Silica-bonded N-propyl sulfamic acid as an efficient catalyst for the formylation and acetylation of alcohols and amines under heterogeneous conditions |
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Authors: | Khodabakhsh Niknam Dariush Saberi |
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Institution: | Department of Chemistry, 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 N-propyl sulfamic acid (SBNPSA) by the reaction of 3-aminopropylsilica (1) and chlorosulfonic acid in chloroform is described. This solid acid is employed as a new catalyst for the formylation of alcohols and amines with ethyl formate under mild and heterogeneous conditions at room temperature with good to excellent yields. Also, SBNPSA catalyzed acetylation of various alcohols and amines with acetic anhydride at room temperature. |
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Keywords: | Formylation Silica-bonded N-propyl sulfamic acid Ethyl formate Alcohols Acetylation Amines Acetic anhydride |
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