2,7-Dibromo-9,9'-spiro-bifluorene
- Product Name
- 2,7-Dibromo-9,9'-spiro-bifluorene
- CAS No.
- 171408-84-7
- Chemical Name
- 2,7-Dibromo-9,9'-spiro-bifluorene
- Synonyms
- M8917;2,7-Dibromo-9,9'-sp;2,7-Dibromo-9,9'-spirobifL;2,7-Dibromo-9,9'-spirofluorene;2,7-Dibromo-9,9-spriobifluorene;2,7-Dibromo-9,9'-spirobifluorene;2,7-Dibromo-9,9'-spiro-bifluorene;2,7-dibroMo -9,9-screwtwo fluorene;2,7-DIBROMO-9,9''-SPIRO-BIFLUOROENE;2,7-Dibromo-9,9'-spirobi[9H-fluorene
- CBNumber
- CB5844476
- Molecular Formula
- C25H14Br2
- Formula Weight
- 474.19
- MOL File
- 171408-84-7.mol
2,7-Dibromo-9,9'-spiro-bifluorene Property
- Melting point:
- 334-336°C
- Boiling point:
- 557.4±50.0 °C(Predicted)
- Density
- 1.74±0.1 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- form
- powder to crystal
- color
- White to Almost white
- InChI
- InChI=1S/C25H14Br2/c26-15-9-11-19-20-12-10-16(27)14-24(20)25(23(19)13-15)21-7-3-1-5-17(21)18-6-2-4-8-22(18)25/h1-14H
- InChIKey
- UPJLZKCEPFAKSH-UHFFFAOYSA-N
- SMILES
- C12(C3=C(C=CC=C3)C3=C1C=CC=C3)C1=C(C=CC(Br)=C1)C1=C2C=C(Br)C=C1
Safety
- WGK Germany
- 3
- HS Code
- 2903.99.8001
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
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.
P321Specific treatment (see … on this label).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
N-Bromosuccinimide Price
- Product number
- 738018
- Product name
- 2,7-Dibromo-9,9′-spirobifluorene
- Purity
- 95%
- Packaging
- 1g
- Price
- $108
- Updated
- 2023/01/07
- Product number
- 738018
- Product name
- 2,7-Dibromo-9,9′-spirobifluorene
- Purity
- 95%
- Packaging
- 5g
- Price
- $315
- Updated
- 2023/01/07
- Product number
- D3781
- Product name
- 2,7-Dibromo-9,9'-spirobi[9H-fluorene]
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 1g
- Price
- $79
- Updated
- 2025/07/31
- Product number
- D448693
- Product name
- 2,7-Dibromo-9,9''-spirobifluorene
- Packaging
- 50mg
- Price
- $60
- Updated
- 2021/12/16
- Product number
- J97715
- Product name
- 2,7-Dibromo-9,9'-spiro-bifluorene
- Packaging
- 10g
- Price
- $72
- Updated
- 2021/12/16
2,7-Dibromo-9,9'-spiro-bifluorene Chemical Properties,Usage,Production
Chemical Properties
white powder
Uses
2,7-Dibromo-9,9′-spirobifluorene can be used in the preparation of 9,9′-spirobifluorene-based small molecules, which can further be utilized as host materials in organic light emitting diodes (OLEDs).
General Description
2,7-Dibromo-9,9′-spirobifluorene is a 9,9 substituted poly(2,7-fluorene) that is synthesized from 2,7-dribromo-9-fluorenone by reacting with a Grignard reagent of 2-bromobiphenyl. It has high photoluminescence and electroluminescent quantum efficiency that make it useful in the development of organic electronic devices.
Synthesis
171408-85-8
171408-84-7
General procedure for the synthesis of 2,7-dibromo-9,9'-spirobifluorene from the compound (CAS: 171408-85-8): to a toluene solution containing 180 g of 9-(2-biphenylyl)-2,7-dibromo-9-fluorenol (the product of Example 3), the reaction was initiated by the slow addition of 18.0 g (0.180 mol, 2.00 M) of concentrated sulfuric acid. The reaction mixture was stirred at room temperature for 2 hours. Upon completion of the reaction, aqueous caustic soda solution was added dropwise to the mixture until neutral, followed by the addition of toluene to promote crystallization. The precipitated white crystals were collected by filtration and washed with an appropriate amount of toluene and dried to afford 35.9 g of 2,7-dibromo-9,9'-spirobifluorene (yield: 80%, based on Example 3 the total yield was 72%, HPLC purity ≥95%).
References
[1] Patent: EP1777227, 2007, A1. Location in patent: Page/Page column 6-7
[2] Macromolecules, 2010, vol. 43, # 24, p. 10355 - 10365
[3] Patent: CN108863694, 2018, A. Location in patent: Paragraph 0039; 0040
[4] Patent: KR101555155, 2015, B1. Location in patent: Paragraph 0119; 0120; 0121; 0122
[5] Patent: JP6257340, 2018, B2. Location in patent: Paragraph 0050
2,7-Dibromo-9,9'-spiro-bifluorene Preparation Products And Raw materials
Raw materials
Preparation Products
2,7-Dibromo-9,9'-spiro-bifluorene Suppliers
- Tel
- 320-37350700
- Fax
- +32 (0)37350701
- sales@tcieurope.eu
- Country
- Europe
- ProdList
- 23671
- Advantage
- 75
View Lastest Price from 2,7-Dibromo-9,9'-spiro-bifluorene manufacturers
- Product
- 2,7-Dibromo-9,9-Spirobifluorene 171408-84-7
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 150KG /month
- Release date
- 2021-11-18
- Product
- 2,7-Dibromo-9,9'-spirobifluorene 171408-84-7
- Price
- US $200.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%, 99.5% Sublimated
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-30
- Product
- 2,7-Dibromo-9,9'-spiro-bifluorene 171408-84-7
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 98.0%min
- Supply Ability
- 100kg
- Release date
- 2023-03-15