2,7-Dibromo-N-phenylcarbazole Chemical Properties

Melting point:

179.0 to 183.0 °C

Boiling point:

505.3±43.0 °C(Predicted)

Density 

1?+-.0.1 g/cm3(Predicted)

storage temp. 

Inert atmosphere,Room Temperature

form 

powder to crystal

color 

White to Almost white

Safety Information

HS Code 

2933.99.8290

2,7-Dibromo-N-phenylcarbazole Usage And Synthesis

Synthesis

General procedure for the synthesis of 2,7-dibromo-9-phenyl-9H-carbazole from 2,7-dibromocarbazole and iodobenzene: 32.5 g (100 mmol) of 2,7-dibromo-9H-carbazole, 20.4 g (100 mmol) of iodobenzene, 9.5 g (150 mmol) of copper powder, 27.6 g (200 mmol) of potassium carbonate, and 600 ml of dimethylformamide were mixed under the The reaction was heated at 130 °C under nitrogen protection overnight. After completion of the reaction, it was cooled to room temperature and the reaction mixture was filtered. The filtrate was extracted three times with dichloromethane and water, and the organic phase was dried with anhydrous magnesium sulfate, followed by evaporation under vacuum to remove the solvent. The residue was purified by silica gel column chromatography (eluent: hexane-dichloromethane) to afford the white solid product 2,7-dibromo-9-phenyl-9H-carbazole (31.3 g, 78 mmol, 78% yield).

References

[1] Patent: KR2015/144421, 2015, A. Location in patent: Paragraph 0312; 0313; 0315
[2] Journal of Materials Chemistry, 2011, vol. 21, # 13, p. 4918 - 4926
[3] Patent: US2016/204345, 2016, A1. Location in patent: Paragraph 0034-035
[4] Patent: CN107827808, 2018, A. Location in patent: Paragraph 0080; 0081; 0082; 0083; 0094; 0095; 0096; 0097
[5] Journal of Materials Chemistry, 2011, vol. 21, # 15, p. 5638 - 5644