ChemicalBook > CAS DataBase List > 2,7-Dibromo-9,9'-spiro-bifluorene

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
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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
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Safety

WGK Germany 
3
HS Code 
2903.99.8001
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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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
738018
Product name
2,7-Dibromo-9,9′-spirobifluorene
Purity
95%
Packaging
1g
Price
$108
Updated
2023/01/07
Sigma-Aldrich
Product number
738018
Product name
2,7-Dibromo-9,9′-spirobifluorene
Purity
95%
Packaging
5g
Price
$315
Updated
2023/01/07
TCI Chemical
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
TRC
Product number
D448693
Product name
2,7-Dibromo-9,9''-spirobifluorene
Packaging
50mg
Price
$60
Updated
2021/12/16
AK Scientific
Product number
J97715
Product name
2,7-Dibromo-9,9'-spiro-bifluorene
Packaging
10g
Price
$72
Updated
2021/12/16
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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

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2,7-Dibromo-9,9'-spiro-bifluorene Suppliers

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View Lastest Price from 2,7-Dibromo-9,9'-spiro-bifluorene manufacturers

Shanghai Daken Advanced Materials Co.,Ltd
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
Henan Fengda Chemical Co., Ltd
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
LY Global chemicals co.,ltd .
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

171408-84-7, 2,7-Dibromo-9,9'-spiro-bifluoreneRelated Search:

1,3-Dibromo-5,5-dimethylhydantoin 2,4-DIBROMOBIPHENYL 2,7-Dibromocarbazole 3,3'-(2,7-DibroMo-9H-fluorene-9,9-diyl)bis(N,N-diMethylpropan- 1-aMine) 2,7-Dibromo-9H-fluoren-9-one 2,7-Dibromo-9,9-bis(2-(2-(2-methoxyethoxy)ethoxy)ethyl)-9H-fluorene 2,7-dibroMo-4,9-dihydro-4,4,9,9-tetrakis(4-hexylphenyl)-s-indaceno[1,2-b:5,6-b']dithiophene Bromine 2,7-Dibromo-9,9-dimethylfluorene 2-Bromo-9,9-dimethylfluorene 2-Bromo-9,9'-spirobi[9H-fluorene] 2-Bromo-9,9-diphenylfluorene 2,7-Dibromofluorene 2,7-Dibromo-9,9-diphenylfluororene 9,9'-Spirobi[9H-fluorene] 2-Bromofluorene 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene 2,7-Dibromo-9,9'-spiro-bifluorene

  • 9,9′-Spirobi[9H-fluorene],2,7-dibromo
  • 2,7-DIBROMO-9,9''-SPIRO-BIFLUOROENE
  • 2,7-Dibromo-9,9-spriobifluorene
  • 2,7-Dibromo-9,9'-sp
  • 2,7-DibroMo-9,9'-spirobi[9H-fluorene]
  • 2,7-dibroMo-9,9'-Spirobi[9H]-fluorene (DBSBF)
  • 2,7-dibroMo -9,9-screwtwo fluorene
  • 2,7-Dibromo-9,9'-spirofluorene
  • 2,7-Dibromo-9,9'-spirobi[9H-fluorene]&gt
  • 2,7-Dibromo-9,9'-spirobifL
  • 2,7-Dibromo-9,9'-spiro-bifluorene ISO 9001：2015 REACH
  • M8917
  • 2,7-Dibromo-9,9'-spirobifluorene
  • 2,7-Dibromo-9,9'-spirobi[9H-fluorene
  • 2,7-Dibromo-9,9′-spiro-bifluorene, CAS 171408-84-7
  • 2,7-Dibromo-9,9'-spiro-bifluorene
  • 171408-84-7
  • 1171408-84-7
  • 408-84-7
  • Fluorene Derivatives
  • Fluorene Series
  • OLED