4'-BROMO-2,2':6',2''-TERPYRIDINE Chemical Properties

Melting point:

139 °C

Boiling point:

422.3±40.0 °C(Predicted)

Density 

1.446±0.06 g/cm3(Predicted)

storage temp. 

under inert gas (nitrogen or Argon) at 2-8°C

form 

powder to crystal

pka

4.20±0.22(Predicted)

color 

White to Almost white

InChI

InChI=1S/C15H10BrN3/c16-11-9-14(12-5-1-3-7-17-12)19-15(10-11)13-6-2-4-8-18-13/h1-10H

InChIKey

CJRRILXBSCRHKN-UHFFFAOYSA-N

SMILES

C1(C2=NC(C3=NC=CC=C3)=CC(Br)=C2)=NC=CC=C1

Safety Information

Safety Statements 

24/25

HS Code 

29333990

4'-BROMO-2,2':6',2''-TERPYRIDINE Usage And Synthesis

Uses

4''-Bromo-2,2'':6'',2''''-terpyridine is used in preparation of xanthene-based compounds as organic electroluminescent material for OLED.

Synthesis

Example 5 Synthesis of 4'-bromo-2,2':6',2''-terpyridine (5): in a 500 mL flask was added 2,6-bis(2-pyridyl)-4(1H)-pyridinone (2.47 g, 9.9 mmol), phosphorus pentabromide (6.6 g, 15.4 mmol), and phosphorus tribromide oxide (30 g), and the mixture was heated to 100 °C and stirred for 12 hours The mixture was heated to 100 °C and stirred for 12 h. Upon completion of the reaction, a black oily residue was obtained. After cooling the reaction mixture to room temperature, ice water was carefully added. Subsequently, the reaction mixture was neutralized with aqueous K2CO3, extracted with dichloromethane (3 x 300 mL), the organic phase was dried with anhydrous magnesium sulfate, and the solvent was removed by filtration under reduced pressure to give a brown solid. The solid was purified by chromatography on a neutral alumina column using 2:1 dichloromethane/hexane as eluent, resulting in 2.65 g of pure 4'-bromo-2,2':6',2''-terpyridine in 86% yield (based on 2.47 g of 2,6-bis(2-pyridyl)-4(1H)-pyridinone feedstock).

References

[1] Journal of the American Chemical Society, 2002, vol. 124, # 46, p. 13806 - 13813
[2] Patent: US7445845, 2008, B2. Location in patent: Page/Page column 22-23; sheet 3
[3] Journal of the Chemical Society, Chemical Communications, 1995, # 1, p. 65 - 66
[4] Journal of the Chemical Society - Dalton Transactions, 1996, # 22, p. 4249 - 4255
[5] Dalton Transactions, 2007, # 41, p. 4659 - 4665

4'-BROMO-2,2':6',2''-TERPYRIDINE(149817-62-9)Related Product Information

• 2,2':6',2''-TERPYRIDINE
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