A low-cost electrochemical thio- and selenocyanation strategy for electron-rich arenes under catalyst- and oxidant-free conditions
作者:Xing Zhang、Chenguang Wang、Hong Jiang、Linhao Sun
DOI:10.1039/c8ra04407d
日期:——
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 without the use of any catalyst or oxidant.
Regioselctive Thiocyanation of Aromatic and Heteroaromatic Compounds Using a Novel Bronsted Acidic Ionic Liquid
作者:Sobhan Rezayati、Fatemeh Sheikholeslami-Farahani、Zinatossadat Hossaini、Rahimeh Hajinasiri、Saeid Abad
DOI:10.2174/1386207319666160709191851
日期:2016.11.14
Brønsted acidic ionic liquid thiocyanation agent and highlyefficient heterogeneous catalytic is described. This 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
描述了一种方便的程序,用于制备1-(1-丙磺酸基)-3-甲基咪唑鎓硫氰酸盐作为新型的布朗斯台德酸性离子液体硫氰化剂和高效的多相催化剂。该催化剂用于在温和的H2O2和EtOH:H2O(1:1 v / v)的氧化剂存在下对吲哚,苯胺,吡咯及其衍生物(芳族和杂芳族有机化合物)进行区域选择性硫氰化。这些反应在温和且简单的条件下进行,从而以高产率和短反应时间提供区域选择性产物。
An Efficient Selectfluor-Mediated Oxidative Thio- and Selenocyanation of Diversely Substituted Indoles and Carbazoles
作者:Rodrigo Abonia、Luisa F. Gutierrez、Angela T. Zwarycz、Sebastián Correa Smits、Kenneth K. Laali
DOI:10.1155/2019/1459681
日期:2019.1.2
A facile Selectfluor-mediated oxidative method for direct introduction of SCN and SeCN groups into diversely substituted indoles and carbazoles is described, by employing readily available thiocyanate and selenocyanate salts, and the scope of the method is underscored by providing 24 examples. The feasibility to sequentially introduce SCN followed by SeCN on a carbazole framework and to synthesize the