2-AMINO-6-BROMOTHIAZOLO[4,5-B]PYRAZINE
- Product Name
- 2-AMINO-6-BROMOTHIAZOLO[4,5-B]PYRAZINE
- CAS No.
- 112342-72-0
- Chemical Name
- 2-AMINO-6-BROMOTHIAZOLO[4,5-B]PYRAZINE
- Synonyms
- 2-AMINO-6-BROMOTHIAZOLO[4,5-B]PYRAZINE;Thiazolo[4,5-b]pyrazin-2-amine, 6-bromo-
- CBNumber
- CB72452796
- Molecular Formula
- C5H3BrN4S
- Formula Weight
- 231.07
- MOL File
- 112342-72-0.mol
2-AMINO-6-BROMOTHIAZOLO[4,5-B]PYRAZINE Property
- Boiling point:
- 366℃
- Density
- 2.078
- Flash point:
- 175℃
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- pka
- -3.63±0.50(Predicted)
- Appearance
- Off-white to yellow Solid
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
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
- A595130
- Product name
- 2-Amino-6-bromothiazolo[4,5-b]pyrazine
- Packaging
- 10g
- Price
- $1865
- Updated
- 2021/12/16
- Product number
- X9005
- Product name
- 2-Amino-6-bromothiazolo[4,5-b]pyrazine
- Packaging
- 250mg
- Price
- $174
- Updated
- 2021/12/16
- Product number
- FA153730
- Product name
- 2-Amino-6-bromothiazolo[4,5-b]pyrazine
- Packaging
- 25mg
- Price
- $200
- Updated
- 2021/12/16
- Product number
- FA153730
- Product name
- 2-Amino-6-bromothiazolo[4,5-b]pyrazine
- Packaging
- 50mg
- Price
- $300
- Updated
- 2021/12/16
- Product number
- FA153730
- Product name
- 2-Amino-6-bromothiazolo[4,5-b]pyrazine
- Packaging
- 100mg
- Price
- $400
- Updated
- 2021/12/16
2-AMINO-6-BROMOTHIAZOLO[4,5-B]PYRAZINE Chemical Properties,Usage,Production
Uses
2-Amino-6-bromothiazolo[4,5-b]pyrazine is derived from 2-Amino-3,5-dibromopyrazine (A604635), which is used in the preparation of conjugated polymers for neurotoxin detection and is an intermediate in the preparation of rho kinase (ROCK) inhibitors.
Synthesis
112342-70-8
112342-72-0
General procedure for the synthesis of 6-bromothiazolo[4,5-b]pyrazin-2-amine from ethyl (6-bromothiazolo[4,5-b]pyrazin-2-yl)carbamate: 2 N aqueous sodium hydroxide (7.91) was added to a methanolic (8 mL) suspension of ethyl (6-bromothiazolo[4,5-b]pyrazin-2-yl)carbamate (480 mg, 1.58 mmol). mL, 15.83 mmol). The mixture was heated under reflux conditions for 5 hours. Upon completion of the reaction, the mixture was acidified with 2 N HCl to pH < 7. Subsequently, the reaction mixture was neutralized with saturated sodium bicarbonate solution and extracted with ethyl acetate (3 × 10 mL). The organic layers were combined, washed sequentially with saturated sodium bicarbonate solution and saturated aqueous sodium chloride solution, and dried over anhydrous sodium sulfate. The organic phase was concentrated under reduced pressure to give the crude product. The precipitate was collected by filtration to afford 6-bromothiazolo[4,5-b]pyrazin-2-amine (334 mg, 91.0% yield) as a pale yellow solid.1H-NMR (DMSO-d6) δ: 8.37 (s, 1H), 8.59 (brs, 2H).
References
[1] Patent: EP2351744, 2011, A1. Location in patent: Page/Page column 74
[2] Heterocycles, 1987, vol. 26, # 3, p. 689 - 697
2-AMINO-6-BROMOTHIAZOLO[4,5-B]PYRAZINE Preparation Products And Raw materials
Raw materials
Preparation Products
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