1-tert-butyl-1H-pyrazol-4-amine
- Product Name
- 1-tert-butyl-1H-pyrazol-4-amine
- CAS No.
- 97421-13-1
- Chemical Name
- 1-tert-butyl-1H-pyrazol-4-amine
- Synonyms
- 1-tert-butylpyrazol-4-amine;1-tert-butyl-1H-pyrazol-4-amine;1H-Pyrazol-4-aMine, 1-(1,1-diMethylethyl)-
- CBNumber
- CB22515577
- Molecular Formula
- C7H13N3
- Formula Weight
- 139.2
- MOL File
- 97421-13-1.mol
1-tert-butyl-1H-pyrazol-4-amine Property
- Boiling point:
- 247.5±13.0 °C(Predicted)
- Density
- 1.05±0.1 g/cm3(Predicted)
- storage temp.
- 2-8°C(protect from light)
- pka
- 3.76±0.10(Predicted)
- Appearance
- Brown to reddish brown Solid
- InChI
- InChI=1S/C7H13N3/c1-7(2,3)10-5-6(8)4-9-10/h4-5H,8H2,1-3H3
- InChIKey
- JPUFJDDEDJUDHE-UHFFFAOYSA-N
- SMILES
- N1(C(C)(C)C)C=C(N)C=N1
Safety
- HS Code
- 2933199090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
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.
P330Rinse mouth.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
P403+P233Store in a well-ventilated place. Keep container tightly closed.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- T205585
- Product name
- 1-(tert-Butyl)-1H-pyrazol-4-amine
- Packaging
- 500mg
- Price
- $350
- Updated
- 2021/12/16
- Product number
- 058822
- Product name
- 1-tert-Butyl-1H-pyrazol-4-ylamine
- Purity
- 95+%
- Packaging
- 250mg
- Price
- $78
- Updated
- 2021/12/16
- Product number
- W9823
- Product name
- 1-(tert-Butyl)-1H-pyrazol-4-amine
- Packaging
- 250mg
- Price
- $151
- Updated
- 2021/12/16
- Product number
- 058822
- Product name
- 1-tert-Butyl-1H-pyrazol-4-ylamine
- Purity
- 95+%
- Packaging
- 1g
- Price
- $195
- Updated
- 2021/12/16
- Product number
- OR946666
- Product name
- 1-tert-Butyl-1H-pyrazol-4-amine
- Purity
- 95%
- Packaging
- 250mg
- Price
- $230
- Updated
- 2021/12/16
1-tert-butyl-1H-pyrazol-4-amine Chemical Properties,Usage,Production
Synthesis
97421-12-0
97421-13-1
The general procedure for the synthesis of 4-amino-1-tert-butylpyrazole from 1-(tert-butyl)-4-nitro-1H-pyrazole is as follows: to a solution of 1-tert-butyl-4-nitro-1H-pyrazole (1.10 g, 6.5 mmol) in methanol (20 mL) was added a 10% palladium-carbon catalyst (containing 50% water, 442 mg). The reaction mixture was stirred in a hydrogen atmosphere for 3 hours at room temperature. Upon completion of the reaction, the catalyst was removed by filtration and the filtrate was concentrated under reduced pressure. The resulting residue was purified by column chromatography (silica gel as stationary phase, eluent ratio hexane/ethyl acetate = 70/30 → 0/100) to give 4-amino-1-tert-butylpyrazole (838 mg, 92% yield). The structure of the product was confirmed by 1H-NMR (CDCl3, 300 MHz): δ 1.53 (9H, s), 2.86 (2H, br s), 7.15 (1H, s), 7.19 (1H, s).
References
[1] Patent: WO2007/4749, 2007, A1. Location in patent: Page/Page column 155
[2] Bioorganic and Medicinal Chemistry, 2010, vol. 18, # 20, p. 7150 - 7163
[3] Patent: WO2012/61337, 2012, A1. Location in patent: Page/Page column 48
[4] Bioorganic and Medicinal Chemistry Letters, 2018, vol. 28, # 2, p. 145 - 151
1-tert-butyl-1H-pyrazol-4-amine Preparation Products And Raw materials
Raw materials
Preparation Products
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