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Thiocyanation of anilines

http://www.e-journals.in/PDF/V2N3/691-700.pdf WebJul 6, 2024 · Photocatalytic C–H Thiocyanation of NH2-Enaminones and the Tunable Synthetic Routes to 2-Aminothiazoles and 2-Thiazolinones. The Journal of Organic Chemistry 2024 ... Cascade Reaction of Tertiary Enaminones, KSCN, and Anilines: Temperature-Controlled Synthesis of 2-Aminothiazoles and 2-Iminothiazoline. The …

Mechanochemical Thiocyanation of Aryl Compounds via C–H ...

WebJun 5, 2013 · Semantic Scholar extracted view of "Electrochemical thiocyanation of nitrogen-containing aromatic and heteroaromatic compounds" by L. Fotouhi et al. ... mild, and efficient procedures for the thiocyanation of N-heterocycles, substituted anilines (electron-rich and electron-deficient), and N-substituted aromatic amines at room … WebFeb 5, 2012 · Highly efficient regioselective thiocyanations of indoles and N,N- disubstituted anilines are achieved via a green and simple protocol using Silica Boron Sulfonic Acid (SBSA) as a new catalyst, KSCN and hydrogen peroxide as a mild and environmentally friendly oxidant in aqueous condition. ... The thiocyanation was investigated in various ... uls mascouche https://jfmagic.com

Rapid and efficient thiocyanation of phenols, indoles, and …

WebIn the presence of tert ‐butyA highly efficient general method for the transition‐metal‐free, direct Csp 2 –H radical thiocyanation of free anilines was developed, which can be used with stable and nontoxic potassium SCN as a thiocyanation source and potassium persulfate as the oxidant to synthesize p ‐thiocyanoanilines with good yields, … WebScheme S1 Thiocyanation reaction of para-substituted anilines. In any above reactions, the corresponding 2-thiocyanatoanilines could not be observed, which indicated that the electrochemical thiocyanation of anilines might be para-specific. WebOct 22, 2024 · The report is the first example on the visible-light mediated thiocyanation of cinnamic acids, ... (2024) Transition-metal-free regioselective thiocyanation of phenols, anilines and heterocycles. Tetrahedron Lett 58:415–418. Article CAS Google Scholar Chen B, Guo S, Guo X, Zhang G, Yu Y (2015) Selective access to 4-substituted 2 ... ul solutions ottawa

Transition‐Metal‐Free Csp2−H Regioselective Thiocyanation of Free Anilines

Category:Visible-Light-Mediated Decarboxylative Thiocyanation of Cinnamic …

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Thiocyanation of anilines

Metal‐Free and Visible‐Light‐Promoted C‐3 Thiocyanation of 2 ...

WebAn efficient ultrasound-promoted thiocyanation of phenols, indoles, and anilines in the presence of N-chlorosuccinimide and NH 4 SCN using 1,1,1,3,3,3-hexafluoro-2-propanol as … WebJul 6, 2024 · A simple, efficient, and smooth thiocyanation of indoles, phenols and aniline derivatives using NH 4 SCN, DMSO and H 2 SO 4 in DMF is introduced. Using this …

Thiocyanation of anilines

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WebThis catalyst is used in regioselective thiocyanation of indoles, anilines, pyrroles and their derivatives (aromatic and heteroaromatic organic compounds) in the presence of H2O2 as a mild and oxidant in EtOH:H2O (1:1 v/v). These reactions are performed under mild and simple conditions and give regioselective products in high yields and short ... WebWhen serving as a metal-free photocatalyst for an undocumented visible-light-driven thiocyanation of anilines, CMP-1 exhibits excellent photocatalytic performance, with …

WebWhen serving as a metal-free photocatalyst for an undocumented visible-light-driven thiocyanation of anilines, CMP-1 exhibits excellent photocatalytic performance, with single chemoselectivity and high yields for the conversion of 25 types of anilines at ambient conditions. This study fills in the gap of the tubular morphological engineering of ... http://article.sapub.org/10.5923.j.ajoc.20120245.02.html

WebAug 14, 2013 · A green and simple procedure for the thiocyanation of aromatic and heteroaromatic compounds is described. [2-(Sulfooxy)ethyl]sulfamic acid (SESA) (supported on silica) is easily produced by addition of chlorosulfonic acid to 2-aminoethanol and this catalyst is applied as an efficient, reusable, and heterogeneous catalyst for the … WebJun 19, 2024 · An efficient nickel-catalyzed C–H trifluoromethylation for the synthesis of trifluoromethylated free anilines using Togni’s reagent has been developed. This approach exhibits a good functional group tolerance, good regioselectivity, and chemoselectivity under mild conditions. The newly developed economical one-step method is a better alternative …

WebIn the presence of tert ‐butyA highly efficient general method for the transition‐metal‐free, direct Csp 2 –H radical thiocyanation of free anilines was developed, which can be used …

WebThe direct thiocyanation of indoles and pyrrole with ammonium thiocyanate has been achieved using o-iodoxybenzoic acid (IBX) under mild and neutral conditions to produce indol-3-yl and pyrrol-2-yl thiocyanates, respectively, in excellent yields and with high selectivity. This method is effective even with N-substituted arylamines for the … ulsonix topclean 1000WebThe author used CMP-1 as a metal-free photocatalyst that demonstrates outstanding photocatalytic efficiency for the visible-light-driven chemoselective thiocyanation of anilines 78, obtaining excellent to high yields 79 with respect to the transformation of various types of anilines under ambient conditions. 33 The photocatalyst can be used ... thon cookomixWebMay 24, 2024 · A C-3 thiocyanation of 2-aryl-quinolin-4-ones in the presence of eosin-Y and visible light has been developed. The methodology allows easy access to a variety of 2-aryl-3-thiocyano-quinolin-4-ones in moderate to high yields. Regioselective para-thiocyanation of anilines has also been achieved under these conditions. The reaction is ... ul softball scoreWebHerein, we described a practical and efficient one-pot oxidative trifluoromethylthiolation of amines. A panel of primary and secondary amines was functionalized in good yields at … thon city centre hotel brusselsWeb开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 ulson tradingWebDec 23, 2011 · Abstract. Highly efficient regioselective thiocyanations of indoles and N,N-disubstituted anilines are achieved via a green and simple protocol using boron sulfonic acid (BSA) as a new catalyst and KSCN/H 2 O 2 as a mild and environmentally friendly oxidant in aqueous media.. 1. Introduction. The electrophilic thiocyanation of aromatics and … ulsonvmaxWebA 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 ul solutions meaning