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Chinese Journal of Chemistry 2023年第2期41卷 188-192页

作者： Ren-Rui Xu Xiuyu Fang Xinxin Qi xiao-feng wu Department of Chemistry Key Laboratory of Surface&Interface Science of Polymer Materials of Zhejiang ProvinceZhejiang Sci-Tech UniversityHangzhouZhejiang 310018China Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning 116023China Leibniz-Institut für Katalys e e.V Albert-Einstein-Straβe 29aRostock 18059Germany

A general and straightforward strategy for the synthesis of thioester-substituted oxindoles via a palladium-catalyzed thiocarbonyla-tive cyclization process has been *** sulfonyl chlorides as promising sulfur source,a wide range of thioester-substituted oxindoles were obtained in moderate to high *** aryl and alkyl sulfonyl chlorides were well tolerated,and Mo(CO)6 played a dual role as both a CO source and a reductant in this approach.

关键词： Alkene Carbonylation Oxindoles Palladium Thiocarbonylation Sulfonyl Chlorides Synthetic methods

Palladium-catalyzed carbonylative cyclization of alkene-tethered indoles with phenols or arylboronic acids:Construction of carbonyl-containing indolo[2,1-a]isoquinoline derivatives

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Chinese Chemical Letters 2023年第5期34卷 259-262页

作者： Siqi Wang Jian-Shu Wang Jun Ying xiao-feng wu Department of Chemistry Key Laboratory of Surface&Interface Science of Polymer Materials of Zhejiang ProvinceZhejiang Sci-Tech UniversityHangzhou 310018China Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straβe 29aRostock 18059Germany

A novel palladium-catalyzed carbonylative cyclization of alkene-tethered indoles with phenols or arylboronic acids is described,which provides a facile approach to access indolo[2,1-a]isoquinoline *** method employs benzene-1,3,5-triyl triformate(TFBen)as the CO surrogate for the incorporation of a carbonyl group into indolo[2,1-a]isoquinoline scaffolds,and a variety of carbonyl-containing indolo[2,1-a]isoquinoline derivatives are prepared in good yields.

关键词： Carbonylative cyclization Palladium catalysis Indolo[2 1-a]isoquinolines Alkene-tethered indoles Phenols Arylboronic acids

Palladium-catalyzed cascade Heck-type thiocarbonylation for the synthesis of functionalized thioesters

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Organic Chemistry Frontiers 2022年第5期9卷 1417-1421页

作者： Ren-Rui Xu Wei Wang Xinxin Qi xiao-feng wu Department of Chemistry Zhejiang Sci-Tech UniversityHangzhouZhejiang 310018People’s Republic of China Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences116023 DalianLiaoningChina Leibniz-Institut fur Katalyse e.V. Albert-Einstein-Straße 29aRostock 18059Germany

A palladium-catalyzed cascade Heck-type cyclization and carbonylation reaction has been developed for the synthesis of functionalized *** arylsulfonyl chlorides as odorless and readily available sulfur sources,a variety of thioesters were obtained in moderate to good yields with good functional group *** this system,Mo(CO)_(6) acts as both a convenient CO surrogate and a suitable reductant.

关键词： esters catalyzed synthesis

Shotgun proteomic analysis of Bombyx mori brain： emphasis on regulation of behavior and development of the nervous system

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Insect Science 2016年第1期23卷 15-27页

作者： Guo-Bao Wang Qin Zheng Yun-Wang Shen xiao-feng wu College of Animal Science Zhejiang University Hangzhou China

The insect brain plays crucial roles in the regulation of growth and develop- ment and in all types of behavior. We used sodium dodecyl sulfate polyacrylamide gel electrophoresis and high-performance liquid chromatography - electron spray ionization tandem mass spectrometry （ESI-MS/MS） shotgun to identify the proteome of the silkworm brain, to investigate its protein composition and to understand their biological functions. A total of 2210 proteins with molecular weights in the range of 5.64-1539.82 kDa and isoelectric points in the range of 3.78-12.55 were identified. These proteins were anno- tated according to Gene Ontology Annotation into the categories of molecular function, biological process and cellular component. We characterized two categories of proteins： one includes behavior-related proteins involved in the regulation of behaviors, such as locomotion, reproduction and learning; the other consists of proteins related to the devel- opment or function of the nervous system. The identified proteins were classified into 283 different pathways according to KEGG analysis, including the PI3K-Akt signaling path- way which plays a crucial role in mediating survival signals in a wide range of neuronal cell types. This extensive protein profile provides a basis for further understanding of the physiological functions in the silkworm brain.

关键词： behavior Bombyx mori brain nervous system proteomics shotgun

File format for storage of scalable video

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第5期7卷 706-712页

作者： BAI Gang SUN xiao-yan wu feng YIN Bao-cai LI Shi-peng Beijing Municipal Multimedia and Intelligent Software Key Laboratory Beijing University of Technology Beijing 100022 China Microsoft Research Asia Beijing 100086 China Microsoft Research Asia Beijing 100086 China Beijing Municipal Multimedia and Intelligent Software Key Laboratory Beijing University of Technology Beijing 100022 China Microsoft Research Asia Beijing 100086 China

A file format for storage of scalable video is proposed. A generic model is presented to enable a codec independent description of scalable video stream. The relationships, especially the dependencies, among sub-streams in a scalable video stream are specified sufficiently and effectively in the proposed model. Complying with the presented scalable video stream model, the file format for scalable video is proposed based on ISO Base Media File Format, which is simple and flexible enough to address the demands of scalable video application as well as the non-scalable ones.

关键词： Codes (standards) Data structures Digital storage Internet Mathematical models Multimedia systems

Copper-Catalyzed Carbonylative Synthesis of β-Boryl Amides via Boroamidation of Alkenes

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CCS Chemistry 2021年第4期3卷 2643-2654页

作者： Fu-Peng wu Jens Holz Yang Yuan xiao-feng wu Leibniz-Institut für Katalyse e.V.an der Universität Rostock Rostock 18059 Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023

β-Boryl amide is a class of high value intermediates in organic *** this work,a copper-catalyzed carbonylative boroamidation of olefins toward the synthesize ofβ-boryl amides has been *** new chemical bonds were constructed in this transformation.A wide range ofβ-boryl amides were produced in excellent regioselectivity and good to excellent *** gas can be successfully transformed under the same standard conditions as ***,with the use of a chiral ligand,the first example of enantioselective carbonylative boroamidation of alkenes was *** addition,Piposulfan and Pipobroman,antineoplastic medicines,were prepared by this methodology in a straightforward manner.

关键词： carbonylative boroamidation copper catalyst enantioselective olefins

Copper-Catalyzed Ligand-Controlled Selective Borocarbonylation of α-Substituted Styrenes Toward β-Boryl Aldehydes and Cyclopropyl Boronate Esters

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CCS Chemistry 2023年第8期5卷 1866-1875页

作者： Yang Yuan Youcan Zhang Jian-Xing Xu xiao-feng wu Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023 Liaoning Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29aRostock 18059

We report a copper-catalyzed ligand-controlled selective carbonylative borofunctionalization ofα-substituted *** reaction provides a general and versatile procedure to synthesize a variety of synthetically usefulβ-boryl quaternary aldehydes and cyclopropyl boronate esters bearing a quaternary carbon *** NHC(IMes=1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene)as the ligand,the carbene intermediate reacts with O-H bond of alcohol while the carbene intermediate would undergo C-H bond insertion when using phosphine ligand[1,2-bis(diphenylphospino)ethane]as the *** of a carbene intermediate has been proposed as the key step for this transformation.

关键词： borocarbonylation copper catalysis carbene insertion ligand-controlled α-substituted styrenes

Immobilization of foreign protein into polyhedra of Bombyx mori nucleopolyhedrovirus(BmNPV)

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第2期13卷 111-117页

作者： Xing-wei XIANG Rui YANG Lin CHEN xiao-long HU Shao-fang YU Cui-ping CAO xiao-feng wu College of Animal Sciences Zhejiang UniversityHangzhou 310058China

In the late phase of Bombyx mori nucleopolyhedrovirus(BmNPV)infection,a large amount of polyhedra appear in the infected cell nucleolus,these polyhedra being dense protein crystals protecting the incorporated virions from the harsh *** investigate whether the foreign protein could be immobilized into the polyhedra of BmNPV,two recombinant baculoviruses were generated by a novel BmNPV polyhedrin-plus(polh +)Bac-to-Bac system,designated as vBmBac(polh +)-enhanced green fluorescent protein(EGFP)and vBmBac(polh +)-LacZ,which can express the polyhedrin and foreign protein *** microscopy analysis showed that all viruses produced polyhedra of normal *** fluorescence can be apparently detected on the surface of the vBmBac(polh +)-EGFP polyhedra,but not the BmNPV *** analysis and anti-desiccation testing confirmed that EGFP was embedded in the *** expected,the vBmBac(polh +)-LacZ polyhedra contained an amount of LacZ and had a higherβ-galactosidase *** dodecyl sulfate polyacrylamide gel electrophoresis(SDS-PAGE)and Western blotting were also performed to verify if the foreign proteins were immobilized into *** study provides a new inspiration for efficient preservation of useful proteins and development of new pesticides with toxic proteins.

关键词： Bombyx mori nucleopolyhedrovirus Polyhedra Foreign protein Protein immobilization

PSO Optimal Control of Model-free Adaptive Control for PVC Polymerization Process

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International Journal of Automation and computing 2018年第4期15卷 482-491页

作者： Shu-Zhi Gao xiao-feng wu Liang-Liang Luan Jie-Sheng Wang Gui-Cheng Wang School of Electronic and Information Engineering Shenyang University of Chemical Technology University of Science and Technology Liaoning National Financial Security and System Equipment Engineering Research Center

Polyvinyl chloride （PVC） polymerizing process is a typical complicated industrial process with the characteristics of large inertia, big time delay and nonlinearity. Firstly, for the general nonlinear and discrete time system, a design scheme of model-free adaptive （MFA） controller is given. Then, particle swarm optimization （PSO） algorithm is applied to optimizing and setting the key parameters for controller tuning. After that, the MFA controller is used to control the system of polymerizing temperature. Finally, simulation results are given to show that the MAC strategy based on PSO obtains a good controlling performance index.

关键词： Polyvinyl chloride(PVC) polymerization temperature model-free adaptive control particle swarm optimization(PSO)algorithm.

Simple and effective method for treating severe adult skeletal class II malocclusion: A case report

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World Journal of Orthopedics 2024年第10期15卷 965-972页

作者： Li-Li Xie Dan-Yang Chu xiao-feng wu Department of Stomatology Hebei General HospitalShijiazhuang 050057Hebei ProvinceChina Chengde Medical University Chengde 067000Hebei ProvinceChina

BACKGROUND Severe skeletal class II malocclusion is the indication for combined orthodontic and orthognathic *** SUMMARY A woman with a chief complaint of a protruding chin and an inability to close her lips requested orthodontic *** treatment plan consisted of extracting the right upper third molar,right lower third molar,left lower second molar,and left upper third molar and moving the maxillary dentition distally using a convenient method involving microimplant nail anchors,push springs,long arm traction hooks,and elastic traction *** 52 months of treatment,her overbite and overjet were normal,and her facial profile was *** This method can be used for distal movement of the maxillary dentition and to correct severe skeletal class II malocclusion in adults.

关键词： Skeletal class II malocclusion Maxillary dentition Microimplant nail Simple and effective method Case report