Coumarins Preparation by Pechmann Reaction Under Ultrasound Irradiation. Synthesis of Hymecromone as Insecticide Intermediate

Hymecromone, an important insecticide intermediate, were synthesized under solvent-free conditions by Pechmann reaction upon ultrasound irradiation in the presence of acid zeolites possessing different structural features. This methodology offers significant improvements for the synthesis of coumari...

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Bibliographic Details
Published in:Catalysis letters 2009-03, Vol.128 (3-4), p.318-322
Main Authors: Gutiérrez-Sánchez, C, Calvino-Casilda, V, Pérez-Mayoral, E, Martín-Aranda, R. M, López-Peinado, A. J, Bejblová, M, Čejka, J
Format: Article
Language:English
Subjects:
Catalysis
Chemical synthesis
Chemistry
Chemistry and Materials Science
Exact sciences and technology
General and physical chemistry
Industrial Chemistry/Chemical Engineering
Insecticides
Ion-exchange
Irradiation
Organometallic Chemistry
Physical Chemistry
Solvents
Surface physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Ultrasonic imaging
Ultrasound
Zeolites
Zeolites: preparations and properties
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Summary:Hymecromone, an important insecticide intermediate, were synthesized under solvent-free conditions by Pechmann reaction upon ultrasound irradiation in the presence of acid zeolites possessing different structural features. This methodology offers significant improvements for the synthesis of coumarins with regards to yield of product, simplicity in operation, and avoiding toxic catalysts and solvents.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-008-9709-9