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HERO ID
7617888
Reference Type
Journal Article
Title
A COMPARISON OF REACTION-KINETICS OBSERVED UNDER MICROWAVE IRRADIATION AND CONVENTIONAL HEATING
Author(s)
Raner, KD; Strauss, CR; Vyskoc, F; Mokbel, L; ,
Year
1993
Is Peer Reviewed?
Yes
Journal
Journal of Organic Chemistry
ISSN:
0022-3263
EISSN:
1520-6904
Publisher
AMER CHEMICAL SOC
Location
WASHINGTON
Volume
58
Issue
4
Page Numbers
950-953
Language
English
DOI
10.1021/jo00056a031
Web of Science Id
WOS:A1993KM22900031
Abstract
Kinetic studies were made of two reactions under microwave heating and under conventional heating. The reactions were the acid-catalyzed isomerization of carvone to carvacrol and the Diels-Alder reaction between anthracene and diethyl maleate. It was found that the rates of these reactions were the same, within experimental error, under either mode of heating at the same temperature. The activation parameters for the isomerization were measured as E(double-dagger) = 89 +/- 3 kJ/mol, In A = 21.5 +/- 0.8 (oil bath); and E(double-dagger) = 83 +/- 5 kJ/mol, In A = 19.7 +/- 1.6 (microwave). The activation parameters for the Diels-Alder reaction were E(double-dagger) = 94 +/- 10 kJ/mol, In A = 15.6 +/- 2.3 (oil bath); and E* = 88 +/- 8 kJ/mol, In A = 13.9 +/- 2.0 (microwave).
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