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Efficient and convenient synthesis of symmetrical carboxylic anhydrides from carboxylic acids with sulfated zirconia by phase transfer catalysis

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Author(s): Yu Lin Hu | Xing E Zhao | Ming Lu

Journal: Bulletin of the Chemical Society of Ethiopia
ISSN 1011-3924

Volume: 25;
Issue: 2;
Start page: 255;
Date: 2011;
Original page

Keywords: Carboxylic anhydrides | Carboxylic acids | SO42−/ZrO2 | Phase transfer catalysis

ABSTRACT
An efficient and convenient procedure for the synthesis of symmetrical carboxylic anhydrides from carboxylic acids with sulfated zirconia by PEG-1000 phase transfer catalysis has been developed. The reactions proceeded under mild and solvent-free conditions to provide the carboxylic anhydrides in good to excellent yields. The product can be isolated by a simple extraction with organic solvent, and the catalyst system can be recycled or reused without any significant loss of catalytic activity.
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