Results 21 to 30 of about 17,045 (218)
Thiocyanation of Pyrazoles Using KSCN/K2S2O8 Combination
SynOpen, 2018 A convenient and practical thiocyanation of pyrazoles is reported employing a combination of KSCN and K2S2O8 in dimethyl sulfoxide (DMSO). The salient features of the present reaction include environmentally benign reagents and solvents, and simple ...
T. Songsichan +6 more
doaj +1 more source
Definition of an Experimental Blood Like Fluid for Laser Measurements in Cardiovascular Studies
Applied Rheology, 2007 Nowadays it is necessary to perform experimental measurements to compare with numerical calculations. In this study we focus on different aqueous solutions which are tested to obtain in the same time a rheological blood like fluid and particular optical ...
Benard Nicolas +2 more
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CHIMIA, 2014 The first (thio)cyanate to iso(thio)cyanate rearrangements based on 2-fluoroallylic alcohols are presented. Long-chain 2-fluoroallylic alcohols were converted to corresponding N-unsubstituted carbamates by treatment with trichloroacetyl ...
Daniel C. Ramb, Lisa Kost, Günter Haufe
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International Journal of Electrochemical Science, 2019 The inhibition effect of Diantipyrylmethane (DAM) and its synergistic effect with potassium thiocyanate (KSCN) on mild steel corrosion in 1 M HCl solution were investigated by electrochemical methods, gravimetric analysis and scanning electron microscopy
Kangquan Qiao, Ying Zeng
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Preparations of Organic Thiocyanates by the Use of Potassium Thiocyanate
The Journal of the Society of Chemical Industry, Japan, 1962 有機ハロゲン化合物とチオシアン酸カリウムとの反応を各種の有機溶媒中で行ない, ジメチルホルムアミド, ジエチルホルムアミド, ジメチルスルホキシド, テトラメチレンスルホキシドなどを溶媒として用いた場合にとくに好収率でチオシアン酸エステルが生成することをみとめた。この反応は上記溶媒の触媒作用によって促進されるものであり,ハロゲン化アルキルと溶媒とのオニウム型中間体を経由して反応が進行するものと考えられる。ジメチルホルムアミドあるいはジメチルスルホキシドを反応溶媒としてハロゲン化アルキル, ジハロゲノアルカン, ハロゲン化ベンジル, 塩化キシリレンとチオシアン酸カリウムとの反応により,相当するチオシアン酸エステルを合成した。一方 ...
Shigeo Yoneda +2 more
openaire +2 more sources
, 2019 A novel and efficient metal- and solvent-free regioselective para-C–H cyanation of hydroxy-, alkoxy-, and benzyloxyarene derivatives has been introduced, using nontoxic potassium thiocyanate as a cyanating reagent in the presence of silica sulfuric acid (
Ali Reza Sardarian (6263765) +4 more
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Criss-cross Cycloadditions on Ketazines Derived from Alicyclic Ketones
Molecules, 2006 The reactivity of alicyclic ketazines in criss-cross cycloadditions was investigated. They react with potassium cyanate and ammonium thiocyanate in the presence of acetic acid to form spirocyclic perhydro[1,2,4]triazolo[1,2-a][1,2,4]triazole-1,5-diones ...
Milan Potacek, Jiri Verner
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مجلة بغداد للعلوم, 2023 In this work, we synthesized thirteen compounds of 1-(2-furoyl)thiourea derivatives 1-13 by conversion of 2-furoyl chloride to 2-furoyl isothiocyanate by reacting it with potassium thiocyanate in dry acetone in a quite short reflux time then, in the ...
Oday H. R. Al-Jeilawi +1 more
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Propriétés thermodynamiques des mélanges de thiocyanate et de formiate de potassium
, 2017 Les enthalpies de mélange liquide thiocyanate et formiate de potassium sont mesurées calorimétriquement. Les entropies de mélange en sont déduites à l'aide du diagramme de phases.
Gianfrancesco Berchiesi, Marc Laffitte
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Net analyte signal standard addition method for the simultaneous determination of cadmium and nickel [PDF]
Journal of the Serbian Chemical Society, 2009 A novel net analyte signal standard addition method (NASSAM) is presented for the simultaneous determination of Cd2+ and Ni2+ in their mixture by differential pulse polarography. The method combines the advantages of the standard addition method with the
Asadpour-Zeynali Karim +2 more
doaj +3 more sources