1-Benzyl-4-bromo-1H-pyrazole
- Product Name
- 1-Benzyl-4-bromo-1H-pyrazole
- CAS No.
- 50877-41-3
- Chemical Name
- 1-Benzyl-4-bromo-1H-pyrazole
- Synonyms
- Albb-006334;1-benzyl-4-bromopyazole;1-Benzyl-4-bromopyrazole;1-Benzyl-4-bromo-1H-pyrazole;4-BroMo-1-benzyl-1H-pyrazole;4-bromo-1-(phenylmethyl)pyrazole;4-Bromo-1-benzyl-1H-pyrazole 97%;4-BroMo-1-(phenylMethyl)--1H-pyrazole;1H-Pyrazole, 4-bromo-1-(phenylmethyl)-;1-benzyl-4-bromo-1H-pyrazole(SALTDATA: FREE)
- CBNumber
- CB61262188
- Molecular Formula
- C10H9BrN2
- Formula Weight
- 237.1
- MOL File
- 50877-41-3.mol
1-Benzyl-4-bromo-1H-pyrazole Property
- Flash point:
- >110℃
- storage temp.
- 2-8°C
- form
- solid
- color
- Off-white
Safety
- Hazard Codes
- Xi
- HazardClass
- IRRITANT
- HS Code
- 2933199090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310Immediately call a POISON CENTER or doctor/physician.
P363Wash contaminated clothing before reuse.
P403Store in a well-ventilated place.
N-Bromosuccinimide Price
- Product number
- B687070
- Product name
- 4-Bromo-1-(phenylmethyl)--1H-pyrazole
- Packaging
- 10g
- Price
- $1260
- Updated
- 2021/12/16
- Product number
- Z0647
- Product name
- 1-Benzyl-4-bromo-1H-pyrazole
- Packaging
- 100g
- Price
- $611
- Updated
- 2021/12/16
- Product number
- HCH0009948
- Product name
- 1-BENZYL-4-BROMO-1H-PYRAZOLE
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $752.14
- Updated
- 2021/12/16
- Product number
- FB117271
- Product name
- 1-Benzyl-4-bromo-1H-pyrazole
- Packaging
- 500mg
- Price
- $200
- Updated
- 2021/12/16
- Product number
- FB117271
- Product name
- 1-Benzyl-4-bromo-1H-pyrazole
- Packaging
- 2g
- Price
- $578
- Updated
- 2021/12/16
1-Benzyl-4-bromo-1H-pyrazole Chemical Properties,Usage,Production
Uses
4-Bromo-1-(phenoxymethyl)-1H-pyrazole, can be used in the preparation of some Amines and Amino Acids containing the Pyrazole nucleus. Thease compounds are of interest beacuse of their close structural resemblance to the imidazole derivatives, such as Histamine and Histidine.
Synthesis
10199-67-4
50877-41-3
General method: synthesis of 1-benzyl-4-chloro-3,5-dimethyl-1H-pyrazole. In a 16 mL reaction flask equipped with a magnetic stirring bar, 1-benzyl-3,5-dimethyl-1H-pyrazole (196 mg, 1.05 mmol), water (0.7 mL) and ethyl acetate (0.3 mL) were added sequentially. Subsequently, sodium chloride (123 mg, 2 mmol) was added and the reaction flask was placed in a room temperature water bath to control the exothermic nature of the reaction. Next, Oxone (322 mg, 0.52 mmol KHSO5) was added and the reaction vial was sealed. The reaction was carried out under continuous vigorous stirring and the progress of the reaction was monitored by TLC (about 1 h) until the feedstock was completely consumed. Upon completion of the reaction, the remaining oxidant was reduced using solid sodium bisulfite until starch iodide paper tested negative. The reaction mixture was diluted with the addition of water (5 mL) and extracted with a 1:1 hexane/ether solvent mixture (3 x 5 mL). The organic phases were combined, dried with anhydrous magnesium sulfate and concentrated under reduced pressure to give the crude product. The crude product was purified by fast column chromatography (column size: 14×1 cm, eluent: 9:1 hexane/ethyl acetate) to afford pure 1-benzyl-4-chloro-3,5-dimethyl-1H-pyrazole as a light yellow oil (215 mg, 93% yield).
References
[1] Tetrahedron Letters, 2017, vol. 58, # 43, p. 4111 - 4114
[2] Journal of the American Chemical Society, 1949, vol. 71, p. 4000
1-Benzyl-4-bromo-1H-pyrazole Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 1-Benzyl-4-bromo-1H-pyrazole manufacturers
- Product
- 1-Benzyl-4-bromo-1H-pyrazole 50877-41-3
- Price
- US $6.68/KG
- Min. Order
- 1KG
- Purity
- 97%-99%
- Supply Ability
- 1kg-1000kg
- Release date
- 2020-01-08