Stereocontrolled, Divergent, Al(lll)-Catalyzed Coupling of Chiral <i>N</i>-Aryl Epoxy Amines and CO<sub>2</sub>
作者:Yuseop Lee、Jonghoon Choi、Hyunwoo Kim
DOI:10.1021/acs.orglett.8b02186
日期:2018.8.17
achieved between N-aryl epoxy amines and CO2. By using two different cocatalysts, tetrabutylammonium iodide (TBAI) or 4-dimethylaminopyridine (DMAP) together with an Al(III) Lewis acid, cyclic carbonates or oxazolidinones were selectively produced through two distinct reaction pathways, respectively. The proposed reaction mechanism was supported by the stereochemical determination of the products. A
N-芳基环氧胺与CO 2之间发生了发散性偶联反应。通过使用两种不同的助催化剂,碘化四丁基铵碘化物(TBAI)或4-二甲基氨基吡啶(DMAP)以及Al(III)Lewis酸,分别通过两种不同的反应途径选择性地生产环状碳酸酯或恶唑烷酮。所提出的反应机理得到产物的立体化学测定的支持。成功实现了克利奈唑胺的克级生产。