p-Toluenesulfonic acid catalyzed regiospecific nitration of phenols with metal nitrates |
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Authors: | V. Anuradha |
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Affiliation: | Division of Organic Chemistry-I, Indian Institute of Chemical Technology, Hyderabad 500 007, India |
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Abstract: | Highly regiospecific mononitration of phenols and substituted phenols is accomplished employing a metal nitrate and a catalytic amount of p-toluenesulfonic acid in acetone. An exclusive ortho-selectivity was observed with excellent yields. A variety of metal nitrates were used to obtain o-nitrophenols exclusively in good to excellent yields. The use of p-toluenesulfonic acid is key for the selectivity observed. |
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Keywords: | Nitration Nickel nitrate Regiospecific p-TSA |
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