已经开发了一种用于苄基 C(sp 3 )-H 键氧化的有效电化学方法。各种甲基芳烃、甲基杂芳烃和苄基(杂)亚甲基可以在未分割的电池中以中等至极好的收率转化为所需的芳醛和芳酮,使用 O 2作为氧源,高氯酸镥作为电解质。在循环伏安法研究、18 O 标记实验和自由基捕获实验的基础上,提出了一种可能的单电子转移机制用于电氧化反应。
oxidation of benzyl group to ketones at ambient conditions, while usingwater as the sole oxygensource. Water addition reduces the onset potential of anodic C–H oxidation, and produces 1-tetralone with satisfying conversion and excellent ketone to alcohol ratio. Layered MnO2 catalysts (with rich oxygen vacancies) further adjust the water affinity and facilitate the oxidation, leading to a significantly
An improved process for preparing diarylamines from alicyclic ketones, a primary aromatic amine, and a hydrogen acceptor, in the presence of a platinum metal catalyst and an acid promoter.
一种改进的工艺,在铂金属催化剂和酸促进剂存在下,由脂环酮、芳香族伯胺和氢受体制备二芳基胺。
US4431841A
申请人:——
公开号:US4431841A
公开(公告)日:1984-02-14
Selective Electrochemical Oxygenation of Alkylarenes to Carbonyls
作者:Xue Li、Fang Bai、Chaogan Liu、Xiaowei Ma、Chengzhi Gu、Bin Dai
DOI:10.1021/acs.orglett.1c02651
日期:2021.10.1
An efficient electrochemical method for benzylic C(sp3)–H bond oxidation has been developed. A variety of methylarenes, methylheteroarenes, and benzylic (hetero)methylenes could be converted into the desired aryl aldehydes and aryl ketones in moderate to excellent yields in an undivided cell, using O2 as the oxygensource and lutidinium perchlorate as an electrolyte. On the basis of cyclic voltammetry
已经开发了一种用于苄基 C(sp 3 )-H 键氧化的有效电化学方法。各种甲基芳烃、甲基杂芳烃和苄基(杂)亚甲基可以在未分割的电池中以中等至极好的收率转化为所需的芳醛和芳酮,使用 O 2作为氧源,高氯酸镥作为电解质。在循环伏安法研究、18 O 标记实验和自由基捕获实验的基础上,提出了一种可能的单电子转移机制用于电氧化反应。