2608-35-7Relevant academic research and scientific papers
6(7)-Acylperimidines nitration and methods of peri-annelation on this base
Aksenov,Aksenov,Lyakhovnenko,Smirnov,Levina,Aksenova
, p. 980 - 987 (2013)
A method has been developed for the nitration of 6(7)-acylperimidines using sodium nitrite in formic acid. The reaction gives a mixture of 4(9)-, 9(4)-, and 7(6)-nitro-6(7)-acylperimidines from which the latter can be separated by extraction with chloroform. Reduction of the 6(7)-acyl-7(6)-nitro- perimidines yields 1H-1,5,7-triazacyclopenta[cd]phenalenes. Subsequent Schmidt reaction and reduction give 1,3,6,8-tetraazapyrenes.
OLED electron transport material and application thereof
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Paragraph 0026-0029, (2018/11/27)
The invention relates to an electron transport material and application thereof. The electron transport material has a molecular structure as shown in the formula (1) in the specification. According to the material, electron-deficient 2,7-dibenzyl-1,3,6,8-tetraazapyrene is used as the core, and an appropriate substituent group is introduced into the electron-deficient center so as to form small molecular OLED functional layer materials with excellent electron transport properties with the molecular mass of 510-820. The material has a closed-loop structure and excellent heat stability and is suitable for the vapor plating process for the manufacturing of a small molecular organic electroluminescent device.
Dual role of polyphosphoric acid-activated nitroalkanes in oxidative peri -annulations: Efficient synthesis of 1,3,6,8-tetraazapyrenes
Aksenov, Alexander V.,Ovcharov, Dmitrii S.,Aksenov, Nicolai A.,Aksenov, Dmitrii A.,Nadein, Oleg N.,Rubin, Michael
, p. 29927 - 29932 (2017/07/07)
A highly efficient synthetic method for expeditious and selective assembly of tetraazopyrenes (TAPy) is reported, based on the novel reaction of electrophilically activated nitroalkanes with aromatic amines. Remarkably, the nitroalkanes play a dual role in this process, also serving as mild and efficient oxidants promoting aromatization of the final product and allowing for the exclusion of a poorly controllable aerobic treatment.
