Ketone Synthesis by Direct, Orthogonal Chemoselective Hydroacylation of Alkenes with Amides: Use of Alkenes as Surrogates of Alkyl Carbanions
作者:Hui Geng、Pei‐Qiang Huang
DOI:10.1002/cjoc.201900252
日期:2019.8
and direct transformation of carboxamides are two exciting areas that have attracted considerable attention in recent years. We report herein that secondary amides, the least reactive derivatives of carbonyl compounds, upon activated with triflic anhydride, can serve as effective hydroacylating reagents in partner with alkenes to yield ketones at ambient temperature. The method was applied to the one‐step
烯烃的直接官能化和羧酰胺的直接转化是近年来令人瞩目的两个令人兴奋的领域。我们在此报道,仲酰胺,即羰基化合物的反应性最低的衍生物,在用三氟甲磺酸酐活化后,可以与烯烃一起作为有效的氢酰化试剂,在环境温度下产生酮。该方法已用于外消旋二氢芳基羟色酮的一步合成。在这种方法中,烯烃用作有机金属试剂的替代物,从而可以进行正交的化学选择性反应。许多烯烃(如camp烯和降冰片烯)的现成性允许一步合成酮,而传统方法则需要几个步骤。