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Zincke nitration : ウィキペディア英語版 | Zincke nitration
The Zincke nitration is an organic reaction in which a bromine substituent of a phenol or cresol is replaced by a nitro group by treatment with nitrous acid or sodium nitrite.〔Zincke, Th., (J. Prakt. Chem. 61, 561–567 (1900) ) and correction at (J. Prakt. Chem. 63, 183 ff (1900) ).〕 The reaction is a manifestation of nucleophilic aromatic substitution. The reaction is named after Theodor Zincke. Two examples:〔''The Nitration of Brominated Fluorophenols by the Zincke Method'' L. Chas. Raiford and Arthur L. LeRosen J. Am. Chem. Soc.; 1944; 66(11) pp 1872–73; 〕 and:〔''Behavior of Mixed Halogenated Phenols in the Zincke Method of Nitration'' L. Chas. Raiford and Glen R. Miller J. Am. Chem. Soc.; 1933; 55(5) pp 2125–31; 〕 The Zincke nitration should not be confused with the Zincke–Suhl reaction or the Zincke reaction. ==References==
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