C(
<i>sp</i>
<sup>3</sup>
)−C(
<i>sp</i>
<sup>3</sup>
) Bond Formation
<i>via</i>
Electrochemical Alkoxylation and Subsequent Lewis Acid Promoted Reactions
作者:Enol López、Carlo Melis、Raúl Martín、Alessia Petti、Antonio Hoz、Ángel Díaz‐Ortíz、Adrian P. Dobbs、Kevin Lam、Jesús Alcázar
DOI:10.1002/adsc.202100749
日期:2021.10.5
methodology for the C(sp3)−C(sp3) functionalisation of saturated N-heterocyclic systems is disclosed. First, aminal derivatives are generated through the anodic oxidation of readily accessible carboxylic acids. Then, in the presence of BF3 ⋅ OEt2, iminium ions are unmasked and rapidly alkylated by organozinc reagents under flow conditions. Secondary, tertiary and quaternary carbon centers have been successfully
公开了用于饱和N-杂环系统的C( sp 3 )-C( sp 3 )官能化的两步无过渡金属方法。首先,氨基衍生物是通过容易获得的羧酸的阳极氧化产生的。然后,在 BF 3 ⋅ OEt 2存在下,亚胺离子在流动条件下被有机锌试剂暴露并迅速烷基化。使用这种方法已经成功地组装了二级、三级和四级碳中心。这种方法与药物发现特别相关,因为它增加了 C( sp 3)-在分子框架内迅速发挥功能。作为概念证明,我们的方法应用于肽和 API 的衍生化。