16078-85-6Relevant academic research and scientific papers
Determination of the promoting effect of nano SiO2 and H3PO4@nano SiO2 in the thiocyanation of N-containing aromatic compounds under solvent-free conditions
Nikoofar, Kobra,Gorji, Samareh
, p. 178 - 186 (2015)
Silica nanoparticles/ammonium thiocyanate (nano SiO2/NH4SCN) and H3PO4 embedded on nano silica (H3PO4@nano SiO2) in the presence of NH4SCN were found to be effective systems for the thiocyanation of some arylamines and indoles to afford their corresponding thiocyanated adducts at 70C under solventfree conditions. The recovery and reusability of nano SiO2 as a prompting system have been investigated. A simple procedure for the synthesis of H3PO4@nano SiO2 has also been represented. In addition, a plausible mechanism of thiocyanation has also been suggested.
2,2-Azobenzothiazole as a new recyclable oxidant for heterogeneous thiocyanation of aromatic compounds with ammonium thiocyanate
Iranpoor, Nasser,Firouzabadi, Habib,Shahin, Rezvan,Khalili, Dariush
, p. 2040 - 2047 (2012)
A simple synthesis of thiocyanated aromatics has been developed by using heteroaromatic azo compounds such as 2,2′-azobenzothiazole as a mild and heterogeneous oxidant. The reactions proceed at room temperature with good regioselectivity. The hydrazine by
A direct synthesis of aryl thiocyanates using cerium(IV) ammonium nitrate
Nair,George,Nair,Panicker
, p. 1195 - 1196 (1999)
An easy method for the conversion of arenes to aryl thiocyanates in high yields as illustrated by the formation of 3-thiocyanato indole from indole in quantitative yield is described.
Green and Efficient Method for Thiocyanation of Aromatic and Heteroaromatic Compounds Using Cross-linked Poly (4-Vinylpyridine) Supported Thiocyanate Ion as Versatile Reagent and Oxone as Mild Oxidant
Ali, Mohammad,Zarchi, Karimi,Banihashemi
, p. 1378 - 1390 (2014)
A green and efficient regioselective thiocyanation of indoles, anilines and pyrrole has been achieved via a simple protocol using cross-linked poly (4-vinylpyridine) supported thiocyanate ion, [P4-VP]SCN, as a versatile polymeric reagent and ox
Thiocyanation of aromatic and heteroaromatic compounds using ammonium thiocyanate and I2O5
Wu, Jing,Wu, Guaili,Wu, Longmin
, p. 2367 - 2373 (2008)
Thiocyanation of indoles, pyrrols, and anilines has been efficiently achieved using ammonium thiocyanate as a thiocyanation agent and I2O5 as an oxidant. Copyright Taylor & Francis Group, LLC.
Visible-light-enabled regioselective aerobic oxidative C(sp2)-H thiocyanation of aromatic compounds by Eosin-Y photocatalyst
Yi, Bing,Wen, Xiaoyong,Yi, Ziqi,Xie, Yanjun,Wang, Qiang,Tan, Jian-Ping
, (2020)
Herein, visible-light-enabled regioselective aerobic oxidative C(sp2)-H thiocyanation of aromatic compounds has been developed by employing eosin-Y as effective photocatalyst and oxygen as the green terminal oxidant. This process featured green, efficient and operationally simple. Furthermore, the practicality and utility of this protocol was demonstrated by the gram scale synthesis. Mechanistic studies suggested that this reaction was realized via a photoredox radical pathway.
Electrochemical thiocyanation of nitrogen-containing aromatic and heteroaromatic compounds
Fotouhi, Lida,Nikoofar, Kobra
, p. 2903 - 2905 (2013)
An efficient and convenient anodic thiocyanation of nitrogen-containing (hetero)aromatic compounds is described under constant current conditions in the presence of ammonium thiocyanate in methanol at room temperature. We have examined the in situ thiocya
ARS-TiO2 photocatalyzed direct functionalization of sp2 C-H bonds toward thiocyanation and cyclization reactions under visible light
Hosseini-Sarvari, Mona,Hosseinpour, Zeinab,Koohgard, Mehdi,Sarvestani, Abdollah Masoudi
, p. 1401 - 1407 (2020/03/26)
An ARS-TiO2 photocatalyst has been prepared, by a simple method through stirring a mixture of ARS and TiO2 at room temperature in the dark, to extend the photocatalytic response of titanium dioxide toward the visible light spectrum. The synergic effect of ARS and TiO2 in the photocatalyst system has catalyzed direct C-H functionalization of sp2 C-H bonds toward thiocyanation and cyclization reactions. Several aromatic and heteroaromatic scaffolds (2-phenylamino-thiazole, phenol, aniline, indole and pyrrole derivatives) were treated with the thiocyanate anion at room temperature. Herein, the first report on thiocyanation of phenol and synthesis of 2-aminobenzothiazole derivatives under visible light is presented.
Electrochemical and direct C-H methylthiolation of electron-rich aromatics
Wu, Yaxing,Ding, Hongliang,Zhao, Ming,Ni, Zhong-Hai,Cao, Jing-Pei
supporting information, p. 4906 - 4911 (2020/08/25)
The electrochemical-induced C-H methylthiolation of electron-rich aromatics has been accomplished via a three component cross-coupling strategy. Potassium thiocyanate (KSCN) as both the supporting electrolyte and sulfur source and methanol as the methylation reagent are used. This protocol is versatile for various (hetero)aromatic compounds such as aniline, anisole and indole. The reaction proceeds under mild conditions without any metal catalyst, exogenous oxidant and highly toxic sulfur reagent. Importantly, such an electrochemical-induced methylthiolated reaction could be easily scaled up with good efficiency.
A low-cost electrochemical thio- and selenocyanation strategy for electron-rich arenes under catalyst- and oxidant-free conditions
Zhang, Xing,Wang, Chenguang,Jiang, Hong,Sun, Linhao
, p. 22042 - 22045 (2018/06/26)
A low-cost and efficient thio- and selenocyanation strategy for electron-rich arenes has been developed under constant-current electrolytic conditions in an undivided cell. This strategy is versatile for various (hetero)aromatic compounds such as indole, pyrrole, aniline and anisole under mild conditions without any catalyst or oxidant. Readily available salts NH4SCN and KSeCN are employed respectively as the sole reagent.
