Silica-bonded S-sulfonic acid as a recyclable catalyst for chemoselective synthesis of 1,1-diacetates |
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Authors: | Khodabakhsh Niknam Dariush Saberi Maryam Nouri Sefat |
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Affiliation: | Chemistry Department, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran |
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Abstract: | A simple and efficient procedure for the preparation of silica-bonded S-sulfonic acid (SBSSA) by reaction of 3-mercaptopropylsilica (MPS) and chlorosulfonic acid in chloroform is described. This solid acid is employed as a recyclable catalyst for the synthesis of 1,1-diacetates from aromatic aldehydes and acetic anhydride under mild and solvent-free conditions at room temperature. |
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Keywords: | Silica-bonded S-sulfonic acid 1,1-Diacetates Aldehydes Solvent-free |
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