可见光诱导的醇的选择性氧化

在蓝光照射的无金属、 无添加剂的绿色温和条件下, 以2-氯蒽醌为光催化剂, 空气/氧气为氧化剂, 高选择性地将芳族与杂芳族取代的伯醇和仲醇转化为相应的羰基化合物. 实验结果表明, 该催化剂具有较宽的底物适用范围, 为苄基位含氧化合物的合成提供了一条经济、 环保和可持续的新路径, 具有潜在的应用前景.

Visible-light-induced Selective Oxidation of Alcohols

Selective oxidation of alcohols to aldehydes or ketones has been regarded as one of the most important oxidation reactions in the chemical industry. Establishing a green and mild synthesis method is the main purpose of this research. In this work， 2-chloroanthraquinone is used to selectively oxidize primary and secon-dary alcohols to corresponding carbonyl compounds under the driving of visible light， without additional heavy metals and auxiliary additives. Air or oxygen as the oxidant avoids the stoichiometric use of traditional oxidants， reduces waste release and toxicity， and makes the reaction system simple and easy to purify. The results show that the reaction has a moderate to excellent conversion and selectivity， and is suitable for a series of substrates， providing a new economic， environmentally friendly and sustainable way for the synthesis of benzyl oxygenates.