2-Bromo-9,9-di-n-butylfluoren Chemical Properties

Melting point:

55 °C

Boiling point:

434.6±24.0 °C(Predicted)

Density 

1.174±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

form 

powder to crystal

color 

White to Almost white

Safety Information

HS Code 

2903.99.8001

2-Bromo-9,9-di-n-butylfluoren Usage And Synthesis

Synthesis

9,9-bis(n-butyl)fluorene (26 g, 92 mmol) was used as raw material and mixed with N-bromosuccinimide (NBS, 16.5 g, 92 mmol) in acetone (200 mL). The reaction mixture was stirred at 80 °C for 3 h under nitrogen protection. After completion of the reaction, it was cooled to room temperature, the reaction solution was poured into cold water and extracted with dichloromethane (DCM, 3 x 200 mL). The organic layers were combined, washed with water, dried over anhydrous sodium sulfate, filtered and concentrated to dryness. The crude product was purified by silica gel short-column chromatography with petroleum ether as eluent to afford the target product 2-bromo-9,9-dibutylfluorene as a colorless solid (29.2 g, 92.7% yield); melting point 58-61 °C. 1H NMR (400 MHz, CDCl3) δ (ppm): 7.64-7.66 (m, 1H), 7.50-7.55 (m, 1H) , 7.43-7.47 (m, 2H), 7.31-7.34 (m, 3H), 1.88-1.96 (m, 4H), 1.03-1.12 (m, 4H), 0.68 (t, 6H, J=7.4Hz), 0.52-0.63 (m, 4H).

References

[1] Australian Journal of Chemistry, 2008, vol. 61, # 7, p. 541 - 546
[2] Chemistry - A European Journal, 2005, vol. 11, # 11, p. 3285 - 3293
[3] Dyes and Pigments, 2012, vol. 95, # 3, p. 679 - 688
[4] New Journal of Chemistry, 2015, vol. 39, # 2, p. 1038 - 1044
[5] Patent: KR101567837, 2015, B1. Location in patent: Paragraph 0201; 0204; 0205; 0217

2-Bromo-9,9-di-n-butylfluoren(88223-35-2)Related Product Information

• 2'-Bromo-spiro[9H-fluorene-9,9'-[9H]xanthene]
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• 2-Bromo-9,9-diethylfluorene
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• 9,9-diMethyl-N-phenyl-9H-fluoren-2-aMine
• 2-Bromo-9,9-dihexyl fluorene