Efficient Synthesis of N-Carbamoylpropargylamines from α-Amido Sulfones Using Dimethylalkynylaluminum Reagents
作者:Sang-Hyeup Lee、Ji-Hoon Lee
DOI:10.1055/s-0041-1737763
日期:2022.5
reagents derived from terminal alkynes and trimethylaluminum underwent addition to various N-activated α-amido sulfones to produce the corresponding alkynylamines in moderate to excellent yields. The optimized protocol avoids the preparation and isolation of relatively unstable N-activated imines that are generated in situ from their corresponding, stable, N-activated α-amido sulfones. This methodology
衍生自末端炔烃和三甲基铝的二甲基炔基铝试剂经过加成到各种N活化的 α-酰胺基砜中,以中等至优异的产率产生相应的炔基胺。优化后的协议避免了相对不稳定的N活化亚胺的制备和分离,这些亚胺是从其相应的、稳定的N活化 α-酰胺砜原位产生的。该方法提供了获得广泛的含有N-氨基甲酰基、-酰基和-磺酰基部分的炔基胺的途径。