1351353-50-8Relevant articles and documents
Method for synthesizing 5-(8-bromine-2,3-diphenyl quinoxaline-5-yl) thiophene-2-formaldehyde
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, (2017/07/21)
The invention belongs to the technical field of organic electrofluorescent materials, and discloses a method for synthesizing 5-(8-bromine-2,3-diphenyl quinoxaline-5-yl) thiophene-2-formaldehyde. The method comprises the following steps: reacting 1,2-diaminobenzene sequentially with SOC12, bromine and the like to obtain intermediate 1; reacting 2-thiophenecarboxaldehyde sequentially with ethylene glycol, n-butyllithium and the like to obtain intermediate 2; and reacting the two intermediates with formic acid through a SUZUKI reaction product to obtain a target product having a molecular formula of C25H15BrN2OS. The synthesized product is orange solid powder, does not have mechanical impurity, and can be easily dissolved in THF and methylbenzene; and the synthesizing method is simple, and is easy for industrial production. A photovoltaic material prepared based on quinoxaline has the characteristic of relatively low HOMO energy level, is beneficial to improving the chemical stability of a finally prepared OLED material, and has a potential application value in the aspect of preparing photoelectrofluorescent devices or photoelectrofluorescent displays.