Substituted 4H-chromenes were easily prepared by reaction of salicylaldehydes and ethylcyanoacetate in solvent free conditions using potassium exchanged layered zirconium phosphate as catalyst. This method could be employed in the preparation of a wide variety of 4H-chromene models under extremely mild conditions.
Potassium Exchanged Layered Zirconium Phosphate as catalyst in the preparation of 4H-Chromenes
CURINI, Massimo;NOCCHETTI, Morena;ROSATI, Ornelio;
2005
Abstract
Substituted 4H-chromenes were easily prepared by reaction of salicylaldehydes and ethylcyanoacetate in solvent free conditions using potassium exchanged layered zirconium phosphate as catalyst. This method could be employed in the preparation of a wide variety of 4H-chromene models under extremely mild conditions.File in questo prodotto:
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