作者:Ganesh Chandra Nandi、V. R. Padma Priya、C. P. Irfana Jesin
DOI:10.1055/a-1921-0875
日期:2023.4
A transition-metal-free novel route to access N-(o-halo)arylsulfoximines/sulfonimidamides is achieved by the reaction of sulfoximine/sulfonimidamide, aryne precursor, and CCl4/CBr4 in the presence of KF/18-crown-6. The in situ generated benzyne intermediate (from silyl aryl triflate) reacts with the nucleophile (sulfoximine/sulfonimidamide) and halide source (CCl4/CBr4) to yield the product in moderate
在 KF/18-crown-6 存在下,通过亚砜亚胺/亚磺酰亚胺、芳烃前体和 CCl 4 /CBr 4的反应,实现了一种获得N -( o -halo) 芳基亚砜亚胺/亚磺酰亚胺的无过渡金属新途径. 原位产生的苯中间体(来自三氟甲磺酸甲硅烷基芳基酯)与亲核试剂(亚砜亚胺/磺酰亚胺)和卤化物源(CCl 4 /CBr 4)反应,以中等至良好的产率产生产物。该协议展示了广泛的底物范围。由不对称芳烃前体形成的区域异构体通过柱色谱有效分离。