Coupling of thiols and aromatic halides promoted by diboron derived super electron donors
作者:Mario Franco、Emily L. Vargas、Mariola Tortosa、M. Belén Cid
DOI:10.1039/d1cc05294b
日期:——
We have proven that pyridine–boryl complexes can be used as superelectron donors to promote the coupling of thiols and aromatic halides through a SRN1 mechanism. The reaction is efficient for a broad substrate scope, tolerating heterocycles including pyridines, enolizable or reducible functional groups. The method has been applied to intermediates in drug synthesis as well as interesting functionalized
我们已经证明,吡啶-硼基复合物可用作超电子供体,通过 S RN 1 机制促进硫醇和芳族卤化物的偶联。该反应适用于广泛的底物范围,可耐受杂环,包括吡啶、可烯醇化或可还原的官能团。该方法已通过受控和连续的分子内电子转移过程应用于药物合成中的中间体以及有趣的功能化聚硫醚。
Visible-Light-Promoted C–S Cross-Coupling via Intermolecular Charge Transfer
作者:Bin Liu、Chern-Hooi Lim、Garret M. Miyake
DOI:10.1021/jacs.7b07390
日期:2017.10.4
Disclosed is a mild, scalable, visible-light-promotedcross-couplingreaction between thiols and aryl halides for the construction of C-S bonds in the absence of both transition metal and photoredox catalysts. The scope of aryl halides and thiol partners includes over 60 examples and therefore provides an entry point into various aryl thioether building blocks of pharmaceutical interest. Furthermore
申请人:THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
公开号:US20180370911A1
公开(公告)日:2018-12-27
In one aspect, the invention provides a method of promoting a carbon-sulfur bond forming reaction. In certain embodiments, the reaction comprises cross-coupling of a(n) (hetero)aryl halide with a thiol to form the carbon-sulfur bond, wherein the method is promoted by light irradiation in the absence of a photocatalyst. In other embodiments, the cross-coupling reaction can be promoted through visible light irradiation, including sunlight.
Facile synthesis of 1,2-thiobenzonitriles <i>via</i> Cu-catalyzed denitrogenative radical coupling reaction
作者:Yao Zhou、Ya Wang、Yixian Lou、Qiuling Song
DOI:10.1039/c9cc05099j
日期:——
A Cu-catalyzed synthesis of 1,2-thiobenzonitriles via oxidative C–N cleavage of 3-aminoindazoles followed by radical coupling with thiols is developed. A diverse array of 1,2-thiobenzonitriles were obtained in good yields with wide substrate scope. Notably, this is the first example of denitrogenative radical coupling with 3-aminoindazoles.
Activation of Aryl Thiocyanates Followed by Aryne Insertion: Access to 1,2-Thiobenzonitriles
作者:Martin Pawliczek、Lennart K. B. Garve、Daniel B. Werz
DOI:10.1021/acs.orglett.5b00494
日期:2015.4.3
Palladium-catalyzed activation of carbon–sulfur bonds allows aryne insertion into arylthiocyanates to generate new C–SAr and C–CN bonds in one step. The readily available starting materials make this method efficient in generating a variety of 1,2-thiobenzonitriles. By choosing an oxygen atmosphere the yields are increased and side reactions are minimized.