Palladium-Catalysed Oxidation of Bicycle Monoterpenes by Hydrogen Peroxide in Acetonitrile Solutions: A Metal Reoxidant-Free and Environmentally Benign Oxidative Process

被引：21

作者：

de Oliveira, Alexandre Almeida ^{[1
]}

da Silva, Milene Lopes ^{[1
]}

da Silva, Marcio Jose ^{[1
]}

机构：

[1] Univ Fed Vicosa, Dept Chem, BR-36570000 Vicosa, MG, Brazil

来源：

CATALYSIS LETTERS | 2009年 / 130卷 / 3-4期

关键词：

Palladium; Catalytic oxidation; Monoterpenes; Hydrogen peroxide; AEROBIC OXIDATION; ALPHA-PINENE; MOLECULAR-OXYGEN; WACKER OXIDATION; BETA-PINENE; ALCOHOLS; DIOXYGEN; LIMONENE; HYDROCARBONS; TEMPERATURE;

D O I：

10.1007/s10562-009-9970-6

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：

Currently, the oxidative transformations of natural olefins are complicated for competitive reactions such as isomerization, skeletal rearrangements and nucleophilic addition. These concurrent reactions are promoted by metal reoxidant, normally a Lewis acid, and by protic solvent. In this article, the oxidation of terpenes, namely camphene, beta-pinene, alpha-pinene and 3-carene were performed in PdCl2/H2O2/CH3CN system. This metal reoxidant-free system showed highly efficient, especially on camphene and beta-pinene oxidation, which resulted in the selective conversion of these substrates into epoxy-derivates and allylic oxidation products, respectively. Additionally, the effects of the principal reactional parameters such as the peroxide/catalyst and substrate/catalyst molar ratio were also investigated.

引用

页码：424 / 431

页数：8

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