyallyl cations NITRONES 1 3-dipoles

On Water： Free Catalysis Approach for the Synthesis of Nitrones from Hydroxamic Acids and Dimethy/ Diethyl Acetylenedicarboxylate被引量：1: 《Chinese Journal of Chemistry》2013年第8期1003-1006,共4页Jian Li Yongqin He Xiaoyu Ren Xiaokang Shi Sizhuo Yang Xiai Gao Guosheng Huang; Benzohydroxamic acid reacts with dimethyl acetylenedicarboxylate in the presence of 10 mol% NaOAc to gen- erate （E）-N-（1,4-dimethoxy-l,4-dioxobutan-2-ylidene）-l-phenylcarboxamide oxide in good-to-excellent yield i...; 关键词：NITRONES benzohydroxamic acid dimethyl acetylenedicarboxylate environmentally friendly greenchemisty

Solar Thermochemical Reactions IV: Unusual Reaction of Nitrones with Acetonitrile Derivatives Induced by Solar Thermal Energy: 《Green and Sustainable Chemistry》2011年第4期176-181,共6页Ramadan Ahmed Mekheimer Khadijah Mohamed Al-Zaydi Asma Al-Shamary Kamal Usef Sadek; The behaviour of cyanothioacetamide 1 and the acetonitrile derivatives 6 and 10, respectively, towards the nitrones 2a-i induced by free solar thermal energy is reported. Structures and reaction mechanisms are also di...; 关键词：NITRONES Cyanothioacetamide 2-(Hetaryl)Acetonitrile DERIVATIVES Synthesis SOLAR Thermal Energy.

Synthesis of O-glycosylα-aryl nitrones被引量：3: 《Chinese Chemical Letters》2010年第9期1075-1078,共4页Ying Fu Huai Yuan Zhang Yan Hua Liu Xue Feng Li Dan Feng Huang Yu Lai Hu; support from National Natural Science Foundation of China(No.20962017) ;the Natural Science Foundation of Gansu Province,China(No.2007GS03630); α-Aryl nitrone are one of the most useful kinds of nitrones and have been extensively explored in recent years.However,the sugar moieties have not been introduced into these molecules before.We presented here an effi...; 关键词：NITRONES GLYCOSIDES Aryl aldehyde HYDROXYLAMINE SYNTHESIS

Unusual Cycloadducts from the Dipolar Cycloaddition of Allenyl Perfluoroalkyl Sulfones to Nitrones: 《Chinese Journal of Chemistry》2007年第5期649-652,共4页王小进刘金涛; The dipolar cycloaddition reaction of allenyl perfluoroalkyl sulfones （1） to nitrones （2） was described. Unlike nonfluorine-containing allenyl sulfones, 1 reacted readily with 2 in ether at room temperatttre and u...; 关键词：allenyl perfluoroalkyl sulfone NITRONE dipolar cycloaddition ZWITTERION

Synthesis of 5-Fluoroalkyl Isoxazolidines via 1,3-Dipolar Cycloaddition of Ethyl 2-Hydropolyfluoroalk-2- enoates with Nitrones: 《Chinese Journal of Chemistry》2004年第9期945-949,共5页刘金涛金其辉吕贺军黄维垣; the National Natural Science Foundation of China (No. 20172065).; Dipolar cycloaddition reactions of ethyl 2-hydropolyfluoroalk-2-enoates (1) with some nitrones were de-scribed. The reaction of 3,4-dihydroisoquinoline N-oxide (2) with 1 took place readily in methylene chloride at ro...; 关键词：fluoroalkyl isoxazolidine ethyl 2-hydropolyfluoroalk-2-enoate NITRONE cycloaddition synthesis

NITRONES