straightforward and atom-economical process for the synthesis of substituted nitrogen-containing alkenes. Herein we report a novel protocol that involves for the first time solvent-free conditions (SolFC) and the use of an organic base, namely 2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine (BEMP) to stereoselectively promote the process. The scope of this metal-free protocol
炔烃的加
氢胺化是合成取代的含氮烯烃的直接且原子经济的方法。在这里,我们报告了一种新颖的方案,该方案首次涉及无溶剂条件(SolFC)和有机碱的使用,即2-叔丁基亚
氨基-2-二乙
氨基-1,3-二甲基过氢-1,3,2-二氮杂
磷(B
EMP)立体选择性地促进了这一过程。通过广泛的研究评估了该无
金属方案的范围,得出的结论是,在大多数情况下,产率和立体选择性值非常高(14个实例,产率高达95%,Z / E高达99% )。