AN EFFICIENT AND GREEN PROTOCOL FOR THE SYNTHESIS OF DIHYDROPYRANO [2,3-C] PYRAZOLES IN AQUEOUS MEDIUM USING THIAMINE HYDROCHLORIDE AS A CATALYST

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AN EFFICIENT AND GREEN PROTOCOL FOR THE SYNTHESIS OF DIHYDROPYRANO [2,3-C] PYRAZOLES IN AQUEOUS MEDIUM USING THIAMINE HYDROCHLORIDE AS A CATALYST

A green and expedient approach for the synthesis of dihydropyrano[2,3-c] pyrazoles via four-component reaction of ethyl acetoacetate, hydrazine hydrate, aromatic aldehydes and malononitrile at room temperature under ultrasound irradiation is described. The reaction has been catalyzed by thiamine hyd...

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Detalles Bibliográficos
Autores principales:	NIKAM,MUKESH D, MAHAJAN,PRAVINS, CHATE,ASHA V, DABHADE,SANJAYK, GILL,CHARANSINGHH
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2015
Materias:	Multicomponent reaction Dihydropyrano[2,3-c]pyrazoles Green chemistry Aqueous medium Ultrasound irradiation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072015000100016
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

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