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Chinese Chemical Letters 2008年第11期19卷 1268-1270页

作者： Ning Ma zhi jin fan Bao Lei Wang Yong Hong Li Zheng Ming Li Department of Chemistry School of Science lianjin University lianjin 300072 China State Key Laboratory of Elemento Organic Chemistry Institute of Elemento-Organic Chemistry Nankai University Tianjin 300071 China

Four 4-monosubstituted pyrimidine pyridyl sulfonylureas were synthesized from pyridinesulfonamide and phenyl pyrimidylcarbamate and screened for herbicidal activities. We also reported a convenient preparation process... 详细信息

关键词： Sulfonylurea Herbicidal activity Phenyl carbamate

Synthesis and biological activity of novel N-(3-furan-2-yl-1-phenyl-1H-pyrazol-5-yl) amides derivatives

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Chinese Chemical Letters 2016年第9期27卷 1547-1550页

作者： jing-Qian Huo Liu-Yong Ma Zhe Zhang zhi-jin fan jin-Lin Zhang Tetyana V. Beryozkina Vasiliy A. Bakulev College of Plant Protection Agricultural University of Hebei Baoding 071001 China State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 China The Ural Federal University Named after the First President of Russia B.N. Yeltsin Ekaterinburg 620002 Russia

A series of novel N-（3-furan-2-yl-l-phenyl-lH-pyrazol-5-yl） amides derivatives were designed and synthesized. Their structures were confirmed by 1H NMR, 13C NMR and HRMS. All title compounds were evaluated for their herbicidal and antifungal activities. Preliminary bioassay results indicated that the title compounds showed good to moderate herbicidal activity at 1000 mg/L. Compound 6q presented the best activity against Digitaria sanguinalis （L） Scop., Amaranthus retroflexus L. and Arabidopsis thaliana with an inhibition degree of five. Compound 6d also showed an inhibition degree of five against D. sanguinalis. In addition, at 50 mg/L, most compounds exhibited good in vitro antifungal activity against Sclerotinia sclerotiorum, with compound 6c showing over 90% antifungal activity against S. sclerotiorum and Pellicularia sasakii.

关键词： Amides derivative Pyrazole Furan Synthesis Herbicidal activity Fungicidal activity

Synthesis and anti-TMV activity of novel N-(3-alkyl-1H-pyrazol-4-yl)-3-alkyl-4-substituted-1H-pyrazole-5-carboxamides

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Chinese Chemical Letters 2012年第6期23卷 669-672页

作者： Da Qiang Zhang Gao Fei Xu zhi jin fan Dao Quan Wang Xin Ling Yang De Kai Yuan Department of Applied Chemistry Science College China Agricultural University t~eijing 100193 China The State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China

In order to investigate the biological activity of novel bis-pyrazole compounds, a series of N-（3-alkyl-5-（N-methylcarbamyl）- 1H-pyrazol-4-yl）-3-alkyl-4-substituted-lH-pyrazole-5-carboxamides were designed and synthesized with ethyl 3-alkyl-lH-pyr- azole-5-carboxylate 1 as starting materials. N-Methyl-3-alkyl-4-amino-lH-pyrazole-5-carboxamides 6 were obtained from 1 via 5 steps. 3-Alkyl-4-substitued-lH-pyrazole-5-carboxyl chlorides 4a, 4b, lla, llb, llc or 12 were also obtained from 1 via several steps. Target compounds 7a-Tg were obtained after the reaction of 6 with the above 1H-pyrazole-5-carboxyl chlorides. Preliminary bioassay showed some compounds possessing good inactivation effect against TMV （tobacco mosaic virus）. Compound 7a showed higher activity superior to ningnanmycin at a concentration of 5.0 × 10^-4 g/mE and equal activity at 1.0 × 10^-4 g/mE; 7b and 7c showed equal activity to virazole both at concentrations of 5.0 × 10^-4 g/mE and 1.0 × 10^-4 g/mL.

关键词： Bis-pyrazole compounds 3-Alkyl-4-amino-lH-pyrazole-5-carboxamides 3-Alkyl-lH-pyrazole-5-carboxyl chlorides Inactivationeffect TMV

Improvement in hydrogen storage performance of MgH_(2) by vanadium doped with ZIF-8 derived a single-atom catalyst V-N-C

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Rare Metals 2024年第6期43卷 2623-2635页

作者： Fei-fan Hong Wei-Tao Shi Ruo-Lin Zhao Yi fan Zi-Qi Liu Si-zhi Ding Hai-Zhen Liu Wen-Zheng Zhou jin Guo zhi-Qiang Lan Guangxi Novel Battery Materials Research Center of Engineering Technology and Center on Nanoenergy Research Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems IntegrationCarbon Peak and Neutrality Science and Technology Development InstituteSchool of Physical Science and TechnologyGuangxi UniversityNanning 530004China Nanning Engineering Technology Research Center for Power Transmission System of New Energy Vehicle Transportation CollegeNanning UniversityNanning 530200China

Herein,the successful preparation of a singleatom catalyst V-N-C using vanadium-doped zeolitic imidazolate framework(ZIF)-8 as a precursor is *** experimental results showed that the V-N-C had a good promoting effect on the hydrogen storage performance of MgH_(2),and the optimal addition amount of V-N-C was 10wt%.The hydrogenation and dehydrogenation apparent activation energies of 10 wt%V-N-C-catalyzed MgH_(2)were reduced by 44.9 and 53.5 kJ·mol^(-1),respectively,compared to those of additive-free MgH_(2).The 10 wt%V-N-C-catalyzed MgH_(2)could reabsorb 5.92 wt%of hydrogen in 50 min at 150℃,with a capacity retention rate of 99.1%after 30 cycles of hydrogen absorption and *** analysis showed that V-N-C was partially transformed into VN and metallic V when it was milled with MgH_(2);the in-situ-formed VN and metallic V played an important role in improving the hydrogen storage performance of MgH_(2).This approach provides a potential solution for obtaining high-performance Mg-based hydrogen storage materials through synergistic interactions between V,N and C.

关键词： MgH_(2) Hydrogen storage materials Catalyst Hydrogen storage perormance

Holographic superfluid ring with a weak link

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Science China(Physics,Mechanics & Astronomy) 2024年第11期67卷 29-38页

作者： zhi-Hong Li Huai-fan Li Department of Physics Shanxi Datong UniversityDatong 037009China Institute of Theoretical Physics Shanxi Datong UniversityDatong 037009China

We explore the generation of topological defects in the course of a dynamical phase transition in a ring with a weak link, i.e., a SSS Josephson junction, from the AdS/CFT correspondence. By setting different parameters of the junction(width, steepness,depth) and the final temperature of the quench, the configurations of the charge density and condensate of the order parameters of the dual field theory are presented. Meanwhile, we observe that in the final equilibrium state, variations in parameters of the junctions only affect the configurations of the charge density and condensate of the order parameters, without altering their values outside the junction. However, variations in the final temperature will directly affect the values of the charge density and condensate of the order parameters outside of the junction. Moreover, in the final equilibrium state, we propose an analytic relation between the gauge-invariant velocity in the two superconducting states in the SSS Josephson junction, which agrees well with the numerical results.

关键词： AdS/CFT correspondence holographic superfluid holographic Josephson junction

Synthesis and bioactivity of N-tert-butyl-N′-acyl-5-methy 1-1,2,3-thiadiazole-4-carbohydrazides

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Chinese Chemical Letters 2012年第11期23卷 1233-1236页

作者： Wu Tao Mao Hui Zhao zhi jin fan Xiao Tian Ji Xue Wen Hua Tatiana Kalinina Yu.Morzherin Yury A.Bakulev Vasiliy Department of Chemistry Tianjin UniversityTianjin 300072China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianfin 300071China The Ural Federal University Named after the First President of Russia B.N.Yeltsin Yeltsin UrFU 620002EkaterinburgRussia

A series of novel N-tert-butyl-N＇-acyl-5-methyl-1,2,3-thiadiazole-4-carbohydrazides were designed and synthesized. Their structures were characterized by melting points, ^1H NMR, IR, ESI-MS, and elemental analysis. The bioassay tests indicated that compound 7o exhibited excellent direct anti-TMV activity and induction activity in vivo at 50μg/mL, which was better than that of Ninamycin and tiadinial. Our studies indicated that 1,2,3-thiadiazole was an active substructure for novel pesticide development.

关键词： Antivirus activity Systemic acquired resistance Synthesis 1,2,3-Thiadiazole Diacylhydrazine

Hierarchical V_(3)S_(4)/C nanofibers with fast kinetics for superior alkali metal batteries

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Rare Metals 2024年第4期43卷 1836-1844页

作者： Li Chen zhi-Xin Rao zhi Chen Zhao-Hui Wu Shuai Yang zhi-Jun Feng Hui-Yong Yang fan-Yan Zeng Xi-Bao Li jin-Yang Hu Jun-Tong Huang School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang330063China School of Aeronautical Manufacturing Engineering Nanchang Hangkong UniversityNanchang330063China

Owing to the numerous benefits,including low cost and great theoretical capacity,V3S4 has been a research hotspot for Li^(+)/Na^(+)/K^(+) ***,the V_(3)S_(4) electrode with long cycling stability and high specific capacities continues to pose significant *** this work,vacuum vulcanization is combined with electrospinning to synthesize V_(3)S_(4)/C composite nanofibers(V_(3)S_(4)@CNF).

关键词： composite fibers kinetics

Synthesis of tetrazole containing 1,2,3-thiadiazole derivatives via U-4CR and their anti-TMV activity

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Chinese Chemical Letters 2013年第10期24卷 889-892页

作者： Shou-Xin Wanga Zhen fang zhi-jin fan Dun Wang Yue-Dong Li Xiao-Tian Ji Xue-Wen Hua Yun Huang Tatiana A.Kalinina Vasiliy A.Bakulev Yury Yu.Morzherin School of Basic Sciences Jining Medical University State Key Laboratory of Elemento-Organic Chemistry Nankai University Department of Plant Pathology Sichuan Agricultural University The Ural Federal University Named after the First President of Russia B.N.Yeltsin

A series of novel tetrazole containing 1,2,3-thiadiazole derivatives were designed and synthesized via Ugi reaction. Their structures were confirmed by melting points, IR, 1H NMR, and HRMS （ESI）. Preliminary bioassay indicated that most target compounds exhibited very good direct anti-TMV activity at 100 μg/mL, which was equal to or higher than that of ribavirin. Among them, compounds 4b, 4c and 4i also showed equivalent protection effect to ribavirin in vivo at 100 μg/mL.

关键词： 1 2 3-Thiadiazole Tetrazole Anti-TMV activity Ugi reaction

Sedimentary paleoenvironment and its control on organic matter enrichment in the Mesoproterozoic hydrocarbon source rocks in the Ordos Basin, southern margin of the North China Craton

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Petroleum Science 2024年第4期21卷 2257-2272页

作者： zhi-Chen Wu Ju-Ye Shi Tai-Liang fan Ming Jiang School of Energy Resources China University of Geosciences (Beijing) Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism Ministry of Education China University of Geosciences (Beijing)

The black shale of the Mesoproterozoic Cuizhuang Formation in the Changcheng System in Yongji city,North China Craton, is a potential source rock. Understanding the organic matter enrichment mechanism is crucial for evaluating source rock resources and understanding oil and gas accumulation *** this study, we evaluated the sedimentary paleoenvironment and organic matter enrichment mechanisms of shale using thin section observations, mineral composition analysis, organic geochemistry, and elemental geochemistry. We found significant differences in the sedimentary paleoenvironment and organic matter enrichment mechanisms between the lower Cuizhuang Formation and the Beidajian Formation shale. The Cuizhuang Formation was deposited in a late-stage, restricted basin environment during the rift phase, and elemental and geochemical indicators showed that the Cuizhuang Formation was in a suboxic-anoxic water environment, that was influenced by a warm and humid paleoclimate and submarine hydrothermal activities, which promoted the accumulation of organic matter. However, the enrichment of organic matter in the Cuizhuang Formation was mainly controlled by redox *** formation of suboxic-anoxic water environments may be closely related to the warm and humid paleoclimate and submarine hydrothermal activities. Warm conditions promote continental weathering and increase marine productivity, thereby consuming oxygen in the bottom water. Moreover, acidic hydrothermal activity also helps to establish an anoxic environment. Our results reveal the effects controlling various coupled mechanisms dominated by redox conditions, which may explain the development of source rocks in the Cuizhuang Formation.

关键词： Cuizhuang formation Paleoproterozoic source rocks Marine productivity Paleoenvironments Submarine hydrothermal activity Organic matter enrichment

Synthesis and biological evaluation of novel 1,2,4-triazole containing 1,2,3-thiadiazole derivatives

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Chinese Chemical Letters 2013年第12期24卷 1134-1136页

作者： Yue-Dong Li Wu-Tao Mao zhi-jin fan Juan-Juan Li Zhen fang Xiao-Tian Ji Xue-Wen Hua Guang-Ning Zong Feng-Yun Li Chao-Lun Liu Jian-Hua Yu State Key Laboratory of Elemento-Organic Chemistry Nankai University Division of Hematology College of Medicine and School of Public HealthThe Ohio State University

A series of novel 1,2,4-triazoles containing 1,2,3-thiadiazole derivatives were designed and synthesized. Their structures were confirmed by melting points, IR, 1H NMR, and elemental analysis and ESI-MS or HRMS. Preliminary bioassays indicated that these compounds exhibited very good insecticidal activity against Aphis laburni at 100 μg/mL, with mortality no less than 95%. Compounds 6a, 6c, 6f, 61 showed higher curative activity against TMV and compound 6h showed a higher induction effects against TMV in vivo at 100 μg/mL. Collectively, our data demonstrate a new strategy for control of insects and viruses.

关键词： 1 2 3-Thiadiazole 1 2 4-Triazole Insecticidal activity Anti-TMV activity