A New Dioxazolone for the Synthesis of 1,2‐Aminoalcohols via Iridium(III)‐Catalyzed C(sp
<sup>3</sup>
)−H Amidation
作者:Kevin Antien、Andrea Geraci、Michael Parmentier、Olivier Baudoin
DOI:10.1002/anie.202110019
日期:2021.10.11
3. leads to amide products which can be hydrolyzed under mild conditions. The amidation reaction is mild, general and compatible with both primary C−H bonds of tertiary and secondary alcohols, as well as secondary C−H bonds of cyclic secondary alcohols. This method provides an easy access to free 1,2-aminoalcohols after efficient and mild cleavage of the oxime directing group and activated amide.
邻氨基醇是生物活性分子中广泛存在的结构基序。我们报告了一种含有对硝基苯基二氟甲基的新型二恶唑酮试剂的开发,该试剂 1. 显示出良好的安全性; 2.在肟引导的铱(III)催化的未活化的C(sp 3 )-H键的酰胺化反应中显示出非常高的反应活性; 3.生成酰胺产物,在温和条件下可水解。酰胺化反应温和、普遍,并且与叔醇和仲醇的伯CH键以及环状仲醇的仲CH键相容。该方法在有效且温和地裂解肟导向基团和活化酰胺后,可以轻松获得游离的 1,2-氨基醇。