4-Bromo-9H-fluoren-9-one
- Product Name
- 4-Bromo-9H-fluoren-9-one
- CAS No.
- 4269-17-4
- Chemical Name
- 4-Bromo-9H-fluoren-9-one
- Synonyms
- NSC81339;4-Bromofluorenone;4-BroMo-9-fluorenone;4-Bromo-fluoren-9-one;4-bromo-9H-fluoren-9-on;4-broMo-9H-fluoren-9-one;9H-Fluoren-9-one, 4-bromo-;4-Bromo-9H-fluoren-9-one
- CBNumber
- CB11251224
- Molecular Formula
- C13H7BrO
- Formula Weight
- 259.1
- MOL File
- 4269-17-4.mol
4-Bromo-9H-fluoren-9-one Property
- Melting point:
- 127.0 to 131.0 °C
- Boiling point:
- 392.8±21.0 °C(Predicted)
- Density
- 1.609
- storage temp.
- Sealed in dry,Room Temperature
- form
- powder to crystal
- color
- White to Yellow to Green
- InChI
- InChI=1S/C13H7BrO/c14-11-7-3-6-10-12(11)8-4-1-2-5-9(8)13(10)15/h1-7H
- InChIKey
- YWYZCXNQMZOYHM-UHFFFAOYSA-N
- SMILES
- C1(=O)C2=C(C=CC=C2)C2=C1C=CC=C2Br
- CAS DataBase Reference
- 4269-17-4
Safety
- HS Code
- 2914.79.4000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
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
- B5521
- Product name
- 4-Bromo-9H-fluoren-9-one
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $159
- Updated
- 2025/07/31
- Product number
- B534080
- Product name
- 4-Bromo-9H-fluoren-9-one
- Packaging
- 10mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- 9634AL
- Product name
- 4-Bromo-9H-fluoren-9-one
- Packaging
- 1g
- Price
- $266
- Updated
- 2021/12/16
- Product number
- CM252902
- Product name
- 4-Bromo-9H-fluoren-9-one
- Purity
- 95%
- Packaging
- 5g
- Price
- $449
- Updated
- 2021/12/16
- Product number
- CD41001035
- Product name
- 4-Bromo-9H-fluoren-9-one
- Purity
- 95+%
- Packaging
- 5g
- Price
- $475
- Updated
- 2021/12/16
4-Bromo-9H-fluoren-9-one Chemical Properties,Usage,Production
Synthesis
54245-41-9
4269-17-4
To a 500 mL three-necked flask were sequentially added 50 mL of benzyl cyanide, 70.7 g (0.3 mol) o-dibromobenzene and 68.4 g (0.45 mol) cesium fluoride. Under argon protection, 0.86 g (1.5 mmol) of bis(dibenzylideneacetone)palladium, 2.86 g (15 mmol) of thiophene-2-carboxylate, and 7.0 g (15 mmol) of 1,1'-bis(di-tert-butylphosphino)ferrocene were added as catalyst. The reaction mixture was stirred at 150°C for 24 hours. After completion of the reaction, it was cooled to room temperature, the reaction mixture was filtered and the filtrate was distilled to remove benzyl cyanide to give the crude product 2-bromo-2'-carbonitrile biphenyl. The crude product was transferred to another 500 mL three-necked flask and 80 mL of glacial acetic acid and 80 mL of concentrated sulfuric acid were added. After heating and refluxing for 12 hours, it was cooled to room temperature and filtered to obtain a dark yellow solid. The solid was washed with 100 mL of water and 100 mL of methanol and finally recrystallized from 200 mL of isopropylbenzene to give 61.9 g (80% yield) of 4-bromo-9H-fluoren-9-one as a yellow solid.
References
[1] Patent: CN105237379, 2016, A. Location in patent: Paragraph 0006; 0016
[2] Organic Letters, 2013, vol. 15, # 11, p. 2742 - 2745
[3] Australian Journal of Chemistry, 1974, vol. 27, p. 2209 - 2228
4-Bromo-9H-fluoren-9-one Preparation Products And Raw materials
Raw materials
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View Lastest Price from 4-Bromo-9H-fluoren-9-one manufacturers
- Product
- 4-bromo-9H-fluoren-9-one 4269-17-4
- Price
- US $0.00-0.00/G
- Min. Order
- 10G
- Purity
- 0.98
- Supply Ability
- 500KG
- Release date
- 2023-09-27
- Product
- 4-Bromo-9H-fluoren-9-one 4269-17-4
- 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
- 2024-01-02
- Product
- 4-Bromo-9H-fluoren-9-one 4269-17-4
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- Customized
- Release date
- 2019-07-03