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Thiocyanation of anilines

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 ... 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 ...

Green Thiocyanation of Aromatic and Heteroaromatic Compounds …

WebThe thiocyanation reaction of various electron rich arenes such as anilines, indoles, phenols, and other aromatic compounds were selected to show the catalytic performance and efficiency of the as-prepared solid acid catalyst, and excellent yields of the corresponding aryl and heteroaryl thiocyanates derivatives were obtained under metal-free ... Web开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 the yard house scottsdal https://pazzaglinivivai.com

Transition‐Metal‐Free Csp2−H Regioselective …

WebA 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 WebApr 9, 2024 · The first homogeneous and heterogeneous nanoparticle gold-catalyzed addition of sulfur nucleophiles to alkynes was developed. More specifically, gold-catalyzed hydrothiocyanation of haloalkynes gave good yields and good stereoselectivity of vinyl thiocyanates. Furthermore, a sulfur-based gold catalyst (PPh3AuSCN) has shown a … 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 … the yard house sacramento

Recent Advances in the Use of Covalent Organic Frameworks as ...

Category:Transition‐Metal‐Free Csp2−H Regioselective …

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Thiocyanation of anilines

Regioselctive Thiocyanation of Aromatic and Heteroaromatic

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, … WebThe 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 ...

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 … WebMar 1, 2012 · The thiocyanation reaction of various electron rich arenes such as anilines, indoles, phenols, and other aromatic compounds were selected to show the catalytic …

WebHerein, 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 room temperature. This general approach was further applied to the thiocyanation of anilines and the corresponding products can be readily used as SCN electrophilic ... WebAug 14, 2024 · A highly efficient and general method for the direct Csp 2 −H radical thiocyanation of free anilines was developed under transition-metal-free conditions, …

http://www.e-journals.in/PDF/V2N3/691-700.pdf WebAn efficient and solvent-free approach for the regioselective thiocyanation of various substituted anilines and indoles was designed and the synthesis of the target compds. [i.e., thiocyanic acid 4-aminophenyl ester derivs., thiocyanic acid 1H-indol-3-yl ester derivs.] was achieved under microwave-mediated reaction conditions (green chem.).

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 the solvent has been developed. The major features of the present protocol include the mild reaction conditions, short reaction times, good to excellent yields, and broad ... safety orange shirtsWebAug 14, 2024 · In the presence of tert ‐butyA highly efficient general method for the transition‐metal‐free, direct Csp 2 –H radical thiocyanation of free anilines was … safety orange sleeveless shirtsWebthiocyanation of indoels, pyrroles, anilines and also indolines. This report is one of the two papers which thiocyanated indoline successfully 34. Reaction of (dichloroiodo)benzene/NH 4SCN or Zn(SCN) 2 was used for thiocyanation of anilines 35. Poly(4-diacetoxyiodo)styrene (PDAIS)/NH 4SCN 36 was also used for thiocyanation of indoles and anilines. the yard house naples flWebDec 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 … the yard house pasadenaWebJul 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 … safety orange t shirts wholesaleWebThe 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 … safety orange shirts with logoWebHerein, 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 … the yard house palmdale