875289-87-5Relevant academic research and scientific papers
α-Selective C(sp3)-H Thio/Selenocyanation of Ketones with Elemental Chalcogen
Li, Jin-Cheng,Gao, Wen-Xia,Liu, Miao-Chang,Zhou, Yun-Bing,Wu, Hua-Yue
, p. 17294 - 17306 (2021/12/02)
A facile method is disclosed for the synthesis of α-thio/selenocyanato ketones through regioselective C-H thio/selenocyanation of ketones. The advantages include the use of easily available starting materials, high efficiency, simple operation, and easy scale-up. Control experiments provide evidence that the reaction proceeded via a radical way, while kinetic isotope effect experiments reveal that the cleavage of the C-H bond serves as the rate-limiting step.
Redox Active Sodium Iodide/Recyclable Heterogeneous Solid Acid: An Efficient Dual Catalytic System for Electrochemically Oxidative α-C?H Thiocyanation and Sulfenylation of Ketones
Liang, Sen,Zeng, Cheng-Chu,Tian, Hong-Yu,Sun, Bao-Guo,Luo, Xu-Gang,Ren, Fa-Zheng
, p. 1444 - 1452 (2017/12/18)
An efficient electrochemically oxidative α-C?H thiocyanation and sulfenylation of ketones has been developed in a simple undivided cell under constant current condition.?The electrochemistry performs using NaI as the redox catalyst and heterogeneous solid salt Amberlyst-15(H) (A-15(H)) as proton catalyst?without the addition of external conductive salts. The protocol proved to be practical since the solid salt could be reused in up to five consecutive gram-scale runs without significant decrease in efficiency. Control experiments and cyclic voltammetry analysis disclose that the reaction proceeds likely via a cascade α-halogenation and subsequent thiocyanation or sulfenylation. (Figure presented.).
