CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
Silicagel-supported H6P2W18O62.24H2O: A reusable catalyst to prepare diphenylmethyl (DPM) ethers
Autor/es:
G. ROMANELLI, D. RUIZ, H. BIDEBERRIPE, J. AUTINO. G. BARONETTI, H. THOMAS
Revista:
Arkivoc
Editorial:
ARKAT
Referencias:
Año: 2007 vol. iX p. 1 - 1
ISSN:
1424-6376
Resumen:
In this work, we report an efficient preparation of diphenylmethylethers (benzydryl ethers, DPM-ethers) from benzhydrol and alcohols or phenols. Wells-Dawson heteropolyacid (H6P2W18O62.24H2O), bulk or supported on silica showed catalytic activity for DPM-ethers preparation in toluene, at 60-80°C, in 0.5-1.5h. In these conditions twelve diphenylmethylethers of alcohols and phenol were obtained which excellent yields (78-96%). The heterogeneous reaction conditions provided a very simple, environmentally friendly, clean, economical and selective protocol, for the preparation of unsymmetrical ethers. The catalyst is easily recycled and reused without loss of the catalytic activity
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