Güncel Gönderiler: Yayın Koleksiyonu
Toplam kayıt 191, listelenen: 81-100
-
Stereoselective synthesis of deoxycarbaheptopyranose derivatives: 5a-carba-6-deoxy-alpha-DL-galacto-heptopyranose and 5a-carba-6-deoxy-alpha-DL-gulo-heptopyranose
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)Two new deoxycarbaheptopyranoses, 5a-carba-6-deoxy-alpha-DL-galacto-heptopyranose and 5a-carba-6-deoxy-alpha-DL-gulo-heptopyranose were prepared starting from cyclohexa-1,4-diene. The addition of dichloroketene to ... -
Solvent-Free Synthesis of Chiral Schiff-Base Ligands Based on Ferrocene under Microwave Irradiation and Application to Enantioselective Nitroaldol (Henry) Reaction
(WILEY-BLACKWELL, 2011)Chiral Schiff-bases 3a-f based on ferrocene were designed and synthesized using solvent-free methods by mixing ferrocene carbaldehyde 1 with amino alcohols and amines 2a-f under microwave irradiation and classical method ... -
Changes in intracellular protein expression in cortex., thalamus and hippocampus in a genetic rat model of absence epilepsy
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)Epilepsy is a chronic disorder characterized by repeated seizures resulting from abnormal activation of neurons in the brain. Although mutations in genes related to Na+, K+, Ca2+ channels have been defined, few studies ... -
DEVELOPMENT OF A NEW ENRICHMENT METHOD FOR SIMULTANEOUS DETERMINATION OF COPPER AND ZINC IN WATER SAMPLES
(WILEY-BLACKWELL, 2011)In the present study, an enrichment and separation method for the simultaneous determination of trace amounts of Cu and Zn in water samples was developed. Copper and Zn ions found in water matrix in trace amounts were ... -
A novel class of compounds: synthesis of 5,5 '-carbonyl-bis(5,6-dihydro-4H-furo- and thieno-[2,3-c]pyrrol-4-ones)
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)We hereby report the first synthesis of novel class of compounds, 5,5'-carbonyl-bis(5,6-dihydro-4H-thieno- and furo-[2,3-c]pyrrol-4-one starting from methyl 2-(2-methoxy-2-oxoethyl) thiophene- and furan-3-carboxylate, ... -
DFT, FT-IR, FT-Raman and NMR studies of 4-(substituted phenylazo)-3,5-diacetamido-1H-pyrazoles
(ELSEVIER SCIENCE BV, 2011)We present a detailed analysis of the structural and vibrational spectra of some novel azo dyes. 2-(Substituted phenylazo)malononitriles were synthesized by the coupling reaction of the diazonium salts, which were prepared ... -
Synthesis and biological evaluation of optically active conjugated gamma- and delta-lactone derivatives
(PERGAMON-ELSEVIER SCIENCE LTD, 2012)An efficient synthesis of racemic and both enantiomeric forms of heteroaryl substituted gamma- and delta-lactone derivatives derived from allyl and homoallyl alcohol backbones has been accomplished via ring closing metathesis ... -
Preconcentration of Aluminum on Nano ZrO2/B2O3 and Its Determination by Flame Atomic Absorption Spectrometry
(TAYLOR & FRANCIS INC, 2012)This study presents a chelating agent free solid phase extraction method for preconcentration of Al(III) using hybrid nano zirconium dioxide-boron oxide (ZrO2/B2O3) sorbent. This method is based on the sorption of Al(III) ... -
Chemical Changes in Leaves of Corn and Bean Plants Exposed to Simulated Acid Rain
(CHEM SOC PAKISTAN, 2012)In this study, the effects of simulated acid rain on vitamin E, vitamin D-2 and fatty acids levels of corn and bean leaves were investigated. It was determined that the level of palmitoleic acid (C16:1) increased in ... -
Vitamin, Trace Element, and Fatty Acid Levels of Vitex agnus-castus L., Juniperus oxycedrus L., and Papaver somniferum L. Plant Seeds
(HINDAWI LTD, 2013)The levels of fat-soluble vitamin, trace element and fatty acid of Vitex agnus-castus L., Juniperus oxycedrus L., and Papaver somniferum L. seeds in Turkey were determined by using HPLC, ICP-OES, and GC, respectively. In ... -
Synthesis, Characterization and Antibacterial Activity of Imidazole Derivatives of 1,10-Phenanthroline and their Cu(II), Co(II) and Ni(II) Complexes
(BUREAU SCIENTIFIC PUBL, 2013)Six new CuL1 (L-1 = 4-bromo-2-(1H-imidazo[4,5-f][1,10]phenanthroline-2-yl)phenol), CoL1, NiL1, CuL2 (L-2 = 2-(1H-imidazo[4,5-f] [1,10]phenanthroline-2-yl)-5-methoxyphenol), CoL2 and NiL2 complexes were synthesized. L-1 and ... -
Proteomic analysis of early responsive resistance proteins of wheat (Triticum aestivum) to yellow rust (Puccinia striiformis f. sp tritici) using ProteomeLab PF2D
(SOUTHERN CROSS PUBL, 2013)Wheat (Triticum aestivum L.) yellow rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most destructive diseases of wheat worldwide. To clarify the molecular details and components of the resistance ... -
SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF 2-p-TOLYL-1H-IMIDAZO[4,5f][1,10] PHENANTHROLINE AND ITS Co(II), Ni(II) AND Cu(II) COMPLEXES
(CHEM SOC ETHIOPIA, 2013)In this study, the ligand, 2-p-tolyl-1H-imidazo[4,5-f][1,10] phenanthroline (L) was synthesized by the reaction of 1,10-phenanthroline-5,6-dione with 4-methylbenzaldehyde. The complexes of L were prepared with Co(II), ... -
Effects of Ellagic acid and Hesperetin on Levels of Some Elements in Livers of Aluminum-Induced Rats
(TURKISH BIOCHEM SOC, 2013)Objective: Ellagic acid and hesperetin are well known as having free radical scavenging activity in some rat tissues. Aluminum is known to cause toxic effects on various organ systems. In this study, the protective role ... -
Experimental and Computational Studies on the Thermal Degradation of Nitroazidobenzenes
(WILEY-V C H VERLAG GMBH, 2013)In this combined experimental and theoretical study the thermal degradation of 2-nitroazidobenzene (I), 2,4-dinitroazidobenzene (II) and 2,4,6-trinitroazidobenzene (III) to yield benzofuroxan (IV), 4-nitrobenzofuroxan (V), ... -
Solid-phase extraction and separation procedure for trace aluminum in water samples and its determination by high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS)
(SPRINGER, 2013)In the present study, a separation/preconcentration procedure for determination of aluminum in water samples has been developed by using a new atomic absorption spectrometer concept with a high-intensity xenon short-arc ... -
Facile synthesis of novel 7-aminofuro- and 7-aminothieno[2,3-d]pyridazin-4(5H)-one and 4-aminophthalazin-1(2H)-ones
(PERGAMON-ELSEVIER SCIENCE LTD, 2013)We hereby report the synthesis of a novel class of compounds, 7-aminofuro- and 7-aminothieno[2,3-d]pyridazin-4(5H)-one and 4-aminophthalazin-1(2H)-ones starting from methyl 2-(2-methoxy-2-oxoethyl)furan- and thiophene-3- ... -
New nickel(II), palladium(II), platinum(II) complexes with aromatic methanesulfonylhydrazone based ligands. Synthesis, spectroscopic characterization and in vitro antibacterial evaluation
(ELSEVIER SCIENCE SA, 2013)Methanesulfonicacid hydrazide (a sulfonamide compound, msh: CH3SO2NHNH2) derivatives: salicylalde hydemethanesulfonylhydrazone (salmsh), 2-hydroxyacetophenonemethanesulfonyl hydrazone (afmsh), 2-hydroxy-3-metoxybenzaldeh ... -
Some new energetic benzaldoximes Synthesis, structure and a comparison of theoretic and experimental results of thermal decomposition
(SPRINGER, 2013)5-Nitro-2-hydroxy benzaldoxime (I), 3-nitro-4-hydroxy benzaldoxime (II), 3,5-dinitro-2-hydroxy benzaldoxime (III), and 3,5-dinitro-4-hydroxy benzaldoxime (IV) were prepared from their respective nitrated aldehydes. Prepared ... -
Simultaneous Preconcentration and Determination of Ni and Pb in Water Samples by Solid-Phase Extraction and Flame Atomic Absorption Spectrometry
(AOAC INT, 2013)An analytical method for the preconcentration of nickel (Ni) and lead (Pb) in water samples on polystyrene-graft-ethylmethacrylate copolymer resin has been developed. The determinations of metal ions were performed by flame ...
