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Copper（I）-Catalyzed Intramolecular N-N Coupling of Cyclopropyl O-Acyl Ketoximes： Synthesis of Spiro-fused Pyrazolin-5-ones

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Chinese Journal of Chemistry 2016年第12期34卷 1309-1320页

作者： Zhiguo Zhang Junlong Li Guoqing Huang Kai Sun Guisheng Zhang Nana Ma Qingfeng liu tongxin liu Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun Jilin 130024 China Handan Purification Equipment Research Institute Handan Hebei 056027 China College of Chemistry and Chemical Engineering Anyang Normal University Anyang Henan 455000 China

A convenient copper-catalyzed approach has been developed for the synthesis of substituted spiro-fused pyrazolin-5-ones from readily available cyclopropyl O-acyl ketoximes via an intramolecular N-N bond formation reac... 详细信息

关键词： copper-catalyzed N-Nbond formation O-acyl ketoximes pyrazolin-5-ones cyclopropyl oximes

Revealing the effect of anion-tuning in bimetallic chalcogenides on electrocatalytic overall water splitting

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Nano Research 2021年第12期14卷 4548-4555页

作者： Jian Zhou Yibo Dou Tao He Awu Zhou Xiang-Jing Kong Xue-Qian Wu tongxin liu Jian-Rong Li Beijing Key Laboratory for Green Catalysis and Separation Faculty of Environment and LifeBeijing University of TechnologyBeijing100124China

Enhancing electrocatalytic water splitting performance by modulating the intrinsic electronic structure is of great importance. Here, porous bimetallic oxide and chalcogenide nanosheets grown on carbon paper denoted as NiCo2X4/CP (X = O, S, and Se) are prepared to demonstrate how the anion components affect the electronic structures and thereby disclose the correlation between their intermediates interaction and catalytic activities. The experimental characterization and theoretical calculation demonstrate that Se and S substitution can promote the ratio of Co^(3+)/Co^(2+) and thereby modulate the electronic structure accompanied with the upshift of d band centers, which not only enhance the inner conductivity but also regulate the interaction between the catalyst surface and intermediates, especially for the adsorption of absorbed H and hydroperoxy intermediates towards respective hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). As a result, a full alkaline electrolyzer using NiCo2Se4/CP and NiCo2S4/CP as cathode and anode delivers a low voltage of 1.51 V at 10 mA·cm^(−2), which is comparable even superior to most transition metal-based electrolyzers.

关键词： electrocatalytic overall water splitting electronic structure bimetallic chalcogenide high valence Co3+ intermediates interaction

Pre-harvest and post-harvest application of benzothiadiazole for controlling anthracnose and extending shelf life of harvested banana

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International Journal of Agricultural and Biological Engineering 2013年第4期6卷 76-83页

作者： Li Xueping Shi Jingying Zhu Xiaoyang Wang Jinghua Yuan Zhenxin Luo Jun liu tongxin Wang Rong Rao Shen Chen Weixin State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables College of HorticultureSouth China Agricultural UniversityGuangzhou 510642China College of Food Science and Engineering Shandong Agricultural UniversityTaian 271018China

Anthracnose,caused by the fungus Colletotrichum musae,is a serious latent post-harvest disease of banana,which results in major economic losses during transportation and ***-thiadiazole-7-carbothioic acid S-methyl ester(BTH),a functional analogue of the plant endogenous hormone-like compound salicylic acid(SA),has been known to possess resistant effects on some diseases caused by *** aim of present study was to select an appropriate BTH concentration and an appropriate stage of banana ripening for its application in controlling anthracnose and extending shelf life of harvested banana *** concentrations of BTH(50,100,200 and 300μg/mL)were applied at different stages of banana fruit ripening,including one week,two weeks and one month before *** results suggest that while the concentrations of BTH ranging from 50μg/mL to 200μg/mL in both pre-harvest and post-harvest application,this could control anthracnose of harvested banana fruit,the appropriate concentration of BTH in both pre-harvest and post-harvest treatment was 100μg/mL and the best time of BTH treatment was two weeks before *** of quality parameters including peel color and firmness indicated that 100μg/mL BTH treatment delayed banana fruit ripening at room temperature.

关键词： banana fruit shelf life ripening post-harvest preservation BTH treatment anthracnose peel color firmness

Iron-Catalyzed Multicomponent Tandem Reaction for the Synthesis of(E)-6-Arylvinyl-3,4-dihydropyrimidin-2(1H)-ones

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Iron-Catalyzed Multicomponent Tandem Reaction for the Synthe...

河南省化学会2014年学术年会

作者： Zhiguo Zhang Lianqiang Zhang Qingfeng liu tongxin liu Guisheng Zhang School of Chemistry and Chemical Engineering Henan Normal University

A novel iron-catalyzed multi-component one-pot tandem reaction of Biginelli reaction/vinylogous aldol condensation has been developed for the synthesis of potential bioactive(E)-6-arylvinyl-3,4-dihydropyrimidin-2(1H)-... 详细信息

关键词： Multicomponent Reaction Biginelli reaction Aldol condensation reaction Iron catalyzed Vinylogous aldol condensation

SD100全数字交流伺服单元的应用技巧及故障处理

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制造技术与机床 2008年第2期 148-150页

作者：刘同新陕西省机械研究院陕西咸阳712081

选择国产交流伺服驱动KNDSD100为例证,介绍了伺服驱动器重要参数的设置方法和技巧,并将部分故障处理技巧展现给读者,具有实用性。

关键词：数控系统国产交流伺服驱动器交流伺服电动机

Copper(Ⅰ)Catalyzed C(sp2)-N bond formation for the Synthesis of Pyrrolo[3,2-c]quinolinone Derivatives

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Copper(Ⅰ)Catalyzed C(sp2)-N bond formation for the Synthesi...

中国化学会全国第十一届有机合成化学学术研讨会

作者： Jingjing Qian Zhiguo Zhang Qingfeng liu tongxin liu Guisheng Zhang Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University

The pyrrolo[3,2-c]quinoline tricyclic systems are known as the core structures of natural products martinellic acid and martinelline and other bioactive molecules. The derivatives possessing such tricyclic angular heterocycle with a wide broad biological activities, including most notably antitumor properties, gastric(H+/K+)-ATPase inhibitor, hypotensive, and ***,We report an efficient copper(I) catalyzed C(sp)-N bond formation for the Synthesis of Pyrrolo[3,2-c]quinoIinone derivatives in moderate to good yields in an oxygen atmosphere.

关键词： C(sp~2)-N Bond formation Pyrrolo[3,2-c]quinolinone Copper catalyzed DMSO

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数控系统参数在数控机床使用和维修中的应用

制造技术与机床 2007年第12期 124-127页

作者：刘同新陕西省机械研究院陕西咸阳712081

通过利用参数使用和维修数控机床的例证,说明了数控系统参数的重要性和分类;并理论结合实际,说明数控系统的参数是数控机床使用和维修的基础。

关键词：数控系统参数分类使用维修

PIFA-Mediated Oxidative C(sp2)-N Bond Coupling for Synthesis of Quinolinones and Its Application to Pyrrolo[3,2-c]quinolinones

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PIFA-Mediated Oxidative C(sp2)-N Bond Coupling for Synthesis...

中国化学会全国第十一届有机合成化学学术研讨会

作者： Zhonglian Li Zhiguo Zhang Qingfeng liu tongxin liu Guisheng Zhang Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University

Quinolinones are an important class of heterocycles,which have been known to exhibit a broad range of biological properties including antibiotic, anticancer, antiviral, and antihypersensitivity. We report here an efficient metal-free oxidative C(sp)-N formation reaction for the synthesis of *** the obtained quinolinones are applied to the synthesis of pyrrolo[3,2-c]quinolinones via an amines rion-opening reaction.

关键词： Quinolinones Metal-free C-N Bond formation Oxidative coupling Pyrrolo[3,2-c]quinolinones

Copper(I) iodide Catalyzed Cascade Oxidation/Formylation Reaction:The Synthesis of α-Formyl Pyrroles

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Copper(I) iodide Catalyzed Cascade Oxidation/Formylation Rea...

河南省化学会2014年学术年会

作者： Jingjing Qian Zhiguo Zhang Qingfeng liu tongxin liu Guisheng Zhang School of Chemistry and Chemical Engineering Henan Normal University

An efficient copper-catalyzed tandem oxidation/α-formylation reaction of2,3-dihydro-1H-pyrroles in oxygen atmosphere has been *** new reaction is conducted in dimethyl sulfoxide,which serves as both the carbonyl source and solvent,in the presence of trifluoroacetic acid to directly generate structurally diverseα-formylpyrrole derivatives in one pot in moderate to good yields.

关键词： Formylation reaction 1H-pyrrole Copper catalyzed DMSO