3-Bromo-4,5-dimethylphenol
- Product Name
- 3-Bromo-4,5-dimethylphenol
- CAS No.
- 71942-14-8
- Chemical Name
- 3-Bromo-4,5-dimethylphenol
- Synonyms
- 3-Bromo-4,5-dimethylphenol;Phenol, 3-bromo-4,5-dimethyl-
- CBNumber
- CB23059638
- Molecular Formula
- C8H9BrO
- Formula Weight
- 201.06
- MOL File
- 71942-14-8.mol
3-Bromo-4,5-dimethylphenol Property
- Melting point:
- 103 °C
- Boiling point:
- 271.9±35.0 °C(Predicted)
- Density
- 1.471±0.06 g/cm3(Predicted)
- storage temp.
- Inert atmosphere,Room Temperature
- pka
- 9.43±0.23(Predicted)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
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
- 5714AQ
- Product name
- WXCD01005930
- Packaging
- 100mg
- Price
- $262.4
- Updated
- 2021/12/16
- Product number
- HCH0029980
- Product name
- 3-BROMO-4,5-DIMETHYLPHENOL
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $500.42
- Updated
- 2021/12/16
- Product number
- A160676
- Product name
- 3-Bromo-4,5-dimethylphenol
- Purity
- 97%
- Packaging
- 100mg
- Price
- $31
- Updated
- 2021/12/16
- Product number
- A160676
- Product name
- 3-Bromo-4,5-dimethylphenol
- Purity
- 97%
- Packaging
- 250mg
- Price
- $46
- Updated
- 2021/12/16
- Product number
- A160676
- Product name
- 3-Bromo-4,5-dimethylphenol
- Purity
- 97%
- Packaging
- 1g
- Price
- $113
- Updated
- 2021/12/16
3-Bromo-4,5-dimethylphenol Chemical Properties,Usage,Production
Uses
3-Bromo-4,5-dimethylphenol is a phenolic compound with an electrophilic bromine atom and two methyl groups on its benzene ring structure. This compound is used as an organic synthesis intermediate and can be used to prepare other phenolic derivatives or activity inhibitors.
Synthesis
576-23-8
71942-14-8
General procedure for the synthesis of 3-bromo-4,5-dimethylphenol from 1-bromo-2,3-dimethylbenzene: In a sealed tube, DPPE (0.431 g, 1.08 mmol), 4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.73 g, 13.5 mmol), (1,5-cyclooctadien-1-η5-indenyliridium(I) ( 0.449 g, 1.08 mmol) and 1-bromo-2,3-dimethylbenzene (1.00 g, 5.40 mmol) were dissolved in cyclohexane (6 mL) and the reaction was carried out at 100 °C for 50 hours. After completion of the reaction, the reaction mixture was concentrated and dissolved in acetone (5 mL), Oxone (3.32 g, 5.40 mmol) was added and stirred for 10 minutes. The reaction was quenched with saturated NaHSO3 solution and extracted with dichloromethane (DCM, 3 x 20 ml). The organic phases were combined, washed sequentially with saturated saline and deionized water and concentrated. The crude product was purified by silica gel column chromatography to afford 3-bromo-4,5-dimethylphenol (238 mg, 1.18 mmol, 22% yield) using dichloromethane as eluent.
References
[1] Patent: WO2017/201161, 2017, A1. Location in patent: Paragraph 0830
[2] Journal of the American Chemical Society, 2003, vol. 125, # 26, p. 7792 - 7793
3-Bromo-4,5-dimethylphenol Preparation Products And Raw materials
Raw materials
Preparation Products
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