325809-14-1Relevant academic research and scientific papers
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.).
Synthesis of α-sulfenyl monoketones: Via a metal-free oxidative cross dehydrogenative coupling (CDC) reaction
Varun, Begur Vasanthkumar,Gadde, Karthik,Prabhu, Kandikere Ramaiah
supporting information, p. 7665 - 7670 (2016/08/24)
α-Sulfenyl ketones are potential precursors which find a variety of applications in organic synthesis. Their typical synthesis requires pre-functionalized starting materials and two to three step synthetic sequences. In addition, the selective pre-functionalization of unsymmetrical ketones is a challenge, which limits the synthesis of the desired sulfenylated ketones. To overcome these disadvantages, a metal-free, convenient one-step strategy for synthesizing α-sulfenyl ketones at ambient temperature via a cross-dehydrogenative coupling (CDC) strategy has been developed with a broad substrate scope. Therefore, this CDC strategy for C-S bond formation is attractive and may find wide applications in organic synthesis.
