Metal-Free Aerobic Oxidative C-O Coupling of C(<i>sp</i>
<sup>3</sup>
)-H with Carboxylic Acids Catalyzed by DDQ and <i>tert</i>
-Butyl Nitrite
作者:Decheng Pan、Zilong Pan、Zhiming Hu、Meichao Li、Xinquan Hu、Liqun Jin、Nan Sun、Baoxiang Hu、Zhenlu Shen
DOI:10.1002/ejoc.201900773
日期:2019.9.8
metal‐free aerobic oxidative cross‐coupling reaction between a benzylic C(sp3)–H bond and a carboxylic acid catalyzed by 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone and tert‐butyl nitrite has been developed. This protocol provides a mild and efficient route to obtain diarylmethanol esters and phthalides. It can be regarded as a typical example of green chemistry in oxidative C–O coupling.
苄基C(sp 3)-H键与2,3-二氯-5,6-二氰基-1,4-苯醌和亚硝酸叔丁酯催化的羧酸之间的无金属好氧氧化交叉偶联反应具有已开发。该方案为获得二芳基甲醇酯和邻苯二甲酸酯提供了温和而有效的途径。可以将其视为氧化C–O耦合中绿色化学的典型示例。