Catalysis Communications

Sulfonated rice husk ash (RHA-SO 3 H): A highly powerful and efficient solid acid catalyst for the chemoselective preparation and deprotection of 1, 1-diacetates

F Shirini, M Mamaghani, M Seddighi

Index: Shirini; Mamaghani; Mostashari-Rad; Abedini Bulletin of the Korean Chemical Society, 2010 , vol. 31, # 8 p. 2399 - 2401

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Citation Number: 37

Abstract

Rice husk ash (RHA), as a source of amorphous silica, was treated with chlorosulfonic acid and sulfonated rice husk ash (RHA-SO3H) as a highly powerful solid acid catalyst was obtained and characterized with a variety of techniques including IR, TGA, SEM, XRD, pH