Transition‐Metal Free Electrophilic Aminations of Polyfunctional<i>O</i>‐2,4,6‐Trimethylbenzoyl Hydroxylamines with Zinc and Magnesium Organometallics
作者:Alisa S. Sunagatullina、Andreas Hess、Alexander Kremsmair、Yifan Li、Yi‐Hung Chen、Paul Knochel
DOI:10.1002/anie.202304445
日期:2023.7.24
Various zinc and magnesium reagents were successfully aminated using O-2,4,6-trimethylbenzoyl hydroxylamines (O-TBHAs) leading to the corresponding tertiary alkyl amines in 52–99 % yield without any additional transition-metal catalyst. This reaction was extended to the preparation of optically enriched amines (up to 88 % ee) starting from enantioenriched secondary alkylmagnesium reagents of the type
使用O -2,4,6-三甲基苯甲酰羟胺 (O-TBHA)成功胺化各种锌和镁试剂,在没有任何额外过渡金属催化剂的情况下,以 52-99% 的产率生成相应的叔烷基胺。该反应扩展到以s -AlkylMgCH 2 SiMe 3类型的对映体富集仲烷基镁试剂为原料制备光学富集胺(高达 88% ee ) 。