One-pot synthesis of phenols from aromatic aldehydes by Baeyer-Villiger oxidation with H2O2 using water-tolerant Lewis acids in molecular sieves

被引：80

作者：

Corma, A ^{[1
]}

Fornés, V ^{[1
]}

Iborra, S ^{[1
]}

Mifsud, M ^{[1
]}

Renz, M ^{[1
]}

机构：

[1] Univ Politecn Valencia, CSIC, UPV, Inst Tecnol Quim, Valencia 46022, Spain

来源：

JOURNAL OF CATALYSIS | 2004年 / 221卷 / 01期

关键词：

oxidation aromatic aldehydes; Baeyer-Villiger oxidation aldehydes; Baeyer-Villiger oxidation with hydrogen peroxide; Sn-Beta Lewis acid catalyst;

D O I：

10.1016/S0021-9517(03)00291-4

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：

Sn-Beta zeolite is employed as catalyst in the Baeyer-Villiger oxidation of aromatic aldehydes. Aldehydes involving alkoxy substituents are oxidized to the corresponding formate ester which are hydrolyzed to the corresponding phenols. Choosing the adequate reaction conditions the main product can be preselected. Dioxane solvent and a hydrogen peroxide deficit give predominantly the ester whereas ethanol solvent or aqueous acetonitrile favor the phenol product. Double bonds in alkyl side chains do not react and the corresponding unsaturated phenols are obtained with very high chemoselectivity. Bronsted sites are active for the Baeyer-Villiger oxidation of aromatic aldehydes with H2O2 provided that the molecule does not contain olefinic groups. In any case, the selectivity of Bronsted acid zeolites is lower than that of Sn-Beta. (C) 2003 Elsevier Inc. All rights reserved.

引用

页码：67 / 76

页数：10

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