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.