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On screen， they’re Earth’s mightiest heroes. But in Hollywood， they were has-beens and never-weres. That is， until Marvel......
During July 29 to 31,2015,the final evaluation stage of the 17th“FOSECO Cup”for the best foundry papers of 2014,organi......
The influence of the lone pair of electrons in thallium complexes is analyzed using the bond valence sum method.Bond len......
Sulfamic acid as a cost-effective and recyclable solid acid catalyst for Friedel-Crafts alkylation o
Sulfamic acid was proved to be a cost-effective and recyclable catalyst for Friedel-Crafts type reaction of indole with......
Highly efficient nickel/phosphine catalyzed cross-couplings of diarylborinic acids with aryl tosylat
4-Methoxy-4′-methylbiphenyl(3aa) [1] MeO White solid(0.324 g, 82% from aryl tosylate, 0.356 g, 90% from aryl sulfamate)......
Synthesis, structure, and catalytic activity of rare-earth metal amides with a neutral pyrrolyl-func
1 Representation of complexes and selected bond distances and bond angles Figure S1 Structure of complex 4. Hydrogen ato......
10 mol% CuI combined with the DMEDA ligand can efficiently catalyze the N-arylation of 2-arylindoles with aryl iodides a......
An efficient palladium-catalyzed copper- and amine-free Sonogashira coupling reaction of aryl bromides and chlorides was......
Selective hydrogenation of unprotected indole to indoline over N-doped carbon supported palladium ca
Mesoporous N-doped carbon supported palladium catalyst Pd@CN0.132 was able to efficiently catalyze unprotected indole to......
We report a practical and highly efficient protocol for the arylation of pyridine N-oxides with arylboronic acid through......
Cu(Ⅱ)-catalyzed domino reaction of 2-halobenzamide and arylmethanamine to construct 2-aryl quinazoli
A novel method for achieving a copper(II)-catalyzed domino reaction for the construction of 2-aryl quinazolinones,withou......
Twelve novel dithiocarbamates containing 1,2,3-trizaoles group were prepared via one step starting from organic halides,......
Reactions of isatins with 5-aminopyrazole afforded the 3-(5-aminopyrazol-4-yl)-3-hydroxy-2-oxindolines in good to excell......
Tetrazole-1-acetic acid as a ligand for copper-catalyzed N-arylation of imidazoles with aryl iodides
Tetrazole-1-acetic acid was found to serve as a superior ligand for CuI-catalyzed N-arylation of imidazoles with aryl io......
SYNTHESES,CHARACTERIZATION AND ETHYLENE POLYMERIZATION OF HALF-SANDWICH GROUP IV METAL COMPLEXES WIT
A series of half-sandwich group IV metal complexes with tridentate monoanionic phenoxy-imine arylsulfide [O NS] ligand [......
A highly enantioselective allylic substitution reaction of anthrones with aromatic or aliphatic allyl carbonates was rea......
A new and convenient procedure is developed for the preparation of N-sulfonylbenzotriazoles from sodium sulfinates and b......
A manganese-catalyzed bicyclic annulation of imines with α,β-unsaturated esters via C–H activation is described, whic......
Practical BF3Et2O catalyzed reactions between indoles and a series of carbonyl compounds at room temperature are describ......
本文借助语料库工具Sentence Concordancer尝试解决中学英语教学中词组搭配疑难的问题。本研究的结果可能对中学英语教师和学生有......
An iterative learning control scheme is developed to the traffic density control in a macroscopic level freeway environm......
1.A fennec fox walks against the wind in Morocco.The fennec,or desert fox,is a small nocturnal fox found in the Sahara D......
This paper develops a new algorithm based on the Projected Gradient Algorithm (PGA) for the design of FIR digital filter......
随着经济全球化的加快,英语已成为会计人员必须掌握的一门语言工具。为了有助于读者朋友对会计英语的系统掌握,我们开设了《会计英......
In 17 November,2012the State Cultural Relics Bureau announced new entries to the Tentative List of World Heritage Sites ......
I.IntroductionInrecentyearswiththedevelopmentofnewscienceandadvancedtechnology,especiallybecauseoftheappearanceofnewly-l......
Overthepastcenturyandmore,throughthejointeffortsofChineseandforeigntranslators,alargenumberofancient,modern,andcontempor......
A new approach to select an optimal set of test points is proposed. The described method uses fault-wise table and multi......
A New Approach to 2,3-Dihydro-1H-1,5-Benzodiazepines from the Reaction of o-Nitrophenylazide with α,
o-Nitrophenylazide was reduced by SmI2 in anhydrous THF at room temperature to produce active intermediate 2 (samarium a......
The addition of a suitable amount of PPh3 to PdCl2 or PdCl2(PhCN)2 in situ can considerably increase the catalytic activ......
The particles of ferric aluminum magnesium hydrotalcite-like compounds (Fe-Al-Mg_HTlc) were synthesized by co-precipitat......
The Convention for the Protection of World Cultural and Natural Heritage signed in 1972 by the member countries of UNESC......
In the Netherlands the annual fresh flower consumption is 150items per person,in France it is80,in the US it is30,in......
In April 2001,the Government launched the West Kowloon Reclamation Concept Plan Competition to invite conceptual proposa......
“2010ADA国际水草造景大赛”总评ADA国际水草造景比赛从21世纪初开始举办,本年度的比赛恰巧参赛者来自的国家数目不断稳定增加,本......
On June 5 to 8, 2012, the final evaluation activity of the 14th “FOSECO Cup” for Excellent Foundry Papers (2011), orga......
On August 8 to 10,2014,the final evaluation stage of the 16th“FOSECO Cup”for excellent foundry papers(2013),organized ......
BACKGROUND: The long-term neurotoxicity of 3,4-methylenedioxymethamphetamine (MDMA) mainly caused by repeated exposure t......
An on line blind source separation (BSS) algorithm is presented in this paper under the assumption that sources are temp......
Routing lookup is an important technology for IP transmission network and IP-based packet switching network. Although th......
Crimean-Congo hemorrhagic fever (CCHF) is a severe illness with high fatality.Cases are reported in several countries in......
The sharp expansion of the FIB table rapidly aggravates the hardware cost of Line cards(LCs) in the high-performance dis......
SDN provides an approach to create desired network forwarding plane by programming applications.For a large-scale SDN ne......
Routh stability test is covered in almost all undergraduate control texts. It determines the stability or, a litde beyon......
Objective:To study the behavioral effects of semi purified fraction prepared from the stem bark of Erythrina velutina on......
Copper and iron play important roles in a variety of biological processes, especiallywhen being chelated with proteins. ......
