5-(TrifluoroMethyl)benzoxazole
- Product Name
- 5-(TrifluoroMethyl)benzoxazole
- CAS No.
- 1267217-46-8
- Chemical Name
- 5-(TrifluoroMethyl)benzoxazole
- Synonyms
- 5-(TrifluoroMethyl)benzoxazole;Benzoxazole, 5-(trifluoromethyl)-;5-(TrifluoroMethyl)benzo[d]oxazole;5-(trifluoromethyl)-1,3-benzoxazole;5-(Trifluoromethyl)-1,3-benzoxazole95%;5-(Trifluoromethyl)-1,3-benzoxazole 95%
- CBNumber
- CB32596944
- Molecular Formula
- C8H4F3NO
- Formula Weight
- 187.12
- MOL File
- 1267217-46-8.mol
5-(TrifluoroMethyl)benzoxazole Property
- Melting point:
- 43-44 °C(Solv: hexane (110-54-3))
- Boiling point:
- 195.6±35.0 °C(Predicted)
- Density
- 1.406±0.06 g/cm3(Predicted)
- storage temp.
- 2-8°C
- pka
- -3.31±0.10(Predicted)
- Appearance
- Colorless to light yellow Liquid
Safety
- HS Code
- 2934999090
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.
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
- T897655
- Product name
- 5-(Trifluoromethyl)benzoxazole
- Packaging
- 100mg
- Price
- $65
- Updated
- 2021/12/16
- Product number
- T897655
- Product name
- 5-(Trifluoromethyl)benzoxazole
- Packaging
- 500mg
- Price
- $240
- Updated
- 2021/12/16
- Product number
- 4H56-3-N1
- Product name
- 5-(Trifluoromethyl)-1,3-benzoxazole
- Purity
- 95%
- Packaging
- 1g
- Price
- $240
- Updated
- 2021/12/16
- Product number
- 5268AA
- Product name
- 5-(Trifluoromethyl)benzo[d]oxazole
- Packaging
- 1g
- Price
- $265
- Updated
- 2021/12/16
- Product number
- PC300509
- Product name
- 5-(Trifluoromethyl)-1,3-benzoxazole
- Purity
- 95%
- Packaging
- 5g
- Price
- $350
- Updated
- 2021/12/16
5-(TrifluoroMethyl)benzoxazole Chemical Properties,Usage,Production
Synthesis
400-99-7
122-51-0
1267217-46-8
The general procedure for the synthesis of 5-trifluoromethylbenzoxazole from 2-nitro-4-trifluoromethylphenol and triethyl orthoformate was as follows: 2-nitro-4-(trifluoromethyl)phenol (500 mg, 2.41 mmol) and a palladium/carbon catalyst (200 mg) were added to ethanol (10 ml) at 0 °C and under argon protection. After hydrogen was passed to replace the air in the reaction system, the reaction was stirred at room temperature overnight. Upon completion of the reaction, the catalyst was removed by diatomaceous earth filtration and the filtrate was concentrated under reduced pressure. To the concentrated residue, triethyl orthoformate (2.4 ml, 14.5 mmol) was added and p-toluenesulfonic acid monohydrate (23 mg, 0.12 mmol) was added dropwise as a catalyst. The reaction mixture was heated to reflux and stirred for 3 hours under argon protection. Upon completion of the reaction, the reaction solution was concentrated to dryness. The resulting crude product was purified by silica gel column chromatography (eluent: hexane/ethyl acetate) to give 5-trifluoromethylbenzoxazole (182 mg, 40% yield).
References
[1] Patent: JP2016/124812, 2016, A. Location in patent: Paragraph 0108
5-(TrifluoroMethyl)benzoxazole Preparation Products And Raw materials
Raw materials
Preparation Products
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