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Convenient Synthesis of Host Molecule Containing Se-Se Bond

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Chinese Chemical Letters 1998年第9期9卷 813-814页

作者： Wei Jun KE xiu fang liu Han Shang XU (Institute of Chemistry, Wuhan University, Wuhan 430072) Institute of Chemistry Wuhan University Wuhan 430072 China

Key intermediate bis[2-amino-4,5-(15-crown-5)phenyl]diselenide was obtained by the convenient redox method. Crown-ether type host molecule containing Se-Se bond 2,11-dioxo-4,5:8,9-di(benzo[4',5']-15-crown-5)-6,7-diselena-3,10,16-triazabicyclo[10,3,1]hexadeca-1(16), 4, 8, 12, 14-pentaene was synthesized with high dillution technique.

关键词： host molecule organoselenium oxidation and reduction high dilution technique

Investigation of Plant Systemic Organoselena Compounds (Ⅰ) Synthesis of Selena-Morpholind and its Derivatives

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Chinese Chemical Letters 1997年第11期8卷 947-948页

作者： Han Sheng XU Jun WU Wei Ping LI xiu fang liu (Department of Chemistry, Wuhan University,Wuhan 430072) Department of Chemistry Wuhan University Wuhan 430072 China

The synthesis of selena-morpholine and its derivatives is described.

关键词： Investigation of Plant Systemic Organoselena Compounds Synthesis of Selena-Morpholind and its Derivatives

STUDIES ON CROWN ETHER CYANINE DYES (X). THE SYNTHESIS OF BENZOXAZOLE CROWN ETHER CYANINE DYES

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Chinese Chemical Letters 1991年第5期2卷 357-358页

作者： xiu fang liu Rong Hua TU Han Sheng XU Department of Chemistry Wuhan UniversityWuhan 430072

A simple method for synthesis of benoxazole crown ether cyanine dyes is described.

关键词： ppm STUDIES ON CROWN ETHER CYANINE DYES THE SYNTHESIS OF BENZOXAZOLE CROWN ETHER CYANINE DYES

Serum 25-Hydroxyvitamin D Level Might Be a Useful Indicator of Disease Severity in Obese Children With Atopic Dermatitis:A Case-Control Study

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International Journal of Dermatology and Venereology 2024年第1期7卷 6-11页

作者： Jing-Jing Chen Xiao-Kai fang xiu-Mei liu Xiao-Chun liu Xu Yao Department of Allergy and Rheumatology Hospital for Skin Diseases(Institute of Dermatology)Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingJiangsu 210042China

Objective:To assess the relationship between the severity of atopic dermatitis(AD)in children of varying weight categories and their serum 25-hydroxyvitamin D[25(OH)D]***:The study population comprised 899 patients with AD and 854 age-and sex-matched *** Mann-Whitney U test and Kruskal-Wallis H tests were used to assess differences between groups,and Spearman correlation analysis was used to test ***:The 25(OH)D level in the AD group was M(Q_(25),Q_(75)),24.0(19.7,28.4)ng/mL,which was significantly lower than the control group(26.4[23.6,29.9]ng/mL;Z=-3.34,P=0.001).25(OH)D levels in children with AD were negatively correlated with body mass index(r=-0.30,P<0.001),Severity scoring of Atopic Dermatitis(SCORAD;r=-0.14,P<0.001),total immunoglobulin E(r=-0.13,P<0.001),and eosinophil(r=-0.08,P=0.017).There were statistically significant differences in 25(OH)D(H=18.46,P<0.001),total immunoglobulin E(H=9.13,P=0.010),eosinophil(H=67.17,P<0.001),and SCORAD(H=10.49,P=0.005)among groups with different body mass index *** 25(OH)D levels were 22.3(17.5,27.1)ng/mL in the overweight AD group and 22.3(17.6,25.7)ng/mL in the obese AD group,which were significantly lower than those in the normal-weight AD group(24.7[20.4,25.5]ng/mL;P=0.003,P=0.004).25(OH)D levels were negatively correlated with SCORAD in obese AD patients(r=-0.25,P=0.010).Conclusion:Vitamin D insufficient or deficient is obvious in children AD *** 25(OH)D levels in the overweight/obese AD group are significantly lower than those in the normal-weight AD *** D level is negatively correlated with SCORAD in obese children with AD.

关键词： atopic dermatitis vitamin D disease severity index immunoglobulin E body mass index eosinophil children overweight/obese

An Improved Synthesis of dl-Muscone

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Chinese Chemical Letters 1997年第1期8卷 17-18页

作者： Han Song CHEN xiu fang liu Han Sheng XU (Department of Chemistry, Wuhan University, Wuhan 430072)(Current address: Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071) Department of Chemistry Wuhan University Wuhan 430072 China Inst. of Elemento-Organic Chemistry Nankai University Tianjin 300071 China

M. Stoll's total synthetic route for dl-muscone was improved. *** was synthesized by PTC method and converted into dehydromuscones through intramolecular aldol reaction by the mixture of zinc chloride and the Grinard ... 详细信息

关键词： An Improved Synthesis of dl-Muscone

Advance in reversible Zn anodes promoted by 2D materials

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Rare Metals 2024年第4期43卷 1350-1369页

作者： Shu-Yuan Lei Jin-xiu Feng Yu-Chao Chen Dong Zheng Wen-Xian liu Wen-Hui Shi fang-fang Wu Xie-Hong Cao School of Materials Science and Engineering Zhejiang University of TechnologyHangzhou310014China Center for Membrane Separation and Water Science and Technology College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China

With the growing energy demand associated with high safety and low-cost requirement,aqueous zinc-ion batteries(AZIBs)have been considered as one of the most promising next-generation ***,some key issues,such as uncontrollable dendrites growth,severe corrosion,hydrogen evolution and side reactions of Zn anodes during charge/discharge process,have hindered its pragmatic ***-dimensional(2D)materials hold advantages of unique physical and chemical properties,large surface areas and abundant active sites,which have been successfully used to overcome the above shortcomings of Zn anodes in recent *** this review,the issues and challenges of Zn anodes are ***,the state-of-the-art progress on Zn anodes modification based on 2D materials such as graphene,2D metal carbides and nitrides(MXenes),2D metal-organic frameworks(MOFs),2D covalent organic frameworks(COFs),2D transition metal compounds and other 2D materials is discussed in ***,the perspectives of employing 2D materials in highly reversible Zn anodes are summarized and discussed.

关键词： 2D materials Aqueous zinc-ion battery Zn anodes Dendrites growth

STUDIES ON THE SYNTHESIS AND ANTITUMOR ACTIVITY OF AMINO ACID ESTER DERIVATIVES OF BENZISOSELENAZOLONE

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Chinese Chemical Letters 1992年第3期3卷 161-162页

作者： xiu fang liu Ying Xin XIAO Guo Jun ZHANG Han Sheng XU Fan Bo ZHENG Department of Chemistry Wuhan UniversityWuhan 430072 Department of Pharmacy Tongji Medical UniversityWuhan 430030

This paper reports a simple method for the synthesis of amino acid ester derivatives of *** anticancer activity is also given.

关键词： DE ACID STUDIES ON THE SYNTHESIS AND ANTITUMOR ACTIVITY OF AMINO ACID ESTER DERIVATIVES OF BENZISOSELENAZOLONE

STUDIES ON CROWN ETHER CYANINE DYES(XI)THE SYNTHESIS OF BENZOTELLURAZOLE CROWN ETHER CYANINE DYES

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Chinese Chemical Letters 1993年第12期4卷 1043-1046页

作者： xiu fang liu Xue Hong LUO Han Sheng XU Department of Chemistry,Wuhan University,Wuhan,430072

Three methods for synthesis of benzotellurazole crown ether(6)are *** cyanine dye(8)can be easily obtained by treating(6) with CH_3I and CH(OEt)_3.

关键词： KBr XI)THE SYNTHESIS OF BENZOTELLURAZOLE CROWN ETHER CYANINE DYES STUDIES ON CROWN ETHER CYANINE DYES

STUDIES ON HETERO-MACROCYCLIC POLYETHER(1).THE SYNTHESIS OF 10-SELENA BENZO-15-CROWN-5

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Chinese Chemical Letters 1991年第3期2卷 195-196页

作者： Han Sheng XU Wei Ping LI and xiu fang liu Departmemt of chemistry,wuhan University,wuhan,430072

The synthesis of a new type of hetero-macrocyclic polyether 2,3-henzo-1,4,7,13-tetraoxa-10-selenacyclopentadeca-2-ene is deseribed.

关键词： THE SYNTHESIS OF 10-SELENA BENZO-15-CROWN-5 STUDIES ON HETERO-MACROCYCLIC POLYETHER