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Chemoselective preparation of 1,1-diacetates from aldehydes, mediated by a Keggin heteropolyacid under solvent free conditions at room temperature

A simple, general and efficient method has been developed for the conversion of aldehydes to 1,1-diacetates using acetic anhydride, a catalytic amount of non commercial Keggin heteropolyacid (H<SUB>6</SUB> PalMo<SUB>11</SUB>O<SUB>40</SUB>) (1% mol) in solvent free...

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Detalles Bibliográficos
Autores principales: Romanelli, Gustavo Pablo, Dimitroff, Pablo, Vázquez, Patricia Graciela, Autino, Juan Carlos
Formato: Articulo
Lenguaje:inglés
Publicado: 2007
Materias:
Ciencias Exactas
Química
1,1-diacetates
acylals
aldehydes
heteropolyacid
Keggin catalyst
solvent-free
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/40164
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Descripción
Sumario:A simple, general and efficient method has been developed for the conversion of aldehydes to 1,1-diacetates using acetic anhydride, a catalytic amount of non commercial Keggin heteropolyacid (H<SUB>6</SUB> PalMo<SUB>11</SUB>O<SUB>40</SUB>) (1% mol) in solvent free conditions at room temperature. Aromatic and aliphatic, simple and conjugated aldehydes were protected with excellent yields.

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