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由二钒取代的磷钨酸盐催化的过氧化物对芳烃的化学和区域选择性直接羟化。

Chemo- and regioselective direct hydroxylation of arenes with hydrogen peroxide catalyzed by a divanadium-substituted phosphotungstate.

机构信息

Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan.

出版信息

Angew Chem Int Ed Engl. 2012 Jul 16;51(29):7275-8. doi: 10.1002/anie.201201605. Epub 2012 Jun 8.

DOI:10.1002/anie.201201605
PMID:22685078
Abstract

Peroxide in, phenol out: The catalyst γ-PW(10)O(38)V(2)(μ-OH)(2) showed high activity in the hydroxylation of various aromatic compounds with aqueous H(2)O(2). The system was regioselective, producing para-phenols from monosubstituted benzene derivatives. Furthermore, alkylarenes with reactive side-chain C sp 3-H bonds could be chemoselectively hydroxylated without significant formation of side-chain oxygenated products.

摘要

过氧化物进,酚类出:催化剂γ-PW(10)O(38)V(2)(μ-OH)(2)在以水合 H(2)O(2)对各种芳香族化合物进行羟基化反应时表现出很高的活性。该体系具有区域选择性,能从单取代苯衍生物中生成对苯二酚。此外,具有反应性侧链 C sp 3-H 键的芳基烷基可以被化学选择性地羟化,而不会显著生成侧链氧化产物。

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