4-Bromo-4',4''-dimethyltriphenylamine Chemical Properties

Melting point:

102 °C

Boiling point:

459.9±45.0 °C(Predicted)

Density 

1.307±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

form 

powder to crystal

pka

-2.82±0.50(Predicted)

color 

White to Orange to Green

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-36/37/38

Safety Statements 

26

WGK Germany 

3

HS Code 

29214200

4-Bromo-4',4''-dimethyltriphenylamine Usage And Synthesis

Chemical Properties

off-white powder

Synthesis

General procedure for the synthesis of 4-bromo-4',4''-dimethyltriphenylamine from 4,4'-dimethyltriphenylamine: 4,4'-dimethyltriphenylamine (10 g, 36.6 mmol) was dissolved in dichloromethane (200 mL) at room temperature, followed by the addition of N-bromosuccinimide (NBS) (6.764 g, 38 mmol). The reaction mixture was stirred for about 3 hours. Upon completion of the reaction, the solid insoluble material was removed by filtration and the filtrate was purified by passing through a silica gel column and subjected to fast column chromatography using a gradient elution (hexane to hexane/dichloromethane = 4:1). The fraction containing the target product was collected and concentrated under reduced pressure to remove the solvent to afford the white solid product 4-bromo-4',4''-dimethyltriphenylamine (compound 25) (12.86 g, 99.7% yield).

References

[1] Patent: US9172051, 2015, B2. Location in patent: Page/Page column 97; 98; 101; 102
[2] Patent: JP5966736, 2016, B2. Location in patent: Paragraph 0075; 0079
[3] Patent: WO2013/8951, 2013, A1. Location in patent: Page/Page column 31

4-Bromo-4',4''-dimethyltriphenylamine(58047-42-0)Related Product Information

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• 4-Bromodiphenylamine
• 4-Bromo-4',4''-dimethyltriphenylamine