IBX Oxidation of Benzenedimethanols in the Presence of Cucurbit[8]uril  

作　　者：Hang Cong Qiuju Chen Qingxia Geng Zhu Tao Takehiko Yamato 

机构地区：[1]Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province,Guizhou University,Guiyang,Guizhou 550025,China [2]Department of Applied Chemistry,Faculty of Science and Engineering,Saga University,Honjo-machil,Saga 840-8502,Japan

出　　处：《Chinese Journal of Chemistry》2015年第5期545-549,共5页中国化学（英文版）

基　　金：the support of National Natural Science Foundation of China(No.21162003);the International Collaboration Project of Guizhou Province(No.[2011]7003);the Natural Science Foundation of Guizhou Province(No.[2008]75).

摘　　要：The cucurbit[8]uril (Q[8]) mediated oxidation of benzenedimethanols with o-iodoxybenzoic acid (IBX) inaqueous solution has been investigated, and the results reveal the supramolecular catalysis depends on the electronicand geometric structure of substrate. In the cases of o-benzenedimethanol (1a) and m-benzenedimethanol (1b), theIBX oxidation could be obviously enhanced by the addition of Q[8] at different extent. There is no observation ofthe catalytic activity of Q[8] when p-benzenedimethanol (1c) is subjected to the IBX oxidation. The additionamount of Q[8] is discussed herein, and the addition of more than 10% mol catalyst cannot improve the oxidationmuch more. The investigation of host-guest interactions by isothermal titration calorimetry implies the supramolecularcatalysis is related to the formation of complexes between benzenedimethanols and cucurbit[8]uril.

关 键 词：CUCURBITURIL OXIDATION supramolecular catalysis benzenedimethanol o-iodoxybenzoic acid 

分 类 号：O62[理学—有机化学]