Synthesis
General procedure for the synthesis of 3-bromo-9-(4-bromophenyl)-9H-carbazole from 9-(4-bromophenyl)carbazole: 9-(4-bromophenyl)-9H-carbazole (3.00 g, 9.31 mmol) was dissolved in dichloromethane (50 mL) under the condition of light avoidance, followed by addition of N-bromosuccinimide (NBS, 1.80 g, 10 mmol). The reaction mixture was stirred at room temperature for 12 hours. Upon completion of the reaction, water was added to the mixture and a white precipitate was precipitated. After filtration and drying, the resulting white solid was purified by recrystallization from petroleum ether. Yield: 100%.
References
[1] Organic Electronics: physics, materials, applications, 2014, vol. 15, # 11, p. 2667 - 2676
[2] Organic Electronics: physics, materials, applications, 2014, vol. 15, # 11, p. 2667 - 2676
[3] Patent: WO2016/28902, 2016, A1. Location in patent: Page/Page column 27, 28
[4] Patent: TW2016/25529, 2016, A. Location in patent: Paragraph 0051
[5] Advanced Materials, 2010, vol. 22, # 16, p. 1872 - 1876
