钒基催化剂催化苯羟基化制苯酚反应机理  

Reaction mechanism of hydroxylation of benzene to phenol catalyzed by vanadium-based catalysts

作　　者：李贵贤[1,2] 李金莲 邵婷娜 李晗旭 田涛 董鹏 LI Guixian;LI Jinlian;SHAO Tingna;LI Hanxu;TIAN Tao;DONG Peng(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,Gansu,China;Gansu Provincial Key Laboratory of Low Carbon Energy and Chemical Industry,Lanzhou 730050,Gansu,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]甘肃省低碳能源与化工重点实验室,甘肃兰州730050

出　　处：《精细化工》2024年第2期257-268,329,共13页Fine Chemicals

摘　　要：苯羟基化制苯酚是C—H键向C—O键转化及富有挑战性的课题之一。该文论述了钒基催化剂催化苯羟基化制苯酚反应机理的研究进展。以钒活性中心为主线,着重从自由基、非自由基和双催化活性机理进行了详细介绍,同时分析了双催化活性中心催化剂高效催化的本质和重要性。提出此类催化体系及催化机理能够解决苯环上C—H键难活化和苯酚的深度氧化等问题,是经济与安全并存的苯酚合成方法,依托已有的催化反应机理,开发更稳定且高性能的催化剂,以促进烃类有机化合物资源利用的原始创新。Hydroxylation of benzene to phenol is one of the challenging topics for the transition from C-H bonds to C-O bonds.In this review,the research progress on the reaction mechanism of hydroxylation of benzene catalyzed by vanadium-based catalysts to phenol was discussed.Taking vanadium activity center as main line,free radical mechanism,non-radical mechanism and dual-catalysis activity mechanism were introduced in detail,while the nature of high efficiency of such catalysts and the importance of catalytic microenvironment were analyzed.It was pointed out that such catalytic systems and catalytic mechanisms could provide theoretical guidance for solving problems such as difficult activation of C-H bonds on benzene ring and deep oxidation of phenol.Therefore,it should focus on economic and safe phenol synthesis methods,and develop more stable and high-performance catalysts relying on the existing catalytic reaction mechanism to promote the original innovation of abundant hydrocarbon organic compound resource utilization.

关 键 词：苯 苯酚 羟基化 反应机理 钒基催化剂 

分 类 号：O643.36[理学—物理化学] O625.312[理学—化学]