期刊
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
卷 89, 期 6, 页码 663-670出版社
CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
DOI: 10.1139/V11-055
关键词
silica supported solid acids; methanesulfonic acid; Bronsted acidity; Pechmann reaction; derivatives of 4-methylcoumarin
A cost-effective and efficient solid Bronsted acid catalyst was synthesized by loading methanesulfonic acid (MSA) on silica and was used for the acid-catalyzed Pechmann reaction to test the catalytic activity and its reusability. Derivatives of 4-methylcoumarin were synthesized in good yields within short reaction times in the presence of environmentally friendly higher n-alkanes as solvents. The regeneration study of the spent catalyst showed satisfactory results.
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