A Stereoconvergent Cyclopropanation Reaction of Styrenes
作者:Ana M. del Hoyo、Ana G. Herraiz、Marcos G. Suero
DOI:10.1002/anie.201610924
日期:2017.2
The first stereoconvergent cyclopropanation reaction by means of photoredox catalysis using diiodomethane as the methylene source is described. This transformation exhibits broad functional group tolerance and it is characterized by an excellent stereocontrol en route to trans‐cyclopropanes regardless of whether E‐ or Z‐styrene substrates were utilized.
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。