硅胶负载的苯偶姻空气氧化绿色合成苯偶酰

PDF全文下载：2016060599

刘永军，吴洪菊，杜锋

（青岛科技大学化学与分子工程学院，山东青岛266042）

摘要：将苯偶姻均匀负载于硅胶中，通过常规加热由空气直接氧化后可得到相应的苯偶酰。方法简便、后处理容易、产率优良，是由苯偶姻氧化法制备苯偶酰的绿色化路线。对反应温度、硅胶用量和反应时间等影响反应结果的因素进行了较详细的研究，最终在优化条件下，以89%~96%的产率合成了包括苯环、稠环、杂环等14种苯偶酰类化合物。

关键词： 苯偶酰；苯偶姻；硅胶；空气氧化

中图分类号：O 6文献标志码：A

Green Synthesis of Benzils via Silica Gel Supported Oxidation of Benzoins by Air

LIU Yongjun, WU Hongju, DU Feng

(College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: Supported and catalyzed by silica gel, benzoins were oxidized efficiently by air and excellent yields of benzils were prepared. The reaction process is solventfree and environmentally benign. In addition, the silica gel is recovered and can be reused conveniently，thus affording a green synthesis of benzoils. Both the influences of the reaction temperature and the amounts of silica gel were investigated. Fourteen examples, including heterocyclic and polycyclic benzil, were obtained in 89%—96% isolated yields.

Key words: benzoins; benzils; silica gel; aerobic oxidation

 收稿日期：   2015-07-15

基金项目：山东省优秀中青年科学家科研奖励基金项目（BS2011CL019）.

作者简介：刘永军(1971—)，男，副教授.

文章编号：16726987（2016）06059904；DOI：10.16351/j.16726987.2016.06.002