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Search for "potassium thiocyanate" in Full Text gives 10 result(s) in Beilstein Journal of Organic Chemistry.
Recent advances in transition-metal-free arylation reactions involving hypervalent iodine salts
Beilstein J. Org. Chem. 2024, 20, 2891–2920, doi:10.3762/bjoc.20.243
Harnessing the versatility of hydrazones through electrosynthetic oxidative transformations
Beilstein J. Org. Chem. 2024, 20, 1988–2004, doi:10.3762/bjoc.20.175
- thiocyanation of ketene dithioacetals, Wang and Yang et al. mentioned one example of thiocyanation of benzaldehyde-derived hydrazone 120 using potassium thiocyanate as a source of thiocyanate radical. The electrolysis was conducted in the presence of two equivalents of water in acetonitrile with lithium
Access to highly substituted oxazoles by the reaction of α-azidochalcone with potassium thiocyanate
Beilstein J. Org. Chem. 2020, 16, 2108–2118, doi:10.3762/bjoc.16.178
- azidochalcones, when treated with potassium thiocyanate in the presence of potassium persulfate, lead to 2,4,5-trisubstituted oxazoles in good yields. Incidentally, 2-aminothiazoles are the products when ferric nitrate is employed instead of persulfate in the above reaction. Keywords: aminothiazole; oxazole
- substituted α-azidochalcones with potassium thiocyanate. Thiocyanate is a known ambident reagent with two potential sites of attack, enabling the selective and efficient construction of C–C and C–N bonds towards biologically important heterocyclic skeletons [62][63][64]. Results and Discussion Previously, we
- catalytic efficiency of persulfate. The reaction was found occurring most efficiently with 1 equiv of 1i, 3 equiv of potassium thiocyanate 2, and 0.5 equiv of potassium persulfate with a yield of 97% of 3i. The yellow solid obtained after filtration of the reaction mixture afforded pure product 3i without
The reaction of arylmethyl isocyanides and arylmethylamines with xanthate esters: a facile and unexpected synthesis of carbamothioates
Beilstein J. Org. Chem. 2020, 16, 159–167, doi:10.3762/bjoc.16.18
- of xanthate esters with amines [18]. Furthermore, many methods have also been reported for the synthesis of cyclic thiocarbamates, and these include reactions of isothiocyanates with aldehydes in the presence of organocatalysts [19][20], reactions of vicinal diols with potassium thiocyanate [21
A novel three-component reaction between isocyanides, alcohols or thiols and elemental sulfur: a mild, catalyst-free approach towards O-thiocarbamates and dithiocarbamates
Beilstein J. Org. Chem. 2019, 15, 1523–1533, doi:10.3762/bjoc.15.155
- based on the reaction of amines and the readily available, but toxic and volatile carbon disulfide [42][43][44][45]. Greener methods for the synthesis of thiocarbamates and dithiocarbamates have been developed such as the addition of the amine component to potassium thiocyanate [46][47] or
Dialkyl dicyanofumarates and dicyanomaleates as versatile building blocks for synthetic organic chemistry and mechanistic studies
Beilstein J. Org. Chem. 2017, 13, 2235–2251, doi:10.3762/bjoc.13.221
- presence of Al2O3·KF in acetonitrile at room temperature (rt) [9]. Another efficient method for the preparation of dialkyl esters E-1 relies on the usage of alkyl bromo(cyano)acetates 3, which upon treatment with potassium thiocyanate in aqueous acetonitrile at room temperature are converted into the
Mechanochemical synthesis of thioureas, ureas and guanidines
Beilstein J. Org. Chem. 2017, 13, 1828–1849, doi:10.3762/bjoc.13.178
- route to primary monosubstituted thioureas 32 [42]. Primary thioureas are typically prepared in solution from benzoyl chloride and ammonium thiocyanate or by condensation of amine hydrochlorides and potassium thiocyanate [43][44]. Our strategy was to synthesize the desired thiocarbamoyl benzotriazole in
Phosphorus pentasulfide mediated conversion of organic thiocyanates to thiols
Beilstein J. Org. Chem. 2017, 13, 1184–1188, doi:10.3762/bjoc.13.117
- potassium thiocyanate in refluxing propylene glycol [19]. Simple short chain thiocyanates were found to react rapidly to give the corresponding thiols. In comparison to the alkyl substrates, the benzyl derivative reacted sluggishly possibly due to electronic effects which was further evident by the longer
Use of 3-[18F]fluoropropanesulfonyl chloride as a prosthetic agent for the radiolabelling of amines: Investigation of precursor molecules, labelling conditions and enzymatic stability of the corresponding sulfonamides
Beilstein J. Org. Chem. 2013, 9, 1002–1011, doi:10.3762/bjoc.9.115
- yields but can be considered as more efficient, as it is shorter by one step. The synthesis of the 19F-based reference compounds started with the conversion of commercially available 1-fluoro-3-iodopropane (8) with potassium thiocyanate, analogous to the preparation of 2 (Scheme 2). The key step was the
Nano copper oxide catalyzed synthesis of symmetrical diaryl sulfides under ligand free conditions
Beilstein J. Org. Chem. 2011, 7, 886–891, doi:10.3762/bjoc.7.101
- K. Harsha Vardhan Reddy V. Prakash Reddy A. Ashwan Kumar G. Kranthi Y.V.D. Nageswar Organic Chemistry Divison-I, Indian Institute of Chemical Technology, Hyderabad-500 607, India 10.3762/bjoc.7.101 Abstract Potassium thiocyanate acts as an efficient sulfur surrogate in C–S cross-coupling
- reactions mediated by recyclable copper oxide nanoparticles under ligand free conditions. This protocol avoids foul smelling thiols, for the synthesis of a variety of symmetrical diaryl sulfides, via the cross-coupling of different aryl halides with potassium thiocyanate, affording corresponding products in
- moderate to excellent yields. Keywords: aryl halides; aryl sulfides; copper oxide; cross-coupling; ligand free; potassium thiocyanate; recyclable; Introduction After the discovery of copper-promoted Ullmann reaction [1][2][3] for the construction of carbon-hetero atom bonds, several protocols have been
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