Rapid transformation of benzylic alcohols to aldehyde in the presence of cucurbit[8]uril

被引：29

作者：

Cong Hang ^{[1
,2
]}

Zhao Fang-fang ^{[1
]}

Zhang Jian-xin ^{[3
]}

Zeng Xi ^{[2
]}

Tao Zhu ^{[1
,2
]}

Xue Sai-feng ^{[2
]}

Zhu Qian-jiang ^{[2
]}

机构：

[1] Guizhou Univ, Inst Appl Chem, Guiyang 550025, Peoples R China

[2] Guizhou Univ, Key Lab Macrocycl & Supramol Chem Guizhou Prov, Guiyang 550025, Peoples R China

[3] Key Lab Chem Nat Prod Guizhou Prov, Guiyang 550002, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2009年 / 11卷 / 03期

关键词：

Cucurbituril; Catalysis; Veratryl alcohol; IBX; Supramolecular; CUCURBITURIL; OXIDATION; CYCLODEXTRIN; ACIDS;

D O I：

10.1016/j.catcom.2009.09.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Heterogeneous catalytic oxidation of veratryl alcohol to veratryaldehyde with o-iodoxybenzoic acid (IBX) in the presence of cucurbit[8]uril (Q[8]) has been investigated. The evidence of oxidation kinetics affirmed the supramolecular catalysis of Q[8]. Experimental investigation of addition of catalyst and the initial pH suggested that the optimum proportion of reagents is a 0.1:1:1 M ratio (Q[8]:alcohol: IBX) and neutral pH value. The screening of macrocycles, such as cucurbiturils and cyclodextrins, indicated the obvious dependence of catalytic activity on the cavity size and chemical structure of catalysts. The Q[8]catalytic transformation of benzyl alcohol and 3-methoxybenzyl alcohol exhibited a very satisfying conversion. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：167 / 170

页数：4

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