609-89-2Relevant articles and documents
Preparation method of pentachloride intermediate 2, 4 - dichloro -6 - nitrophenol (by machine translation)
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Paragraph 0042; 0045-0049; 0050; 0052-0053; 0054; 0056-0057, (2019/08/06)
To the preparation method, 2, 4 - dichlorophenol sulfuric acid solution and nitric acid solution are respectively added to a continuous flow micro-channel reactor, and subjected to preheating, mixing, nitration reaction to obtain -6 - 2 dichloro 4 -6 - 4 - 2 -nitrophenol. The method comprises the following steps of: preheating, mixing and nitration reaction, and carrying out nitrification reaction. The method has the advantages of being convenient, safe, efficient, small in process environment pollution and the like, and can effectively avoid the generation. (by machine translation)
Room-Temperature, Water-Promoted, Radical-Coupling Reactions of Phenols with tert -Butyl Nitrite
Wei, Wen-Ting,Zhu, Wen-Ming,Liang, Weida,Wu, Yi,Huang, Hui-Yan,Huang, Yi-Ling,Luo, Junfei,Liang, Hongze
supporting information, p. 2153 - 2156 (2017/09/26)
A radical-radical cross-coupling reaction of phenols with tert -butyl nitrite has been developed with the use of water as an additive. This method allows the construction of C-N bonds under an air atmosphere at room temperature, providing the ortho -nitrated phenol derivative in moderate to good yields.
A new method for the mononitration of phenol derivatives by poly(4-vinylpyridinium nitrate) and silica sulfuric acid under mild conditions
Goudarziafshar, Hamid
experimental part, p. 458 - 461 (2012/06/18)
This procedure works efficiently for high selective mono nitration of phenol and substituted phenol to corresponding nitro compounds in moderate to high yield using poly(4-vinylpyridinium nitrate) and silica sulfuric acid in dichloromethane at room temperature.