1261475-45-9Relevant articles and documents
A 3 - bromo -2 - nitrobenzaldehyde chemical synthesis method
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Paragraph 0024; 0031-0032; 0043; 0054, (2018/07/15)
The invention relates to a chemical synthesis method of 3-bromo-2-nitrobenzaldehyde. The chemical synthesis method is characterized by using 1,3-dibromo-2-nitrobenzene as a raw material and carrying out five-step reactions including substitution, decarboxylation, oxidation, reduction and hydroformylation, and comprises the following steps of adding 1,3-dibromo-2-nitrobenzene, dimethyl malonate and alkali to an organic solvent to react to prepare 2-(3-bromo-2-nitrobenzaldehyde)-dimethyl malonate; dissolving 2-(3-bromo-2-nitrobenzaldehyde)-dimethyl malonate obtained in the former step in a tetrahydrofuran or acetone solvent, and adding a hydrochloric acid solution to react to prepare 2-(3-bromo-2-nitrobenzaldehyde)-acetic acid; adding a sodium hydroxide water solution and potassium permanganate to react to obtain 3-bromo-2-nitrobenzoic acid; dissolving 3-bromo-2-nitrobenzoic acid in the tetrahydrofuran solvent, and adding borane tetrahydrofuran to react to obtain 3-bromo-2-nitrobenzyl alcohol; adding 3-bromo-2-nitrobenzyl alcohol to a dichloromethane or 1,2-dichloroethane solvent and adding manganese dioxide to react to prepare 3-bromo-2-nitrobenzaldehyde. The synthetic route has the advantages of low cost and high yield.
Tunable emissive thin films through ICT photodisruption of nitro-substituted triarylamines
Jacquart, Aurelie,Tauc, Patrick,Pansu, Robert B.,Ishow, Elena
supporting information; experimental part, p. 4360 - 4362 (2010/08/22)
UV-assisted photocleavage in the solid state of orange emitting nitro-substituted triarylamines leads to the appearance of blue emission following photodisruption of the ICT state.