دانلود مقالات ISI درباره Enantioselectivity + ترجمه فارسی

Extractive separation of amino acid enantiomers with co-extractants of tartaric acid derivative and Aliquat-336

Keywords: Chiral separation co-extractant; Amino acids; Distribution ratio; Enantioselectivity; Aliquat-336

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2007 سفارش ترجمه

Direct and indirect high-performance liquid chromatography enantioseparation of trans-4-hydroxy-2-nonenoic acid

Keywords: Chiral separation; Chiral derivatization; LC; Enantioselectivity; trans-4-Hydroxy-2-nonenoic acid; trans-4-Hydroxy-2-nonenal; Chiralpak AD-RH; (1S,2S)-(+)-2-Amino-1-(4-nitrophenyl)-1,3-propanediol

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2007 سفارش ترجمه

The study on efficient hydrolases immobilization for the kinetic resolution of the α-acetoxyamides

Keywords: Enzymatic kinetic resolution; Passerini reaction; Lipases; Enantioselectivity; Immobilization

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2007 سفارش ترجمه

The influence of fluorine on the asymmetric reduction of fluoromethyl ketones

Keywords: Fluoroketones; Chloroketones; Asymmetric reduction; DIP-Chloride™; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2007 سفارش ترجمه

Immobilized chiral diamino Ru complex as catalyst for chemo- and enantioselective hydrogenation

Keywords: Ruthenium(II) complex; Functionalized SBA-15; Chiral cyclohexyldiamine; Immobilization; Hydrogenation; Prochiral ketones; α,β-Unsaturated ketones; Imines; Enantioselectivity; Chemoselectivity

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2007 سفارش ترجمه

Cloning of an epoxide hydrolase-encoding gene from Aspergillus niger M200, overexpression in E. coli, and modification of activity and enantioselectivity of the enzyme by protein engineering

Keywords: Protein engineering; Saturation mutagenesis; Enantioselectivity; Heterologous expression

دانلود رایگان متن کامل مقاله ISI 8 صفحه سال انتشار : 2007 سفارش ترجمه

Base-specific and enantioselective studies for the DNA binding of iron(II) mixed-ligand complexes containing 1,10-phenanthroline and dipyrido[3,2-a:2′,3′-c]phenazine

Keywords: 1,10-Phenanthroline; dppz; DNA-binding; Iron(II); Base-specificity; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 8 صفحه سال انتشار : 2007 سفارش ترجمه

Engineering the enantioselectivity of glutathione transferase by combined active-site mutations and chemical modifications

Keywords: CDNB; 1-chloro-2,4-dinitrobenzene; GSH; Glutathione; GST; Glutathione transferase; PPO; 1-phenylpropylene oxide; SO; Styrene-7,8-oxide; tSBO; trans-stilbene oxide; Enantioselectivity; Epoxide resolution; Glutathione transferase; Protein modification; Rati

دانلود رایگان متن کامل مقاله ISI 8 صفحه سال انتشار : 2007 سفارش ترجمه

Effects of pressure and temperature on enzymatic reactions in supercritical fluids

Keywords: Activation volume; Enantioselectivity; Enzymatic reaction; Enzyme activity; Supercritical fluids

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2007 سفارش ترجمه

Could linear solvation energy relationships give insights into chiral recognition mechanisms?: 2. Characterization of macrocyclic glycopeptide stationary phases

Keywords: Linear solvation energy relationship; Chiral stationary phase; Enantioselectivity; Chiral mechanisms; Teicoplanin; Macrocyclic glycopeptide; Reversed phase; Normal phase mode

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2007 سفارش ترجمه

Mapping substrate selectivity of lipases from thermophilic fungi

Keywords: Selectivity; High-throughput screening; Fungal lipases; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2007 سفارش ترجمه

Enantioselectivity of immobilized Mn-salen complexes: A computational study

Keywords: Enantioselectivity; Immobilization; Heterogeneous catalysis; Mn-salen; Nanoporous materials; Chirality

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2007 سفارش ترجمه

Oxidation of acyclic monoterpenes by P450 BM-3 monooxygenase: influence of the substrate E/Z-isomerism on enzyme chemo- and regioselectivity

Keywords: P450 BM-3 monooxygenase; Monoterpenes; Oxidation; Regioselectivity; Enantioselectivity;

دانلود رایگان متن کامل مقاله ISI 10 صفحه سال انتشار : 2007 سفارش ترجمه

Exploring the molecular basis of the enantioselective binding of penicillin G acylase towards a series of 2-aryloxyalkanoic acids: A docking and molecular dynamics study

Keywords: Docking; Enantioselectivity; Molecular dynamics; Molecular modeling; Penicillin G acylase

دانلود رایگان متن کامل مقاله ISI 11 صفحه سال انتشار : 2007 سفارش ترجمه

Synthesis of optically active 2-fluoroalk-1-en-3-yl esters and chirality transfer in their Claisen-type rearrangements

Keywords: Asymmetric synthesis; Lipases; Kinetic resolution; [3,3]-Sigmatropic rearrangements; Vinyl fluorides; Fluorinated allylic esters; Fluorinated amino acids; Enantioselectivity; Chirality transfer

دانلود رایگان متن کامل مقاله ISI 12 صفحه سال انتشار : 2007 سفارش ترجمه

Inverting enantioselectivity of Burkholderia gladioli esterase EstB by directed and designed evolution

Keywords: Directed evolution; Enantioselectivity; Esterase; High-throughput screening

دانلود رایگان متن کامل مقاله ISI 14 صفحه سال انتشار : 2007 سفارش ترجمه

CuI-Fesulphos complexes: efficient chiral catalysts for asymmetric 1,3-dipolar cycloaddition of azomethine ylides

Keywords: 1,3-Dipolar cycloaddition; Azomethine ylide; Asymmetric catalysis; Chiral ligand; Copper; Enantioselectivity; Dipolarophile;

دانلود رایگان متن کامل مقاله ISI 16 صفحه سال انتشار : 2007 سفارش ترجمه

Use of sugar-based ligands in selective catalysis: Recent developments

Keywords: Catalysis; Asymmetric; Enantioselectivity; Carbohydrate-based ligands

دانلود رایگان متن کامل مقاله ISI 24 صفحه سال انتشار : 2007 سفارش ترجمه

Ionic liquids as a medium for enantioselective catalysis

Keywords: Ionic liquids; Homogeneous catalysis; Enantioselectivity; Metal catalysis; Biocatalysis; Organocatalysis; Catalyst recyclingLiquides ioniques; Catalyse homogène; Énantiosélectivité; Catalyse métallique; Biocatalyse; Organocatalyse; Recyclage du catalyseur

دانلود رایگان متن کامل مقاله ISI 26 صفحه سال انتشار : 2007 سفارش ترجمه

Enantioselective synthesis of steroids

Keywords: Steroids; Asymmetric inductions; Pool chiral; Enantioselectivity; Resolution; acac; acetylacetonate; 9-BBN; 9-bora-bicyclo[3.3.1]nonane; BHT; 2,6-di-tert-butyl-4-methylphenol; BINAP; 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl; Binol; 1,1′-binaphtha

دانلود رایگان متن کامل مقاله ISI 106 صفحه سال انتشار : 2007 سفارش ترجمه

Asymmetric epoxidation of alkenes using a mixed-ligand complex of ruthenium(III) containing a sugar-based ligand

Keywords: Ruthenium complex; Sugar-based ligand; t-BuOOH; Styrenes; Epoxidation; Enantioselectivity; Alkenes

دانلود رایگان متن کامل مقاله ISI 4 صفحه سال انتشار : 2006 سفارش ترجمه

Arylid-Box: A new family of chiral bis-oxazoline ligands for metal mediated catalytic enantioselective synthesis

Keywords: Asymmetric catalysis; Enantioselectivity; Bis-oxazoline; Cyclopropanation; DFT study

دانلود رایگان متن کامل مقاله ISI 4 صفحه سال انتشار : 2006 سفارش ترجمه

Catalytic asymmetric dihydroxylation of olefins using polysulfone-based novel microencapsulated osmium tetroxide

Keywords: Microencapsulation; Asymmetric dihydroxylation; Chiral ligand; Enantioselectivity;

دانلود رایگان متن کامل مقاله ISI 4 صفحه سال انتشار : 2006 سفارش ترجمه

Fluorescent enantioselective receptor for S-mandelate anion based on cholic acid

Keywords: Cholic acid; Mandelate; Fluorescence; Enantioselectivity;

دانلود رایگان متن کامل مقاله ISI 4 صفحه سال انتشار : 2006 سفارش ترجمه

Chiral bicyclic guanidines: a concise and efficient aziridine-based synthesis

Keywords: Guanidine; Aziridine; Michael reaction; Enantioselectivity; Regioselectivity;

دانلود رایگان متن کامل مقاله ISI 4 صفحه سال انتشار : 2006 سفارش ترجمه

An unexpected inversion of enantioselectivity in direct asymmetric aldol reactions on a unique L-proline/γ-Al2O3 catalyst

Keywords: Asymmetric catalysis; Aldol reactions; L-Proline/γ-Al2O3 catalyst; Inversion; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 4 صفحه سال انتشار : 2006 سفارش ترجمه

A metal ion-based method for the screening of nitrilases

Keywords: High-throughput screening; Nitrilase; UV–vis spectroscopy; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 4 صفحه سال انتشار : 2006 سفارش ترجمه

Asymmetric hydrogenation of racemic 2-fluorocyclohexanone over cinchona modified Pt/Al2O3 catalyst

Keywords: Heterogeneous hydrogenation; Enantioselectivity; Cinchona alkaloid; Platinum catalyst; Kinetic resolution; Fluoroketone

دانلود رایگان متن کامل مقاله ISI 5 صفحه سال انتشار : 2006 سفارش ترجمه

The lid is a structural and functional determinant of lipase activity and selectivity

Keywords: Candida rugosa lipase isoform 1; Bacillus subtilis lipase A; Pseudomonas fragi lipase; Specificity; Temperature stability; Enantioselectivity; Site-directed mutagenesis; Domain swapping

دانلود رایگان متن کامل مقاله ISI 5 صفحه سال انتشار : 2006 سفارش ترجمه

(S)-2-Aryl-4,4-diphenyl-3,1,2-oxazaboro[3.3.0]octanes: Efficient catalysts for the asymmetric borane reduction of electron-deficient ketones

Keywords: Asymmetric reduction; Borane; Electronic effect; Enantioselectivity; Ketone

دانلود رایگان متن کامل مقاله ISI 5 صفحه سال انتشار : 2006 سفارش ترجمه

Enantioselective C–C bond formation in styrene dimerization with chiral ansa zirconocene-based catalyst

Keywords: Enantioselectivity; Ansa zirconocene; Hydrooligomer

دانلود رایگان متن کامل مقاله ISI 5 صفحه سال انتشار : 2006 سفارش ترجمه

Improvement of the functional properties of a thermostable lipase from alcaligenes sp. via strong adsorption on hydrophobic supports

Keywords: Lipase QL from Alcaligenes sp.; Protein immobilization; Stabilization; Enantioselectivity; Lipase modulation

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Purification and catalytic properties of novel enantioselective lipase from Acinetobacter sp. ES-1 for hydrolysis of (S)-ketoprofen ethyl ester

Keywords: Lipase; Acinetobacter sp. ES-1; Enantioselectivity; (R,S)-Ketoprofen ethyl ester; (S)-Ketoprofen; Catalytic properties

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Enantioselective aza-Henry reaction using cinchona organocatalysts

Keywords: Organocatalysis; Imines; Nitromethane; β-Nitroamines; Aza-Henry reaction; Cinchona alkaloids; Enantioselectivity;

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Identification of a thermostable and enantioselective amidase from the thermoacidophilic archaeon Sulfolobus tokodaii strain 7

Keywords: Thermostable amidase; Archaeon; Recombinant fusion protein; High-throughput refolding; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

An efficient direct activation method transferring diastereopure platinum complex of BIPHEP to highly efficient Lewis acid catalyst for enantioselective carbonyl-ene reaction

Keywords: Enantioselectivity; Carbonyl-ene; BIPHEP; Platinum; Activation

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Enantioselectivity modulation through immobilization of Arthrobacter sp. lipase: Kinetic resolution of fluoxetine intermediate

Keywords: Immobilization; Enantioselectivity; Kinetic resolution; Arthrobacter

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Study on the relationship between structure and enantioselectivity of a hyperthermophilic esterase from archaeon Aeropyrum pernix K1

Keywords: BTB, bromothymol blue; APE1547, WT; Mutant enzyme, TBC26; epPCR, error-prone polymerase chain reactionDirected evolution; Enantioselectivity; Screening; 2-Octanol acetate; Configuration; Mutant

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Enantioselective extraction of d,l-tryptophan by a new chiral selector: Complex formation with di(2-ethylhexyl)phosphoric acid and O,O′-dibenzoyl-(2R,3R)-tartaric acid

Keywords: Chiral selector; Complex extractant; Distribution ratio; Enantioselectivity; d,l-Tryptophan

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Cloning and optimization of a nitrilase for the synthesis of (3S)-3-cyano-5-methyl hexanoic acid

Keywords: Nitrilase cloning; AtNit1; Expression optimization; Fluorescent assay; Arabidopsis thaliana; Enantioselectivity; Protein engineering; Oligomerization

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Crystallization of leucine on a self-assembled monolayer with covalently attached enantiomeric leucine molecules

Keywords: Self-assembled monolayer; Enantioselectivity; Chirality; Crystallization

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2006 سفارش ترجمه

Enantioselective determination of a gastroprokinetic drug using amylose tris-(3,5-dimethylphenylcarbamate) as a stationary phase by HPLC

Keywords: Gastroprokinetic; Mosapride citrate; Enantioselectivity; Resolution; Polarimetric detector; Amylose tris-(3,5-dimethylphenylcarbamate)

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Multimilligram enantioresolution of low-solubility xanthonolignoids on polysaccharide chiral stationary phases using a solid-phase injection system

Keywords: Xanthonolignoids; Kielcorins; tris-3,5-Dimethylphenylcarbamate amylose; Solid-phase injector; Enantioselectivity; Antitumor

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Highly efficient asymmetric epoxidation of alkenes with a novel chiral complex of ruthenium(III) containing a sugar based ligand and triphenylphosphines

Keywords: Ruthenium complex; t-BuOOH; Alkenes; Epoxidation; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Resolution of (±)-menthol by immobilized Candida rugosa lipase on superparamagnetic nanoparticles

Keywords: Immobilized lipase; Superparamagnetic nanoparticle; Resolution; Menthol; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Enantioselective molecular imprinting polymer coated QCM for the recognition of l-tryptophan

Keywords: l- and d-tryptophan; Molecularly imprinted polymers (MIPs); Quartz crystal microbalance (QCM); Bio-mimetic sensor; Enantioselectivity

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Asymmetric epoxidation of styrene and chromenes catalysed by chiral (salen)Mn(III) complexes with a pyrrolidine backbone

Keywords: Asymmetric epoxidation; Enantioselectivity; Pyrrolidine; (Salen)Mn(III) complex; Unfunctionalized alkenes

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Origin of ligand acceleration in heterogeneous ethyl pyruvate hydrogenation

Keywords: Heterogeneous catalysis; Hydrogenation; Enantioselectivity; Ligand acceleration

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

The preparation of polymerizable, optically active non-steroidal anti-inflammatory drugs derivatives by irreversible enzymatic methods

Keywords: NSAIDs; Irreversible resolution; Enantioselectivity; Lipases; Prodrug; Vinyl esters

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Platinum group metals as catalysts in enantioselective 1-phenylpropane-1,2-dione hydrogenation

Keywords: Hydrogenation; Diones; Enantioselectivity; Regioselectivity; Pd; Rh; Ru; Ir; Pt

دانلود رایگان متن کامل مقاله ISI 8 صفحه سال انتشار : 2006 سفارش ترجمه