检索结果-南通市图书馆

A Novel Route to synthesize N,N-Dimethyl Arylmethylamines from Aryl Aldehydes, Hexamethylenetetramine and Hydrogen

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2020年第8期38卷 842-846页

作者： Zhengang Ke Bo Yu Yunyan Wu Yanfei Zhao Peng Yang Shien Guo Zhimin Liu Beijing National Laboratory for Molecular Sciences Key Laboratory of ColloidInterface and ThermodynamicsCAS Research/Education Centre for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Physical Science Laboratory Huairou National Comprehensive Science CenterBeijing 101407China

Developing simple and green routes to access valuable chemicals is of ***,we present a green and novel route to synthesize N,N-dimethyl arylmethylamines(DAMAs)from hexamethylenetetramine(HMTA)and aryl aldehydes in the presence of hydrogen,and a series of DAMAs can be obtained in good *** approach opens the precedent for HMTA as N,N-dimethylamine source to synthesize chemicals with N,N-dimethylamine group,which has promising applications for N-containing chemicals synthesis.

关键词： synthesis. amines synthesize

2-20 Attempt to synthesize a New Neutron-de cient Isotope 224Np

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

IMP & HIRFL Annual Report 2014年第1期 56-56页

作者： Huang Tianheng Liu Zhong Ding Bing Sun Mingdao 不详

Nuclei in the light actinide region with Z 92，N 134 are predicted to be candidates for shape coexistence[1],some nuclei in this region are also predicted to have stable octupole deformation[2]. Actinide nuclei with N=134have been produced up to plutonium (228Pu), and the lightest plutonium isotope and neptunium isotope discoveredso far are 228Pu and 225Np respectively. A campaign has been started to investigate the nuclei in this region. Thereaction 20Ne + 209Bi was used to produce 224Np (N=131) in fusion-evaporation reaction as the first step.

关键词： Neutron-deficient Isotope synthesize

Antibacterial screening of silver nanoparticles synthesized by marine micro algae

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2010年第10期3卷 797-799页

作者： D Devina Merin S Prakash B Valentine Bhimba Department of Biotechnology Udaya School of EngineeringUdaya NagarVellamodiAmmandivillai post-629204Kanyakumari DistrictTamil NaduIndia Department of Biotechnology Sathyabama UniversityChennai-600 119TamilnaduIndia

Objective:To explore the biosynthesis of silver nanoparticles synthesized by marine microalgae. Methods:Marine microalgae was collected from Central Marine Fisheries Research Institute (CMFRI,tuticorin) and cultured in the *** nanoparticles synthesis were observed in normal and microwave irradiated microalgae and screened against human pathogens for the presence of ***:The presence of silver nanoparticle was confirmed by UV-Visible spectroscopy at 420 nm by the presence of plasmon *** confirmation was done by scanning electron microscope(SEM).Conclusions:These results not only provide a base for further research but are useful for drug development in the present and future.

关键词： Silver nanoparticle Marine microalgae Screening antimicrobials synthesize

A small,polyphyletic group of Firmicutes synthesizes trimethylamine from L-carnitine

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

mLife 2023年第3期2卷 267-271页

作者： Marius Vital Ylenia Heinrich-Sanchez Hannover Medical School Institute for Medical Microbiology and Hospital EpidemiologyHannoverGermany

Impact statement Gut microbiota-derived trimethylamine(TMA)is associated with cardiometabolic disorders and exemplifies a microbial involvement in the etiology of emerging,noncommunicable diseases,the leading causes of death *** bio-chemical pathways taking dietary compounds as intake have been described with distinct taxa involved that are all present at low relative abundances.A recently discovered pathway is now considered to be the main route for TMA synthesis from L-carnitine involvingγ-butyrobetaine as an intermediate *** comprehensive(meta)genomic screening of publicly available data,namely,genomes of the UHGG catalog(n>200,000)and 10 metagenomic(transcriptomic)data sets,we revealed bacteria synthesizing TMA via this pathway and specified their *** will contribute to stratification of individuals based on their gut microbiota's potential to synthesize TMA and might aid in the development of strategies restricting TMA formation.

关键词： product. synthesize statement

Nanogridarene:A Rising Nanomolecular Integration Platform of Organic Intelligence

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2020年第1期38卷 103-105页

作者： Xinmiao Xie Ying Wei Dongqing Lin Chunxiao Zhong Linghai Xie Wei Huang Centre for Molecular Systems and Organic Devices(CMSOD) Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for BiosensorsInstitute of Advanced Materials(IAM)Nanjing University of Posts&Telecommunications9 Wenyuan RoadNanjingJiangsu 210023China Shaanxi Institute of Flexible Electronics(SIFE) Northwestern Polytechnical University(NPU)127 West Youyi RoadXi'anShaanxi 710072China

In the background of organic electronics,nanogridarenes with the criteria of well-defined edge and extendable vertexes were discovered toward chemical intellibots in ***,Friedel-Crafts Gridization(FCG)as the molecular installing technology(MIT)will be highlighted to synthesize various monogrids,multigrids and polygrids that would be potential cornerstone of covalent window,molecular integration and circuit as well as organic robots.

关键词： corners vertex synthesize

Preparation of Functional Magnetic Nanoparticles and its Application in Diagnostic Analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2005年第8期16卷 1059-1062页

作者： Qiong CHENG Tu Zhi PENG Ai Li LIU Department of Chemistry Xixi CampusZhejiang UniversityHangzhou 310028 College of biological and Chemical Engineering Jiaxing Coliege Jiaxing 314001

The magnetic nanoparticles modified with carboxyl functional group were synthesized and characterized. These nanoparticles covalently bound with hepatitis B surface antibody（HBsAb）, were used to detect hepatitis B surface antigen （HBsAg） in immunovoltammetry. The detection limit was found to be 0.06 ng/mL, which is much higher than that of enzyme-linked immunosorbent assay （ELISA） used in clinical analysis.

关键词： Functional magnetic nanoparficles synthesize characterization immunoassay electro chemical detection

Covalent Functionalization of Carbon Nanotube by Tetrasubtituted Amino Manganese Phthalocyanine

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2004年第6期15卷 717-720页

作者： ZhengLongYANG HongZhengCHEN LeiCAO HartYinLI MangWANG DepartmentofPolymerScience＆Engineering StateKeyLaboratoryofSiliconMaterialsZhejiangUniversityHangzhou310027

The multiwall carbon nanotube (MWCNT) bonded to 2, 9, 16, 23-tetraamino manganese phthalocyanine (TAMnPc) was obtained by covalent functionalization, and its chemical structure was characterized by TEM. The photoconductivity of single-layered photoreceptors, where MWCNT bonded by TAMnPc (MWCNT-b-TAMnPc) served as the charge generation material (CGM), was also studied.

关键词： Multiwall carbon nanotube tetrasubstituted amino manganese phthalocyanine synthesize covalent functionalization photoconductivity.

Synthesis,structure and properties of three novel transition-metal-containing tantalum-phosphate clusters

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2022年第10期33卷 4675-4678页

作者： Xue Li Hui Zhao Yuyan Li Yuanyuan Yang Mingyang Zhang Suyi Liu Pengtao Ma Jingping Wang Jingyang Niu Henan Key Laboratory of Polyxometalate Chemistry College of Chemistry and Chemical EngineeringHenan UniversityKaifeng 475004China

Peroxide ligation of aqueous metal-oxo clusters provides rich speciation and structural ***,three novel transition-metal derivatives of polyoxometalate anions,[Ni_(2)(H_(2)O)_(10){P_(4)Ta_(6)(O_(2))_(6)O_(24)}]^(6-)(1a),[Zn(H_(2)O)_(4){P_(4)Ta_(6)(O_(2))_(6)O_(24)}]^(8-)(2a)and[Cd(H_(2)O)_(4){P_(4)Ta_(6)(O_(2))_(6)O_(24)}]^(8-)(3a),have been successfully synthesized by adopting a one-pot reaction *** of these hexatantalates are built from a new-type phosphorus-incorporated *** investigated the solution behaviors,and the peak assignments of the MS spectra indicated some degree of stability of them in ***,the proton-conducting ability of compound 1a was also explored and it has shown well conductivity at high relative humidities,with conductivity achieved 1.22×10^(-3) S/cm(85℃,90%RH).

关键词： Polyoxotantalates Transition-metal synthesize Structure Proton-conduction

The Reductive Addition Reaction of Substituted 2-Chloromethyl-1,3,4-oxadiazole to Aldehydes and Ketones Promoted by Samarium Diiodide

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2005年第12期16卷 1566-1568页

作者： Xiao Liang XU Wei Min ZHU Yong Min ZHANG Department of Chemistry Zhejiang University Xixi Campus Hangzhou 310028 State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032

1-（β-Hydroxyalkyl）-l,3,4-oxadiazole derivatives were synthesized via reductive addition reactions of 2-chloromethyl-l,3,4-oxadiazole with carbonyl compounds under mild conditions promoted by SmI2.

关键词： Reductive addition samarium diiodide 1-(β-hydroxyalkyl)-1 3 4-oxadiazole deriva-tives synthesize