ChemicalBook > CAS DataBase List > 1-ethyl-1H-pyrazol-4-amine
1-ethyl-1H-pyrazol-4-amine
- Product Name
- 1-ethyl-1H-pyrazol-4-amine
- CAS No.
- 876343-24-7
- Chemical Name
- 1-ethyl-1H-pyrazol-4-amine
- Synonyms
- 1-ethylpyrazol-4-amine;4-Amino-1-ethylpyrazole;1-ethyl-1H-pyrazol-4-amine;4-Amino-1-ethyl-1H-pyrazole;1H-Pyrazol-4-amine, 1-ethyl-;1-ethyl-1H-pyrazol-4-amine hydrochloride;1-ethyl-1H-pyrazol-4-amine(SALTDATA: HCl)
- CBNumber
- CB11532949
- Molecular Formula
- C5H9N3
- Formula Weight
- 111.15
- MOL File
- 876343-24-7.mol
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1-ethyl-1H-pyrazol-4-amine Property
- Boiling point:
- 238.6±13.0 °C(Predicted)
- Density
- 1.16±0.1 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- pka
- 3.72±0.10(Predicted)
- CAS DataBase Reference
- 876343-24-7
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Safety
- HazardClass
- IRRITANT
- HS Code
- 2933199090
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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
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P312Call a POISON CENTER or doctor/physician if you feel unwell.
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N-Bromosuccinimide Price
AK Scientific
- Product number
- 3909AC
- Product name
- 1-Ethyl-1H-pyrazol-4-amine
- Packaging
- 250mg
- Price
- $103
- Updated
- 2021/12/16
AK Scientific
- Product number
- 3909AC
- Product name
- 1-Ethyl-1H-pyrazol-4-amine
- Packaging
- 1g
- Price
- $136
- Updated
- 2021/12/16
BroadPharm
- Product number
- BP-21178
- Product name
- 1-ETHYL-1H-PYRAZOL-4-AMINE
- Packaging
- 500mg
- Price
- $150
- Updated
- 2021/12/16
Matrix Scientific
- Product number
- 034033
- Product name
- 1-Ethyl-1H-pyrazol-4-ylamine hydrochloride
- Packaging
- 500mg
- Price
- $195
- Updated
- 2021/12/16
Apolloscientific
- Product number
- OR110643
- Product name
- 4-Amino-1-ethyl-1H-pyrazole
- Packaging
- 1g
- Price
- $225
- Updated
- 2021/12/16
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1-ethyl-1H-pyrazol-4-amine Chemical Properties,Usage,Production
Uses
1-ethyl-1H-pyrazol-4-amine can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.
Synthesis
General Procedure for the Synthesis of 4-Amino-l-N-alkylated-pyrazolesA solution of 4-nitropyrazole (300mg, 2.65mmol), potassium carbonate (2eq) and the alkylating reagent (l .leq) in acetonitrile (lOmL) was heated at 60??C for 18h. After cooling to rt the mixture was diluted with EtOAc and washed with water. The organic phase was collected, dried (MgS04) and concentrated in vacuo. The crude residue was dissolved in methanol (lOmL), palladium on carbon (50mg) was added and the reaction was stirred under a balloon of hydrogen for 18h. The resulting mixture was filtered through Celite and the filtrate concentrated in vacuo to give the desired product. Procedure B:Example 11: 2-((6-( 1 -Ethyl- 1 H-pyrazo 1-4-ylamino)- 1 H-pyrazo lo [3 ,4-d]pyrimidin- 1 -yl) methyl)benzonitrileThe following compound was made according to the procedure in Example 1, using 1-ethyl- lH-pyrazo 1-4-amine. 1 -ethyl- lH-pyrazol-4-amine was prepared by Procedure A using ethyl iodide as alkylating agent: 1H NMR (d6-DMSO) |? 9.94 (s, 1H), 8.94 (s, 1H), 8.10 (s, 2H), 7.91 (dd, 1H), 7.66 (td, 1H), 7.49-7.53 (m, 2H), 7.35-7.37 (m, 1H), 5.76 (s, 2H), 4.11 (q, 2H), 1.35 (t, 3H); LC-MS method B, (ES+) 345.1, RT = 8.58min.
1-ethyl-1H-pyrazol-4-amine Preparation Products And Raw materials
Raw materials
Preparation Products
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