نتایج جستجو برای: Vilsmier reagent

تعداد نتایج: 17136  

Journal: :iranian journal of catalysis 2011
ahmed ali hullio g.m. mastoi

a direct and an efficient conversion of a wide range of primary, secondary even tertiary alcohols to the corresponding iodides have been achieved under ionic liquid conditions. the method involves preparation of ionic liquid-based iminium chloride intermediate from dmf-like ionic liquid then stirring it with alcohol in present of sodium iodide. the higher yields of alkyl iodides were obtained w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

selective desulfurization of thiocarbonyls to carbonyls thioacetalization of aldehydes and ketones a useful reagent system for the dethioacetalization reactions

Journal: :IET systems biology 2008
P Ye E Entcheva S A Smolka R Grosu

Cycle-linear hybrid automata (CLHAs), a new model of excitable cells that efficiently and accurately captures action-potential morphology and other typical excitable-cell characteristics such as refractoriness and restitution, is introduced. Hybrid automata combine discrete transition graphs with continuous dynamics and emerge in a natural way during the (piecewise) approximation process of any...

Ahmed Ali Hullio, G.M. Mastoi

A direct and an efficient conversion of a wide range of primary, secondary even tertiary alcohols to the corresponding iodides have been achieved under ionic liquid conditions. The method involves preparation of ionic liquid-based iminium chloride intermediate from DMF-like ionic liquid then stirring it with alcohol in present of sodium iodide. The higher yields of alkyl iodides were obtained w...

Journal: :acta medica iranica 0
m. abdollahi. y. behmanesh m. akhgari

organophosphorus compounds are known to inhibit the esteratic site of acetylcholinesterase by phosphorylation. the phosphorylated esteratic site of acetylcholinesterase undergoes hydrolytic regeneration at a slow or negligible rate. nucleophilic agents such as hydroxytamine, hydroxamic acids, and oximes reactivate the enzyme more erapidfy than does spontaneous hydrolysis. the red cell cholinest...

Journal: :acta medica iranica 0
fatemeh farahmand department of gastroentestinal, children's medical center, tehran university of medical sciences, tehran, iran. mohammad eshagh roze department of pediatrics, children’s medical center, tehran university of medical sciences, tehran, iran. sedighe shams department of gastroentestinal, children’s medical center, tehran university of medical sciences, tehran, iran. mahsa ghajarzadeh brain and spinal injury repair research center, tehran university of medical sciences, tehran, iran. bahram mohammadi department of pediatrics, children’s medical center, tehran university of medical sciences, tehran, iran.

this study was aimed to evaluate the efficacy of dipstick tests (leukocyte esterase and nitrite) in diagnosis of spontaneous bacterial peritonitis (sbp) in cirrhotic patients. forty six children with ascites hospitalized between 2009 and 2010 in children medical center were enrolled in this study. reagent strip assays for leukocyte esterase and nitrite were performed on ascetic fluid and the re...

Journal: :Synlett 2009

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