Visible-Light-Mediated Synthesis of Unsymmetrical Diaryl Sulfides via Oxidative Coupling of Arylhydrazine with Thiol
作者:Golam Kibriya、Susmita Mondal、Alakananda Hajra
DOI:10.1021/acs.orglett.8b03549
日期:2018.12.7
A metal-free visible-light-promoted oxidative coupling between thiols and arylhydrazines has been developed to afford diaryl sulfides using a catalytic amount of rose bengal as photocatalyst under aerobic conditions. A library of unsymmetrical diaryl sulfides with broad functionalities was synthesized in good yields at room temperature. The present methodology is also applicable to benzo[ d]thiazole-2-thiols
Electrochemically Promoted Nickel-Catalyzed Carbon–Sulfur Bond Formation
作者:Yang Wang、Lingling Deng、Xiaochen Wang、Zhengguang Wu、Yi Wang、Yi Pan
DOI:10.1021/acscatal.8b04633
日期:2019.3.1
This work describes a nickel-catalyzed Ullmann-type thiolation of aryl iodidesunder mild electrochemical conditions. The simple undivided cell with graphene/nickel foam electrode setups offers excellent substrate tolerance, affording aryl and alkyl sulfides in good chemical yields. Furthermore, the mechanism for this electrochemical cross-coupling reaction has been investigated by cyclic voltammetry
Zinc-Mediated Palladium-Catalyzed Formation of Carbon−Sulfur Bonds
作者:Chad C. Eichman、James P. Stambuli
DOI:10.1021/jo900385d
日期:2009.5.15
aryl and alkyl thiols with aryl bromides in high yields. The addition of zinc chloride to a palladium catalyst system that reportedly failed to promote sulfide formation allows this once ineffective catalyst system to provide the sulfide product in good yield. This paper describes a high-yielding and general monodentate phosphine-ligated palladium catalyst for biaryl and alkyl aryl sulfide formation
An efficient iron-catalyzed S-arylation of aryl and alkylthiols with aryl halides in the presence of water under aerobic conditions
作者:K.S. Sindhu、Amrutha P. Thankachan、Anns Maria Thomas、Gopinathan Anilkumar
DOI:10.1016/j.tetlet.2015.06.087
日期:2015.8
TBAB was employed as a catalyst for the coupling reactions of aryl halides with aryl and alkyl thiols in water under aerobic conditions. The versatility, low cost, and environmental friendliness, in combination with high yields, makes the procedure noteworthy. This protocol offers a simple and efficient thioetherification method for aryl halides.
在这项研究中,环境友好的FeCl 3 ·6H 2 O / 1-脯氨酸在TBAB存在下被用作有氧条件下水中芳基卤化物与芳基和烷基硫醇的偶联反应的催化剂。多功能性,低成本和环境友好性,再加上高产量,使该过程值得关注。该协议为芳基卤化物提供了一种简单有效的硫醚化方法。