Reactivity of α-pinene epoxide in supercritical solvents

被引：25

作者：

Anikeev, V. I. ^{[1
]}

Il'ina, I. V. ^{[2
]}

Volcho, K. P. ^{[2
]}

Yermakova, A. ^{[1
]}

Salakhutdinov, N. F. ^{[2
]}

机构：

[1] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia

[2] Russian Acad Sci, Vorozhtsov Novosibirsk Inst Organ Chem, Siberian Branch, Novosibirsk 630090, Russia

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2010年 / 52卷 / 01期

关键词：

Transformation of alpha-pinene epoxide; Supercritical carbon dioxide and low alcohols; HIGH-TEMPERATURE WATER; THERMAL-ISOMERIZATION; PINANE TERPENOIDS; TRANSFORMATIONS; ALCOHOLS; KINETICS; DEHYDRATION; MECHANISM;

D O I：

10.1016/j.supflu.2009.11.003

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：

Thermal transformations of a-pinene epoxide in composite supercritical solvents that contain CO2, lower alcohols (ethanol, isopropyl alcohol) and water were studied in the temperature range of 387-575 K at pressure 13.5-21.5 MPa. Campholenic aldehyde and carveol were shown to be the main products of alpha-pinene epoxide reactions in supercritical solvents containing water. In the absence of water, thermolysis of alpha-pinene epoxide in supercritical solvent yields campholenic aldehyde and pinocamphone, with their total amount in the reaction mixture attaining 80%. Suggestions were made on the mechanism of alpha-pinene epoxide thermal isomerization depending on acidity of supercritical solvent. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：71 / 75

页数：5

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