Practical bromination of arylhydroxylamines with SOBr2 towards ortho-bromo-anilides
作者:Yuanbo Du、Zhenguo Xi、Lirong Guo、Haifeng Lu、Lei Feng、Hongyin Gao
DOI:10.1016/j.tetlet.2021.153074
日期:2021.5
thionyl bromide is demonstrated in this work. Mild reaction conditions and broad scope of substrates ranging from heterocyclic structures to pharmaceutics-potential motifs are used in the reactions of this paper. Efficient bromination of ortho CH bonds of the aryhydroxylamines has been achieved. Ortho-bromoanilide products were obtained in good to excellent yields, and model scaled-up reactions of this
这项工作证明了一种从容易获得的芳羟胺和亚硫酰溴合成邻溴代苯胺的简便方法。在本文的反应中使用了温和的反应条件和从杂环结构到药物潜在基序的广泛底物范围。已经实现了对羟基胺的邻位C H键的有效溴化。以高至极好的收率获得了邻溴代苯胺产品,并且在这项工作中显示了这种合成方法的模型放大反应。