Regioselective Nitration of Phenols in O/W Microemulsion by NaNO₃ and Dilute Sulfuric Acid

Jianzhong Jiang Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Jiangsu, P. R. ChinaCorrespondence[email protected]

Li Dai Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Jiangsu, P. R. China

Zhe Cui Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Jiangsu, P. R. China

Liting Lu Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Jiangsu, P. R. China

Zhenggang Cui Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Jiangsu, P. R. China

Abstract

Highly regiospecific mononitration of phenol by NaNO₃ and dilute sulfuric acid was carried out in a TX100 oil-in-water microemulsion. Effects of various parameters such as acid type, surfactant concentration, water content, and alcohol have been investigated. The use of inexpensive and relatively nontoxic acidic reagent is an advantage of this method.

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Notes

^aPhenol (0.8 mmol), NaNO₃ (1.6 mmol), NaNO₂ (0.10 mmol), and dilute inorganic acid (0.8 mL, 10 mol/L), 2 hours.

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Regioselective Nitration of Phenols in O/W Microemulsion by NaNO₃ and Dilute Sulfuric Acid

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Regioselective Nitration of Phenols in O/W Microemulsion by NaNO3 and Dilute Sulfuric Acid

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Regioselective Nitration of Phenols in O/W Microemulsion by NaNO₃ and Dilute Sulfuric Acid