Electrochemical C–H functionalization and subsequent C–S and C–N bond formation: paired electrosynthesis of 3-amino-2-thiocyanato-α,β-unsaturated carbonyl derivatives mediated by bromide ions
作者:Li-Shuo Kang、Mi-Hai Luo、Chiu Marco Lam、Li-Ming Hu、R. Daniel Little、Cheng-Chu Zeng
DOI:10.1039/c6gc00666c
日期:——
An efficient paired electrosynthesis involving C–H functionalization and subsequent C–S and C–N bond formation has been developed.
已开发出一种效率高的配对电合成方法,涉及C-H官能化以及随后的C-S和C-N键形成。
Hydrogen Peroxide-Mediated Rapid Room Temperature Metal-Free C(sp<sup>2</sup>)-H Thiocyanation of Amino Pyrazoles, Amino Uracils, and Enamines
作者:Danish Ali、Anoop Kumar Panday、Lokman H. Choudhury
DOI:10.1021/acs.joc.0c01738
日期:2020.11.6
aminopyrazoles, aminoisoxazole, aminoisothiazole, amino uracils, and aliphatic enamines has been developed in an aqueous medium using hydrogenperoxide as a benign oxidant and ammonium thiocyanate as a thiocyanating agent. On the otherhand, the reaction of hydrogenperoxide and ammonium thiocyanate followed by one-pot addition of NaOH provides the corresponding disulfides in the case of amino azoles, and
Visible-light-promoted aerobic metal-free aminothiocyanation of activated ketones
作者:Pan-Feng Yuan、Qing-Bao Zhang、Xiao-Ling Jin、Wen-Long Lei、Li-Zhu Wu、Qiang Liu
DOI:10.1039/c8gc02720j
日期:——
A direct, redox-neutral, highly atom-economical and metal-free aerobic method for the synthesis of multi-substituted olefins via simply coupling ammonium thiocyanate with activated ketones is described. A series of multi-substituted olefins could be easily and efficiently obtained in excellent yields by using low-toxicity and inexpensive ammonium thiocyanate as an amine and thiocyanate source, and
A quick and easy access to a series of thiocyanated enaminones and 2‐iminothiazolones using
<scp>PIDA</scp>
under mild conditions
作者:Daiki Matsui、Shinji Tanimori
DOI:10.1002/jhet.4492
日期:2022.9
A series of thiocyanatedenaminones and 2-iminothiazolones have been synthesized usingPIDA as an oxidant with Brønsted acid under the mild reaction conditions starting from the acyclic and cyclic enaminones. Direct synthesis of 2-iminothiazolones have also been achieved by treating alkali solution after thiocyanation in a one-pot manner.