promoting systems. The reported methodologies were compared in terms of efficiency, diastereoselectivity, and toxicity, both showing advantages with respect to the current methodologies. The relative configurations of each of the obtained propargylamines, previously unknown in the literature, were assigned by comparison of the 1H NMR experimental chemical shifts with those theoretically predicted via the
本文报道了通过
铜促进的脂肪族和
芳香族醛与
苯乙炔和 ( R )-(+)-苯
乙胺的A 3偶联反应立体选择性合成几种仲
炔丙胺。本研究研究了两种不同的合成方法,涉及 CuSO 4 /NaI 和 CeCl 3 ·7H 2 O/CuI 促进系统。报告的方法在效率、非对映选择性和毒性方面进行了比较,两者均显示出相对于当前方法的优势。通过比较1H NMR 实验
化学位移与通过 DFT-GIAO 方法理论预测的
化学位移。