作者:Brian J. Groendyke、Atanu Modak、Silas P. Cook
DOI:10.1021/acs.joc.9b01979
日期:2019.10.18
catalytic amount of iron(II) triflate, TIPS-protected peroxides bearing primary, secondary, and tertiary C-H sites undergo chemoselective thioetherification of remote C-H bonds with diaryl disulfides. The reaction demonstrates a broad substrate scope and functional group tolerance without the use of any noble metal additives. Mechanistic experiments suggest that the reaction proceeds through 1,5-H atom
亚化学计量的铁介导了常驻甲硅烷基过氧化物指导的未活化脂族CH键的硫醚化作用。暴露于催化量的三氟甲磺酸铁(II)后,带有伯,仲和叔CH位的TIPS保护的过氧化物会通过二芳基二硫化物对远端CH键进行化学选择性硫醚化。该反应证明了广泛的底物范围和官能团耐受性,而无需使用任何贵金属添加剂。机理实验表明,反应是通过铁生成的羟基自由基通过1,5-H原子提取而进行的。