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Nagai, M., Suzuki, H. and Hashiba, I. (Nissan Chem. Ind. Ltd.) (2005) Process for the Preparation of Bromoisophthalic Acid or Derivatives Thereof. US Patent 6855845, Chemical Abstracts, 136, 2002, Article ID: 37401.

has been cited by the following article:

• TITLE: Aromatic Bromination in Concentrated Nitric Acid

  AUTHORS: Alexander M. Andrievsky, Vera I. Lomzakova, Mikhail K. Grachev, Mikhail V. Gorelik

  KEYWORDS: Bromination, Nitration, Aromatic Compounds, 3-Bromo-4-chloronitrobenzene, 5 Bromoisophthalic Acid, 2, 3, 5, 6-Tetrabromoterephthalic Acid, 3, 4, 5, 6 Tetrabromophthalic Anhydride

  JOURNAL NAME: Open Journal of Synthesis Theory and Applications, Vol.3 No.2, April 17, 2014

  ABSTRACT: Action of bromine in concentrated nitric acid allows carrying out mono- and polybromination of moderately deactivated aromatic compounds. 4-Chloronitrobenzene and isophthalic acid turnes into 3-bromo-4-chloronitrobenzene and 5-bromoisophthalic acid at reaction with bromine in concentrated nitric acid at 20°C whereas in absence of bromine in the same conditions 4-chloro-1, 3-dinitrobenzene and 5-nitroisophthalic acid are formed accordingly. Presence of bromine in concentrated nitric acid changes nitrating capacity to brominating one. Terephthalic acid and phthalic anhydride at heating with bromine in concentrated nitric acid can be transformed to appropriating tetrabromo substituted compounds.