Acenaphthylene, 5,6-dibromo-1,2-dihydro-
- Product Name
- Acenaphthylene, 5,6-dibromo-1,2-dihydro-
- CAS No.
- 19190-91-1
- Chemical Name
- Acenaphthylene, 5,6-dibromo-1,2-dihydro-
- Synonyms
- 5,6-dibromo-1,2-dihydroacenaphthene;Acenaphthylene, 5,6-dibromo-1,2-dihydro-
- CBNumber
- CB41244364
- Molecular Formula
- C12H8Br2
- Formula Weight
- 312
- MOL File
- 19190-91-1.mol
Acenaphthylene, 5,6-dibromo-1,2-dihydro- Property
- Melting point:
- 169-171 °C(Solv: hexane (110-54-3))
- Boiling point:
- 383.0±42.0 °C(Predicted)
- Density
- 1.865±0.06 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- soluble in Dichloromethane, Hexanes
- form
- Solid
- color
- Orange
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory 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
- D422940
- Product name
- 5,6-Dibromoacenaphthene
- Packaging
- 500mg
- Price
- $140
- Updated
- 2021/12/16
- Product number
- D422940
- Product name
- 5,6-Dibromoacenaphthene
- Packaging
- 1g
- Price
- $250
- Updated
- 2021/12/16
- Product number
- 063627
- Product name
- 5,6-Dibromo-1,2-dihydroacenaphthylene
- Packaging
- 500mg
- Price
- $115
- Updated
- 2021/12/16
- Product number
- A210921
- Product name
- 5,6-Dibromo-1,2-dihydroacenaphthylene
- Purity
- 95%
- Packaging
- 250mg
- Price
- $11
- Updated
- 2021/12/16
- Product number
- A210921
- Product name
- 5,6-Dibromo-1,2-dihydroacenaphthylene
- Purity
- 95%
- Packaging
- 1g
- Price
- $29
- Updated
- 2021/12/16
Acenaphthylene, 5,6-dibromo-1,2-dihydro- Chemical Properties,Usage,Production
Uses
5,6-Dibromoacenaphthene is a byproduct during the synthesis of 3,?5,?6-?Tribromo-?1,?2-?dihydroacenaphthylene (T771875), a derived from Acenaphthene (1,2-Dihydro Acenaphthylene) (D448330), which is a polycyclic aromatic hydrocarbons as carcinogenic agents.
Synthesis
83-32-9
19190-91-1
The general procedure for the synthesis of 5,6-dibromo-1,2-dihydroacenaphthene from acenaphthene was as follows: compound C (4,5-dibromonaphthalene) was prepared as follows: 37.01 g (240 mmol) of acenaphthene and 200 mL of N,N-dimethylformamide (DMF) were added to a 500 mL two-necked flask, and the reaction temperature was maintained at 13 °C with continuous stirring. 103.23 g (580 mmol) of N-bromosuccinimide (NBS) was dissolved in 200 mL of DMF and then slowly added dropwise to the DMF solution of acenaphthene through a dropping funnel, and the dropwise process was completed in about 5 hours. After the dropwise addition, the reaction mixture was continued to be stirred at room temperature overnight. After completion of the reaction, vacuum filtration was carried out to collect the solid residue. The residue obtained by filtration was mixed with 100 mL of ethanol and refluxed for 10 hours. The reaction mixture was cooled at room temperature and filtered again to obtain 24.3 g of off-white solid product in 32.45% yield.
References
[1] Patent: CN108409720, 2018, A. Location in patent: Paragraph 0066-0068
[2] Patent: CN108440424, 2018, A. Location in patent: Paragraph 0065-0067
[3] Journal of Organic Chemistry, 2011, vol. 76, # 15, p. 6383 - 6388
[4] Chinese Chemical Letters, 2014, vol. 25, # 10, p. 1399 - 1402
[5] European Journal of Inorganic Chemistry, 2016, vol. 2016, # 21, p. 3513 - 3523
Acenaphthylene, 5,6-dibromo-1,2-dihydro- Preparation Products And Raw materials
Raw materials
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View Lastest Price from Acenaphthylene, 5,6-dibromo-1,2-dihydro- manufacturers
- Product
- Acenaphthylene, 5,6-dibromo-1,2-dihydro- 19190-91-1
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 200kg
- Release date
- 2020-01-09