نتایج جستجو برای: keto

تعداد نتایج: 6040  

Journal: :iranian journal of public health 0
m. maleki a. blourian m. gharavi t. saadat ajoudani

during a six year period (1969-1974), 29,233 records of the hospital admissions were carefully reviewed from the standpoint of age, sex incidence, precipitating factors, method of treatment and results in diabetes and diabetic coma patients in the isfahan university medical school’s hospitals. two hundred and fifty cases of diabetic patients were found (0.8% of the total), from which 25 (8%) we...

Straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. Hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, Cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furni...

Journal: :Cukurova Medical Journal 2021

Purpose. The aim of this study was to investigate the association between prostanoid [thromboxane (TxA2) and prostacyclin (PGI2)] levels in synovial fluid infrapatellar fat pad (IPFP)/ suprapatellar (SPFP) thickness as well other clinical findings knee steoarthritis (OA) patients.
 Materials Methods: 16 patients with OA effusion were included. average pain evaluated using a Visual Analogue...

Journal: :journal of sciences islamic republic of iran 0

straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furnished ...

Journal: :iranian journal of catalysis 2015
jasem aboonajmi malek taher maghsoodlou nourallah hazeri mojtaba lashkari mohyeddin safarzaei

fecl3.6h2o was used as an efficient catalyst for the synthesis of highly functionalized piperidines via a one-pot five-component reaction of aromatic amines, aromatic aldehydes and β-keto esters in etoh at room temperature. the remarkable advantages offered by this method are good yields, simple procedure, short reaction times, no need to column chromatography and easy work-up. the structures o...

Journal: :Journal of Electronic Materials 2021

Keto-bromothymol blue [BTB]keto was quantitatively prepared by potassium permanganate oxidation of bromothymol in an alkaline medium at pH > 12. When reacting with dinitrophenyl hydrazine and hydroxylamine, the obtained keto derivatives were characterized FTIR, TDDFT-DFDT computations, optical properties. The resulting compounds found to have a high chelation affinity most hydroxylamine forming...

Journal: :Journal of Pharmaceutical and Biomedical Analysis 2021

• Pillar array columns was applied to α-keto acids analysis. α-Keto were derivatized with 1,2-diamino-4,5-methylenedioxybenzene for fluorescence detection. Four separated on pillar in 160 s. Three branched-chain human plasma samples successfully quantified. Branched-chain (BCKAs, namely, α-ketoisovaleric acid (KIV), α-ketoisocaproic (KIC), and α-keto-β-methylvaleric (KMV)) are related many dise...

Ali Morsali S. Ali Beyramabadi,

Palladium (II) coordination complexes catalyze the reaction of alcohols with ketones to yield ethers. During the catalytic cycle, the alcohol adds selectively to the β-carbon (anti-Markovnikov). In this work, mechanism and kinetics for the reaction of methanol with methyl vinyl ketone (MVK), being catalyzed by Pd, has been theoretically investigated in detail. Using quantum mechanical approach,...

H. Aghaie L. Papei M. Monajjemi

Using Hartree–Fock (HF) and ِِDensity Functional Theory (DFT) calculations the thermodynamic properties such as thermal energy , , thermal enthalpy , , thermal entropy , , thermal Gibbs free energy , , heat capacity ,Cv, and molecular structures of several species involving in keto↔enol tautomerism related to acetaldehyde (A), 5,5-dimethyl-1,3-cyclohexanedione (dimedone) and  acetylacetone (AA) h...

Journal: :The Journal of biological chemistry 1981
T B Patel M S DeBuysere L L Barron M S Olson

The regulation of the branched chain alpha-keto acid dehydrogenase multienzyme complex was investigated in the isolated, perfused rat liver. The metabolic flux through the branched chain alpha-keto acid dehydrogenase was monitored by measuring the production of 14CO2 from infused 1-14C-labeled branched chain alpha-keto acid substrates. The rate of decarboxylation of alpha-keto[1-14C]isocaproate...

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