Ni-catalyzed C–S bond cleavage of aryl 2-pyridyl thioethers coupling with alkyl and aryl thiols
作者:Cheng-Yi Wang、Rui Tian、Yong-Ming Zhu
DOI:10.1016/j.tet.2021.132453
日期:2021.10
A nickel-catalyzed C–SPy bond activation reactions to produce a variety of thioethers has been developed. The reaction is promoted by a user-friendly, inexpensive, air and moisture-stable Ni precatalyst. Various aryl 2-pyridyl thioethers and a wide range of alkyl and aryl thiols substrates were tolerated in this process which afforded products in moderate to excellent yields.
Visible light-initiated cross-coupling between thiophenols and aryl halides (X = I and Br) to synthesize aryl thioethers over Pd/ZnIn<sub>2</sub>S<sub>4</sub>
作者:Hurunqing Liu、Xinglin Wang、Zhaohui Li
DOI:10.1039/d2cy01875f
日期:——
coupling between aryl halides and thiols to synthesize aryl thioethers via the formation of a C–S bond is an important reaction. In this manuscript, a Pd/ZnIn2S4 nanocomposite obtained via photoreduction of PdCl2(CH3CN)2 in the presence of ZnIn2S4 was found to be an efficient bifunctional catalyst to realize the coupling reaction between thiophenols and aryl halides (X = Br and I) to yield aryl thioethers
芳基卤化物与硫醇偶联通过形成C-S键合成芳基硫醚是一个重要的反应。在这份手稿中,Pd/ZnIn 2 S 4纳米复合材料通过在 ZnIn 2 S 4存在下光还原 PdCl 2 (CH 3 CN) 2获得被发现是一种有效的双功能催化剂,可实现苯硫酚与芳基卤化物(X = Br 和 I)之间的偶联反应,生成芳基硫醚。一项机制研究表明,该反应涉及光引发的硫基自由基的生成作为重要的中间体。该反应方案可应用于广泛的底物范围,所需硫醚的产率从中等到极佳。该研究为在温和条件下合成芳基硫醚提供了一种简便、绿色和经济的策略。这项工作还突出了基于半导体的光催化在光引发有机合成中的巨大潜力。
Chan–Lam-Type S-Arylation of Thiols with Boronic Acids at Room Temperature
In this work, an efficient CuSO4-catalyzed S-arylation of thiols with aryl and heteroaryl boronic acids at room temperature is established. This catalytic system can an tolerate a wide variety of thiols and arylboronic acids in the presence of only 5 mol % of CuSO4 as the catalyst and inexpensive 1,10-phen center dot H2O as the ligand. Moreover, this catalytic system used environment-friendly solvent (EtOH) and oxidant (oxygen).
Bourgeois, Chemische Berichte, 1891, vol. 24, p. 2264
作者:Bourgeois
DOI:——
日期:——
Forging C–S Bonds through Nickel-Catalyzed Aryl Anhydrides with Thiophenols: Decarbonylation or Decarbonylation Accompanied by Decarboxylation
A nickel-catalyzed decarbonylation or decarbonylation accompanied by decarboxylation cross-coupling reaction of aryl anhydrides with thiophenols as coupling partners was disclosed. This method is promoted by a commercially available, moisture-stable, and inexpensive nickel(II) precatalyst. The process can tolerate a variety of functional groups using ubiquitous aryl anhydrides as cross-coupling precursors