搜索结果: 46-60 共查到“有机合成化学 Synthesis”相关记录372条 . 查询时间(0.759 秒)
Application of FAM ligands in the metal-promoted catalytic enantioselective synthesis of organic compounds
the metal-promoted catalytic synthesis of organic compounds
2010/4/8
Novel ferrocenyl substituted aziridinyl methanol (FAM) ligands were synthesized and successfully used in metal-promoted catalytic enantioselective azomethine ylide cycloadditions, diethylzinc addition...
The synthesis, characterization and energy transfer efficiency of a dithienylpyrrole and BODIPY Based Donor-Acceptor System
Fluorescence Resonance Energy Transfer Donor-Acceptor System Dithienylpyrrole BODIPY
2010/4/8
A dithienylpyrrole-BODIPY based donor-acceptor system with 1,4-phenylene spacer as a model system for energy transfer was designed and synthesized. Absorption and emission spectra have revealed an eff...
Synthesis and Antimicrobial Activity of Dinaphtho[2,1-b]furan-2-yl-methanone and Their Oxime Derivatives
Antimicrobial activity Naphtho[2,1-b]furan Benzofuran Ketoxime
2010/4/9
The reaction of 2-hydroxy-1-naphthaldehyde with 1,3-dichloroacetone and potassium carbonate was used to prepare dinaphtho[2,1-b]furan-2-yl-methanone (1) as starting reagents. In order to obtain dinaph...
Synthesis and evaluation of phenytoin derivatives as anticonvulsant agents
Phenytoin hydantoin anticonvulsant activity
2010/4/9
2,5-Dioxo-4,4-diphenylimidazolidine-1-carboxylic acid (2) was reacted with methyl ester of different amino acids (1a-c) and substituted benzhydrols (3a-b) in pyridine and in the presence of N,N dicycl...
Synthesis and Biological Activity of 4-(4-Hydroxybenzylidene)-2- (substituted styryl) oxazol-5-ones and Their o-glucosides
Oxazolone a -acetobromoglucose decetylation o-glucosides antimicrobial antifungal activity
2010/4/9
The 4-(4-hydroxybenzylidene)-2-methyl oxazol-5-ones 1 were treated with various aldehydes in the presence of acetic acid to form 4-(4-hydroxybenzylidene)-2-(substituted styryl) oxazol-5-ones 2a-i, whi...
Synthesis of 5-Arylamino-1H (2H)-tetrazoles and 5-Amino-1-aryl-1H-tetrazoles from Secondary Arylcyanamides in Glacial Acetic Acid: A Simple and Efficient Method
5-Arylamino-1H (2H)-tetrazoles 5-amino-1-aryl-1H-tetrazoles arylcyanamides guanyl azides glacial acetic acid
2010/4/9
A simple and efficient method for the preparation of 5-arylamino-1H (2H)-tetrazoles (3a-i) and 5-amino-1-ary-1H-tetrazoles (4a-i), with excellent yields and high purity, from secondary arylcyanamides ...
Synthesis, Spectral Characterization, and Antimicrobial Activity of Arsenic(III) and Bismuth(III) tri[3(2´-hydroxyphenyl)-5-(4-subsituted phenyl)pyrazolinates]
Arsenic Bismuth Pyrazolinates Antimicrobial activity
2010/4/9
Arsenic(III) tripyrazolinates and bismuth(III) tripyrazolinates of the type M(C15H12N2OX)3 [where C15H12N2OX = 3(2'-hydroxyphenyl)-5-(4-substituted phenyl)pyrazoline] have been synthesized by the reac...
Rapid Synthesis of New Poly(amide-imide)s Based on N-(4-Carboxy phenyl) trimellitimide and Hydantoin Derivatives under Microwave Irradiation
Thermally stable polymers icrowave irradiation Poly (amide-imide Hydantoin derivatives
2010/4/9
Six new poly (amide-imide)s (6a-f) were prepared under microwave irradiation by polycondensation reaction of diacid chloride (4) with 6 different derivatives of hydantoins (5a-f) using O-cresol as a m...
A Convenient Synthesis of 2-Azido and 2-Thiocyanato-2,3-Unsaturated Cyclic Ketones
Azides thiocyanates enols deoxygenation 1,2-cyclic diketones
2010/4/9
2-Azido and 2-thiocyanato-2,3-unsaturated ketones were synthesized by utilizing functionalization of 5- or 6-membered cycloalkane-1,2-diones, namely diosphenols, with dimethylthiocarbomoyl chloride, w...
Synthesis and Leishmanicidal Evaluation of Novel 4-Substituted-2,2-Dimethyl-7-(prop-2-ynyloxy)Chromenes
Synthesis chromene leishmanicidal activity
2010/4/9
Substituted 4-chromenes were synthesized via the Grignard coupling reaction of various substituted phenyl- and benzylmagnesium chlorides with 2,2-dimethyl-7-(prop-2-ynyloxy)chroman-4-one (1) in relati...
CTAB-Assisted Hydrothermal Synthesis and Magnetic Characterization of NixCo1-xFe2O4 Nanoparticles (x = 0.0, 0.6, 1.0)
Magnetic materials Spinels XRD Coercivity Hydrothermal synthesis
2010/4/9
Nickel ferrite, NixCo1-xFe2O4, NPs (where x = 0.0, 0.6 and 1.0) were successfully synthesized by a rapid and reproducible CTAB-assisted hydrothermal route. The influence of different hydrolyzing agent...
Synthesis and Cloning of a Small Bacillus Pheromone Gene (ComXRO-B-2) by Primer-Dimer Formation with PCR
Bacillus mojavensis RO-B-2 ComX pheromone gene TA cloning primer-dimer PCR
2010/4/16
ComX pheromone is the major extracellular signaling peptide stimulating transformation in response to high cell density in Bacillus species. In this study, Bacillus mojavensis ComX(RO-B-2) pheromone g...
Synthesis and Selective Extractant Properties of a Calixarene Thioether Derivative and its Oligomeric Analogue
Calix, calixarene oligomeric calixarene liquid-liquid extraction metal cation
2010/4/16
Herein we report the synthesis of a novel calix[4]arene thioether derivative (4) and its oligomeric analogue (5). The liquid-liquid extraction properties of these compounds towards the selected metal ...
Synthesis and Antifungal Activity of Some Novel N-(4-Phenyl-3-aroylthiazol-2(3H)-ylidene) Substituted Benzamides
N-(4-phenyl-3-aroylthiazol-2(3H)-ylidene) substituted benzamides antifungal
2010/4/16
Variously substituted N-(4-phenyl-3-aroylthiazol-2(3H)-ylidene)benzamides (2a-t) were prepared by base-catalyzed cyclization of corresponding 1-aroyl-3-aryl thioureas with acetophenone in the presence...
Novel Analogues of 2-Pyrazoline: Synthesis, Characterization, and Antimycobacterial Evaluation
2-Pyrazolines Sodium salts of N,N-disubstituted dithiocarbamoic acids Antimycobacterial activity
2010/4/16
Fourteen new 1-[(N,N-disubstitutedthiocarbamoylthio)acetyl]- 3-(2-thienyl)-5-aryl-2-pyrazoline derivatives were synthesized by reacting 1-(chloroacetyl)-3-(2-thienyl)-5-aryl-2-pyrazolines and appropri...