Copper- and Cobalt-Catalyzed Direct Coupling of sp<sup>3</sup> α-Carbon of Alcohols with Alkenes and Hydroperoxides
作者:Jun-Kee Cheng、Teck-Peng Loh
DOI:10.1021/ja510635k
日期:2015.1.14
A zerovalent copper- and cobalt-catalyzed direct coupling of the sp(3) α-carbon of alcohols with alkenes and hydroperoxides was developed in which the hydroperoxides acted as radical initiator and then coupling partner. 1,3-Enynes and vinylarenes underwent alkylation-peroxidation to give β-peroxy alcohols and β-hydroxyketones correspondingly with excellent functional group tolerance. The resulting
Electrochemical‐induced 1,3‐oxohydroxylation of arylcyclopropanes
作者:Xuejin Huang、Jianhua Cai、Ye Zheng、Chunlan Song、Jiakun Li
DOI:10.1002/adsc.202301343
日期:2024.1.30
Herein, we present a method for electrochemical-induced 1,3-oxohydroxylation of arylcyclopropanes with H2O as the green oxygen source. This transformation offers a regioselective route to highly functionalized β-hydroxy ketones under oxidant- and metal-free conditions. Notably, this electrochemical approach features simple operation, good regioselectivity, high functional group tolerance, and easy
在此,我们提出了一种以 H 2 O 作为绿色氧源电化学诱导芳基环丙烷 1,3-氧代羟基化的方法。这种转化为在无氧化剂和无金属条件下制备高度功能化的β-羟基酮提供了一条区域选择性途径。值得注意的是,该电化学方法具有操作简单、区域选择性好、官能团耐受性高、产物易于衍生化等特点。机理研究提供了确凿的证据,证明 1,3-二醇是该反应中的关键中间体,导致观察到的区域选择性。