Results 21 to 30 of about 303,276 (212)
Electrochemical behaviour of copper in potassium thiocyanate solution : II. Analysis of potentiostatic current transients [PDF]
, 2021 The kinetics of passivity and pitting corrosion of copper in borate-boric acid buffer containing potassium thiocyanate is studied at 25°C by means of potentiostatic transients recorded at different constant potential values.
Figueroa, M. G. +3 more
core
SYNTHESIS OF THIOESTERS AND THIOAMIDES USING POTASSIUM THIOCYANATE UNDER MICROWAVE IRRADIATION
, 2022 A simple, expedited, and eco-friendly protocol for the synthesis of thioesters and thioamides using Potassium thiocyanate as thionating agent under microwave irradiation method is described.
Gaonkar, Santosh L. +2 more
core +1 more source
Reversible Sorptive Preconcentration of Noble Metals Followed by FI-ICP-MS Determination
Molecules, 2022 In this paper, we propose the combined procedure of noble metal (NM) determination, including fire assay, acid digestion, and reversible dynamic sorptive preconcentration, followed by flow-injection ICP-MS.
Yulia A. Maksimova +7 more
doaj +1 more source
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
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
Novel one-pot process for the synthesis of ethyl 2-imino-4-methyl-2,3-dihydrothiazole-5-carboxylates [PDF]
Journal of the Serbian Chemical Society, 2015 A facile one-pot two-step process for the synthesis of ethyl 2-imino-4-methyl-2,3-dihydrothiazole-5-carboxylates via the cyclocondensation of ethyl 2-thiocyanatoacetoacetate with a variety of hydrazine and hydrazide derivatives has been ...
Beyzaei Hamid, Aryan Reza, Moghadas Hadi
doaj +1 more source
CHIMIA, 1968 EMF measurements on liquid membranes show a highly selective interaction of the antibiotic valinomycin with K+ compared with Na+. A crystalline 1: 1 complex of valinomycin with potassium thiocyanate has been prepared.
Lavinia A. R. Pioda +2 more
doaj +1 more source
Angewandte Chemie, EarlyView.Chiral supramolecular templates derived from natural amino acids direct the spatial organization of SHG‐active [Zn(SCN)4]2− units, enabling diverse second‐harmonic generation in hybrid zinc thiocyanates. ABSTRACT Chiral organic molecules have been widely used to construct hybrid nonlinear optical (NLO) materials with second‐harmonic generation (SHG ...
Xuemei Wen +6 more
wiley +2 more sources
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
doaj +1 more source
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
doaj +1 more source