Heterogeneous photocatalytic anaerobic oxidation of alcohols to ketones by Pt-mediated hole oxidation.
Heterogeneous photocatalytic anaerobic oxidation of alcohols to ketones by Pt-mediated hole oxidation.
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DOI：
10.1039/d0cc03325a
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发表时间：
2020-10
影响因子：
4.9
通讯作者：
Danhui Sun;Peihe Li;Xia Wang;Yingying Wang;Jinghui Wang;Yin Wang;Ye Lu;Limei Duan;
中科院分区：
文献类型：
--
作者：
Danhui Sun;Peihe Li;Xia Wang;Yingying Wang;Jinghui Wang;Yin Wang;Ye Lu;Limei Duan;
报道了一种具有光催化厌氧氧化功能的铂纳米簇/石墨碳氮化碳(Pt/g-C3N4)复合固体催化剂，用于醇的高效选择性转化为酮。在室温下，从各种官能化的醇，包括未活化的醇，以良好到优异的产率成功地获得了理想的产品。机理研究表明，该反应可以通过铂介导的空穴氧化引发α-醇自由基中间体，然后通过两电子氧化途径进行。这一策略的优点是为绿色和可持续的有机合成化学提供了一种普遍的方法。
We report a platinum nanocluster/graphitic carbon nitride (Pt/g-C3N4) composite solid catalyst with a photocatalytic anaerobic oxidation function for highly active and selective transformation of alcohols to ketones. The desirable products were successfully obtained in good to excellent yields from various functionalized alcohols at room temperature, including unactivated alcohols. Mechanistic studies indicated that the reaction could proceed through a Pt-mediated hole oxidation initiating an α-alcohol radical intermediate followed by a two-electron oxidation pathway. The merit of this strategy offers a general approach towards green and sustainable organic synthetic chemistry.