1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE
- Product Name
- 1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE
- CAS No.
- 132274-70-5
- Chemical Name
- 1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE
- Synonyms
- 1-Phenylpyrazole-5-carbaldehyde;2-phenylpyrazole-3-carbaldehyde;2-phenyl-3-pyrazolecarboxaldehyde;1-phenyl-1H-pyrazol-5-carbaldehyde;1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE;1-PHENYL-1H-PYRAZOLE-5-CARBOXALDEHYDE;1H-Pyrazole-5-carboxaldehyde, 1-phenyl-;1-phenyl-1H-pyrazole-5-carbaldehyde(SALTDATA: FREE)
- CBNumber
- CB9324842
- Molecular Formula
- C10H8N2O
- Formula Weight
- 172.18
- MOL File
- 132274-70-5.mol
1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE Property
- Melting point:
- 31 °C
- Boiling point:
- 312.7±15.0 °C(Predicted)
- Density
- 1.15±0.1 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- pka
- -2.50±0.10(Predicted)
- Appearance
- Colorless to off-white <31°C Solid,>31°C Liquid
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
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
- P321648
- Product name
- 1-phenyl-1H-pyrazole-5-carbaldehyde
- Packaging
- 50mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- CS-0060550
- Product name
- 1-Phenyl-1H-pyrazole-5-carbaldehyde
- Purity
- 97.54%
- Packaging
- 100mg
- Price
- $49
- Updated
- 2021/12/16
- Product number
- CS-0060550
- Product name
- 1-Phenyl-1H-pyrazole-5-carbaldehyde
- Purity
- 97.54%
- Packaging
- 250mg
- Price
- $60
- Updated
- 2021/12/16
- Product number
- OR23388
- Product name
- 1-Phenyl-1H-pyrazole-5-carboxaldehyde
- Packaging
- 250mg
- Price
- $82
- Updated
- 2021/12/16
- Product number
- 4H15-1-H4
- Product name
- 1-Phenyl-1H-pyrazole-5-carboxaldehyde
- Packaging
- 250mg
- Price
- $90
- Updated
- 2021/12/16
1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE Chemical Properties,Usage,Production
Synthesis
1126-00-7
68-12-2
132274-70-5
Example A: Synthesis of 1-phenyl-1H-pyrazole-5-carbaldehyde Experimental Steps: A heptane solution of n-butyllithium (2.61 M, 5.3 mL, 13.9 mmol) was slowly added dropwise to a solution of 1-phenyl-1H-pyrazole (2.0 g, 13.9 mmol) in anhydrous THF (60 mL) cooled to -78 °C under nitrogen atmosphere. The reaction mixture was stirred at -78 °C for 2 hours. Subsequently, a solution of anhydrous N,N-dimethylformamide (1.1 mL, 13.9 mmol) in anhydrous THF (8 mL) was slowly added. The mixture was continued to be stirred at -78 °C for 1 hour, then slowly warmed to room temperature and stirred for 18 hours. Upon completion of the reaction, the reaction was quenched with water (10 mL) and subsequently extracted three times with dichloromethane. The organic phases were combined, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The crude product was purified by fast chromatography (column size: diameter 6 cm, height 12 cm; eluent: n-hexane/ethyl acetate=8:2, 30 mL; Rf=0.24) to give a yellow oil, which crystallized as a yellow solid after cooling, melting point: 31 °C, yield: 2.15 g (90%). Product Characterization: Molecular formula: C10H8N2O (172.2) Mass Spectrum (EI): m/z (relative intensity) = 172 [M+, 100], 144 [M-CO, 69] IR spectrum (pure): ν (cm-1) = 3063 (aromatic CH), 2923 (fatty CH), 2854 (CH), 1683 (C=O), 1596, 1517, 1499 (C=C), 763, 694 (CH) 1H-NMR (CDCl3): δ (ppm) = 7.11 (d, J=2.1 Hz, 1H, pyrazole-4-CH), 7.46-7.56 (m, 5H, phenyl-CH), 7.76 (d, J=2.0 Hz, 1H, pyrazole-3-CH), 9.88 (s, 1H, CHO) 13C-NMR (CDCl3): δ (ppm) = 112.5 (1C, pyrazole-4-CH), 125.8 (2C, phenyl-CH, neighboring), 129.4 (1C, phenyl-CH, para), 129.6 (2C, phenyl-CH, interstitial), 139.0 (1C, phenyl-C, tetralin), 140.3 (1C, pyrazole-5- C), 140.7 (1C, pyrazole-3-CH), 180.2 (1C, CHO)
References
[1] Bioorganic and Medicinal Chemistry, 2008, vol. 16, # 6, p. 2992 - 3001
[2] Patent: EP1982987, 2008, A1. Location in patent: Page/Page column 13-14; 18-19
[3] Journal of Medicinal Chemistry, 2011, vol. 54, # 19, p. 6704 - 6713
[4] Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990, # 10, p. 2749 - 2750
1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE Preparation Products And Raw materials
Raw materials
Preparation Products
1-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE Suppliers
- Tel
- 18210857532; 18210857532
- Fax
- 86-10-82849933
- jkinfo@jkchemical.com
- Country
- China
- ProdList
- 96815
- Advantage
- 76
- Tel
- 001-857-928-2050 or 1-888-588-9418
- Fax
- 001-617-206-9595
- sales@chemreagents.com
- Country
- United States
- ProdList
- 10186
- Advantage
- 62
- Tel
- 025-83697070
- Fax
- +86-25-83453306
- info@chemlin.com.cn
- Country
- China
- ProdList
- 16075
- Advantage
- 64
- Tel
- 025-58395930
- Fax
- 025-5861-9182
- sales@acornpharma.com
- Country
- China
- ProdList
- 982
- Advantage
- 60
- Tel
- 021-61551611 13296011611
- Fax
- ＋86 21-50676805
- contact@trustwe.com
- Country
- China
- ProdList
- 9895
- Advantage
- 58
- Tel
- 800-810-5118
- Fax
- +86-10-84193589
- cnchemical@thermofisher.com
- Country
- China
- ProdList
- 17770
- Advantage
- 75
- Tel
- 021-31261262/ 49 (0)17662837245
- Fax
- (0)21-33250524
- sales@novochemy.com
- Country
- Germany
- ProdList
- 6328
- Advantage
- 58
- Tel
- 4009209199
- Fax
- 86-021-52271987
- sales@9dingchem.com
- Country
- China
- ProdList
- 22514
- Advantage
- 55
- Tel
- +86-021-50935922
- Fax
- +86-021-33847795
- Country
- China
- ProdList
- 7865
- Advantage
- 55
- Tel
- +86-28-85122536 85324413
- Fax
- +86-28-85326443
- market@astatech.cn
- Country
- China
- ProdList
- 8026
- Advantage
- 55