2,7-Dibromofluorene
- Product Name
- 2,7-Dibromofluorene
- CAS No.
- 16433-88-8
- Chemical Name
- 2,7-Dibromofluorene
- Synonyms
- 2,7-Dibromo-9H-fluorene;Dibromofluorene;M8030;2,7-DibromofL;7-DibroMofluorene;2,7-DibroMoflurene;TIMTEC-BB SBB007691;2,7-DIBROMOFLUORENE;Fluorene, 2,7-dibromo-;2,7-Dibromo-9-fluorene
- CBNumber
- CB7669721
- Molecular Formula
- C13H8Br2
- Formula Weight
- 324.01
- MOL File
- 16433-88-8.mol
2,7-Dibromofluorene Property
- Melting point:
- 164-166 °C (lit.)
- Boiling point:
- 329.77°C (rough estimate)
- Density
- 1.7203 (estimate)
- refractive index
- 1.6000 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- Chloroform (Slightly)
- form
- Crystalline Powder
- color
- White to off-white
- BRN
- 2049205
- InChI
- InChI=1S/C13H8Br2/c14-10-1-3-12-8(6-10)5-9-7-11(15)2-4-13(9)12/h1-4,6-7H,5H2
- InChIKey
- AVXFJPFSWLMKSG-UHFFFAOYSA-N
- SMILES
- C1C2=C(C=CC(Br)=C2)C2=C1C=C(Br)C=C2
- CAS DataBase Reference
- 16433-88-8(CAS DataBase Reference)
- NIST Chemistry Reference
- 9H-fluorene, 2,7-dibromo-(16433-88-8)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 342297
- Product name
- 2,7-Dibromofluorene
- Purity
- 97%
- Packaging
- 5g
- Price
- $26.8
- Updated
- 2025/07/31
- Product number
- 342297
- Product name
- 2,7-Dibromofluorene
- Purity
- 97%
- Packaging
- 25g
- Price
- $77.58
- Updated
- 2025/07/31
- Product number
- D3556
- Product name
- 2,7-Dibromofluorene
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $43
- Updated
- 2025/07/31
- Product number
- D3556
- Product name
- 2,7-Dibromofluorene
- Purity
- >98.0%(GC)
- Packaging
- 25g
- Price
- $136
- Updated
- 2025/07/31
- Product number
- D3556
- Product name
- 2,7-Dibromofluorene
- Purity
- >98.0%(GC)
- Packaging
- 100g
- Price
- $449
- Updated
- 2025/07/31
2,7-Dibromofluorene Chemical Properties,Usage,Production
Description
2,7-Dibromofluorene is a halogenated polycyclic aromatic compound and its vapour pressure has been measured using the Knudsen effusion method.
Chemical Properties
white to off-white crystalline powder
Uses
2,7-Dibromofluorene was used as a template for the N-carbazole capped oligofluorenes which show potential as hole-transporting materials for organic light emitting devices (OLEDs). It may be used in the synthesis of conjugated polymer, poly[9,9′-bis(6′′-N,N,N-trimethylammonium)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole) dibromide] (PFBT), used in label-free DNA microarrays. It was used in the preparartion of blue photoluminescent unsymmetrically substituted polyfluorene. It was also used in the preparation of 2,7-dibromofluorene monomers containing benzyl ether dendrons (generations 1, 2 and 3) in the 9,9′-position of the fluorene ring, such as:
9,9-bis[(3,5-bis(benzyloxy)benzyloxy)methyl]-2,7-dibromofluorene
9,9-bis[(3,5-bis(3,5-bis(benzyloxy)benzyloxy)benzyloxy)-methyl] 2,7-dibromo-fluorene
9,9-bis[(3,5-bis(3,5-bis(3,5-bis(benzyloxy)benzyloxy)benzyloxy) benzyloxy)-methyl]-2,7-dibromofluorene
Uses
2,7-Dibromofluorene is used as a template for the N-carbazole capped oligofluorenes which show potential as hole-transporting materials for organic light emitting devices (OLEDs). It is also used in the synthesis of conjugated polymer, poly[9,9?-bis(6??-N,N,N-trimethylammonium)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole) dibromide] (PFBT), used in label-free DNA microarrays, in the preparation of blue photoluminescent unsymmetrically substituted polyfluorene and in the preparation of 2,7-dibromofluorene monomers containing benzyl ether dendrons (generations 1, 2 and 3) in the 9,9?-position of the fluorene ring, such as: 9,9-bis[(3,5-bis(benzyloxy)benzyloxy)methyl]-2,7-dibromofluorene, 9,9-bis[(3,5-bis(3,5-bis(benzyloxy)benzyloxy)benzyloxy)-methyl] 2,7-dibromo-fluorene, 9,9-bis[(3,5-bis(3,5-bis(3,5-bis(benzyloxy)benzyloxy)benzyloxy) benzyloxy)-methyl]-2,7-dibromofluorene.
Uses
2,7-Dibromofluorene was used as a template for the N-carbazole capped oligofluorenes which show potential as hole-transporting materials for organic light emitting devices (OLEDs). It may be used in the synthesis of conjugated polymer, poly[9,9′-bis(6′′-N,N,N-trimethylammonium)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole) dibromide] (PFBT), used in label-free DNA microarrays. It was used in the preparartion of blue photoluminescent unsymmetrically substituted polyfluorene. It was also used in the preparation of 2,7-dibromofluorene monomers containing benzyl ether dendrons (generations 1, 2 and 3) in the 9,9′-position of the fluorene ring, such as:
- 9,9-bis[(3,5-bis(benzyloxy)benzyloxy)methyl]-2,7-dibromofluorene
- 9,9-bis[(3,5-bis(3,5-bis(benzyloxy)benzyloxy)benzyloxy)-methyl] 2,7-dibromo-fluorene
- 9,9-bis[(3,5-bis(3,5-bis(3,5-bis(benzyloxy)benzyloxy)benzyloxy) benzyloxy)-methyl]-2,7-dibromofluorene
Synthesis
86-73-7
16433-88-8
General procedure for the synthesis of 2,7-dibromofluorene from fluorene: Fluorene (1.5 g, 9.0 mmol) was dissolved in carbon tetrachloride (80 mL), followed by the addition of 30 g of copper(II) bromide loaded on aluminum oxide. The reaction mixture was stirred under reflux conditions for 5 hours. Upon completion of the reaction, the solution was cooled to room temperature, filtered to remove solid impurities, and the filter cake was washed with carbon tetrachloride (50 mL). The combined organic phases were dried with anhydrous magnesium sulfate. The solvent was removed by concentration under reduced pressure to give 2.87 g (98% yield) of 2,7-dibromofluorene as a yellow solid. Recrystallization by ethyl acetate/hexane (5:95, v/v) mixed solvent gave pure 2,7-dibromofluorene as light yellow crystals.
References
[1] Tetrahedron, 2003, vol. 59, # 17, p. 3131 - 3156
[2] Dyes and Pigments, 2015, vol. 113, p. 682 - 691
[3] Organic and Biomolecular Chemistry, 2018, vol. 16, # 22, p. 4071 - 4075
[4] Chemistry Letters, 2013, vol. 42, # 11, p. 1355 - 1357
[5] Bulletin of the Chemical Society of Japan, 1989, vol. 62, # 2, p. 439 - 443
2,7-Dibromofluorene Preparation Products And Raw materials
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View Lastest Price from 2,7-Dibromofluorene manufacturers
- Product
- 2,7-Dibromofluorene 16433-88-8
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 5tons
- Release date
- 2024-12-04
- Product
- 2,7-Dibromofluorene 16433-88-8
- Price
- US $100.00-75.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000
- Release date
- 2024-08-22
- Product
- 2,7-Dibromofluorene 16433-88-8
- Price
- US $41.00/KG
- Min. Order
- 1KG
- Purity
- 99%+
- Supply Ability
- 300MT/year
- Release date
- 2023-06-16