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Uranyl photocatalysis:precisely controlled oxidation of sulfides with ground-state oxygen

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Science China Chemistry 2020年第3期63卷 291-293页

作者： Wei-Min He ying-wu lin Dong-Hong Yu Department of Chemistry Hunan University of Science and EngineeringYongzhou 425100China Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation Changsha University of Science and TechnologyChangsha 410114China School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China Department of Chemistry and Bioscience Aalborg UniversityDK-9220 AalborgEastDenmark

Sulfur-containing organic compounds such as sulfides,sulfoxides and sulfones,have played significant roles in the fields of organic synthesis,pharmaceuticals,and *** selective oxidation of the parent sulfides has been... 详细信息

关键词： Uranyl oxidation ground-state oxygen

Dynamic consequences of mutating the typical HPGG motif of apocytochrome b_5 revealed by computer simulation

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Chinese Chemical Letters 2009年第5期20卷 631-634页

作者： ying wu lin Tian Lei ying Li Fu Liao School of Chemistry and Chemical Engineering University of South China Hengyang 421001 China Department of Chemistry University of Illinois at Urbana-Champaign Urbana IL 61801 USA Chemical Biology Lab Department of Chemistry Fudan University Shanghai 200433 China

Apocytochrome b5 with a typical heme-binding motif of HPGG, and its variants with mutated motifs, GPGG, GPGH, HVGG, and HPGP, have been subjected to molecular dynamics simulation. Comparison of the dynamic consequences has revealed the crucial role of HPGG in assembling the heine group of cytochrome b5 and in modulating protein structure, property and function.

关键词： Apocytochrome b5 Heme-binding motif HPGG Molecular dynamics simulation

Metal-free synthesis of 1,2,3-benzotriazines

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Chinese Chemical Letters 2020年第12期31卷 2989-2990页

作者： Jin-Yang Chen ying-wu lin Wei-Min He College of Chemistry and Chemical Engineering Yangtze Normal UniversityChongqing 408000China Hunant Provinicial Key Laboratory of Materials Protection for Flectric Power and Transportation Cchangsha Univerity of Science and TecmologyChangsha 410114China School of Chemistry and Chemical Engineering Hunan University of Science and TechnologyXiangtan 411201China School of Chemistry and Chermical Engineering University of South ChinaHengyang 421001China

The recent molecular iodine catalyzed[1,2]-rearrangement of aryl amines and 3-amino-1 H-indazolesfor the synthesis of 1,2,3-benzotriazines is highlighted.

关键词： Iodine Metal-free Rearrangement reaction 1,2,3-Benzotriazines

Probing the weak interactions between amino acids and carbon monoxide

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Chinese Chemical Letters 2008年第1期19卷 119-122页

作者： ying wu lin Chang Ming Nie Li Fu Liao College of Chemistry and Chemical Engineering University of South China Hengyang 421001 China

The relatively weak interactions between some non-charged amino acids with CO were investigated theoretically by using density functional theory （DFT） method. The stretching frequency of CO correlates well with its bond length followed the Badger＇s rule, and the correlation between binding energy and Mulliken charge partition of CO was also investigated for the first time. 2007 ying wu lin. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Amino acid CO Interaction Orientation Binding energy

The concept of dual roles design in clean organic preparation

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Chinese Chemical Letters 2019年第12期30卷 2132-2138页

作者： Zhong Cao Qin Zhu ying-wu lin Wei-Min He Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation Changsha University of Science and TechnologyChangsha 410114China School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China Department of Chemistry Hunan University of Science and TechnologyXiangtan 411201China

Herein we summarized some clean preparation examples to emphasize the concept of dual roles design(or named as "two birds one stone strategy") in green and sustainable *** those examples,the reactants and/or solvent play dual roles rendering a cleaner organic preparation ***,both the chemical waste and manufacturing cost could be reduced.

关键词： Green chemistry Dual role Quinoline N-oxides Allynes Water

Theoretical investigation of uranium(Ⅳ) coordinated with N,N'-bis(3-allyl salicylidene)-o-phenylenediamine

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Nuclear Science and Techniques 2016年第5期27卷 247-254页

作者： Wen-Bo Lan Sha Gao ying-wu lin Guo-Wen Peng Chang-Ming Nie School of Chemistry and Chemical Engineering University of South China Hengyang 421001 China

We used density functional theory calculations at the B3LYP/6-311G** level for a theoretical study on the complex formed when uranium(Ⅳ) coordinates with N,N'- bis(3-allyl salicylidene)-o-phenylenediamine(BASPDA),i.e.,U(BASPDA)_*** results indicated that the coordination complex of U(BASPDA)2 could form two different structures with a ratio of 1:*** was a parallel dislocation structure(PDS-U),in which the two BASPDAs' middle benzene rings adopted a parallel dislocation with an angle of 56.64°,and the other was a staggered finger "+" structure(SFS-U),in which the two BASPDAs employed the staggered finger "+" *** binding energies,charge distribution,spectral properties,thermodynamic properties,molecular orbitals and Wiberg bond indices for both PDS-U and SFS-U were calculated and compared with each other.

关键词：邻苯二胺烯醛调理位错结构铀热力学性质密度函数电荷分布

Unusual peroxidase activity of a myoglobin mutant with two distal histidines

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Chinese Chemical Letters 2012年第6期23卷 741-744页

作者： Wei Wei Guo Dun Wan Li Fu Liao ying wu lin School of Chemistry and Chemical Engineering University of South China Hengyang 421001 China State Key Laboratory of Coordination Chemistry Nanjing University Nanjing 210093 China

By retaining the native distal His64 in sperm whale myoglobin （Mb）, a second distal histidine was engineered in Mb by mutating Leu29 to His29. The resultant mutant of L29H Mb exhibits an unusual enhanced peroxidase activity with a positive cooperativity in comparison to that of wild type Mb. The new enzyme with two cooperative distal histidines has not been found in native peroxidase, which emohasizes a creation of the rational nmt^in doclan

关键词： Heme protein Myoglobin Protein design Peroxidase Cooperativity

1,2-Diethoxyethane catalyzed oxidative cleavage of gem-disubstituted aromatic alkenes to ketones under minimal solvent conditions

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Chinese Chemical Letters 2020年第7期31卷 1868-1872页

作者： Kai-Jian Liu Ji-Hui Deng Tang-Yu Zeng Xin-Jie Chen ying Huang Zhong Cao ying-wu lin Wei-Min He Department of Chemistry Hunan University of Science and EngineeringYongzhou 425100China Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation Changsha University of Science and Technology.Changsha 410114China School of Chemistry and Chemical Engineering Hunan University of Science and TechnologyXiangtan 411201China School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China

Aerobic oxidation using pure dioxygen gas as the oxidant has attracted much attention,but its application in synthetic chemistry has been significantly hampered by the complexity of catalytic system and potential risk of high-energy dioxygen *** employing 1,2-diethoxyethane as a catalyst and ambient air as an oxidant,an efficient protocol for the construction of various aryl-alkyl and diaryl ketones through oxidative cleavage of gem-disubstituted aromatic alkenes under minimal solvent conditions has been achieved.

关键词： Ketone Oxidation Ambient air Oxidative cleavage

DNA methyltransferase 3B promoter polymorphism and its susceptibility to primary hepatocellular carcinoma in the Chinese Han nationality population:A case-control study

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World Journal of Gastroenterology 2007年第45期13卷 6082-6086页

作者： ying wu Ju-Sheng lin Institute of Liver Diseases TongjiHospital Tongji Medical College Huazhong University ofScience and Technology Wuhan 430030 Hubei Province China

AIM： To investigate the correlation between C/T single nucleotide polymorphism （SNP） in the promoter of the DNA methyltransferase 3B （D/VMT3B） gene and risk for development and progression of primary hepatocellular carcinoma （HCC）. METHODS： One hundred case subjects were selected consecutively from Tongji Hospital （wuhan, China）. from March to November 2006. They did not receive radiotherapy or chemotherapy for newly diagnosed and histopathologically confirmed HCC. One hundred and forty control subjects having no history of cancerous or genetic diseases were healthy volunteers to wuhan Blood Center in the same period. Frequency was matched for sex, age, alcohol consumption and cigarette smoking status of the case subjects. C/T polymorphism of the DNMT3B promoter was analyzed using polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） and sequencing analysis. The association between genotypes of DNMT3B and clinicopathological parameters among cases was also studied. RESULTS： The CC genotype HCC patients and controls. was not detected in both In control subjects, the frequency of TT and CT genotypes was 99.3% and 0.7% respectively, and that of T and C alleles was 99.6% and 0.4% respectively. The frequency of CT genotype was higher in HCC （3.0%）. The frequency of T and C alleles was 98.5% and 1.5% respectively. However, the genotype and allelotype distribution in HCC patients was not significantly different from that in controls. CONCLUSION： C/T polymorphism is not associated with the increased risk of HCC. DNMT3B genetic polymorphism is variable in different races, ethnic groups or geographic areas. Further study is needed to clarify the role of DNMT3B SNP in the development of HCCamong other populations.

关键词： DNA methyltransferase Single nucleotidepolymorphism Susceptibility Primary hepatocellularcarcinoma