ChemicalBook > CAS DataBase List > 1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE

1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE

Product Name
1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE
CAS No.
63874-95-3
Chemical Name
1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE
Synonyms
1-Benzylpyrazole-4-carbaldehyde;1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE;1-(Benzyl)-1H-pyrazol-4-carbaldehyde;1-benzyl-1H-pyrazole-4-carboxaldehyde;1-Benzyl-1H-pyrazole-4-carbaldehyde;1-(Phenylmethyl)-1H-pyrazole-4-carboxaldehyde;1H-Pyrazole-4-carboxaldehyde,1-(phenylMethyl)-
CBNumber
CB61491168
Molecular Formula
C11H10N2O
Formula Weight
186.21
MOL File
63874-95-3.mol
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1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE Property

Melting point:
44.0 to 48.0 °C
Boiling point:
144°C/0.5mmHg(lit.)
Density 
1.12±0.1 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
solubility 
soluble in Methanol
form 
powder to lump to clear liquid
pka
-0.07±0.10(Predicted)
color 
White or Colorless to Light yellow
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Safety

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

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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
OTV000352
Product name
1-Benzyl-1H-pyrazole-4-carbaldehyde
Purity
Aldrich
Packaging
1g
Price
$259
Updated
2025/07/31
TCI Chemical
Product number
B5404
Product name
1-Benzyl-1H-pyrazole-4-carboxaldehyde
Purity
>98.0%(GC)
Packaging
200mg
Price
$56
Updated
2025/07/31
TCI Chemical
Product number
B5404
Product name
1-Benzyl-1H-pyrazole-4-carboxaldehyde
Purity
>98.0%(GC)
Packaging
1g
Price
$162
Updated
2025/07/31
TRC
Product number
B288865
Product name
1-Benzyl-1H-pyrazole-4-carboxaldehyde
Packaging
1g
Price
$210
Updated
2021/12/16
TRC
Product number
B288865
Product name
1-Benzyl-1H-pyrazole-4-carboxaldehyde
Packaging
100mg
Price
$50
Updated
2021/12/16
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1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE Chemical Properties,Usage,Production

Synthesis

70817-17-3

63874-95-3

At room temperature, (1-benzyl-1H-pyrazol-4-yl)methanol (190 mg, 1.0 mmol) was dissolved in dichloromethane (8 mL) and Dess-Martin periodinane (670 mg, 1.58 mmol) was added. The reaction mixture was stirred at room temperature for 1.5 h. After stirring, the reaction was quenched with a mixture of saturated sodium thiosulfate solution and 10% sodium bicarbonate solution (1:1, v/v) and stirring was continued for 30 min. Subsequently, the reaction mixture was extracted with dichloromethane (3 x 30 mL). The organic phases were combined, washed sequentially with saturated aqueous sodium bicarbonate and brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The crude product was purified by fast column chromatography (Isco CombiFlash, eluent: 0-40% ethyl acetate/heptane) to afford 1-benzyl-1H-pyrazole-4-carbaldehyde (86 mg, 46% yield). The product was confirmed by 1H NMR (400 MHz, CDCl3): δ 5.35 (s, 2H), 7.27-7.30 (m, 2H), 7.36-7.43 (m, 3H), 7.88 (s, 1H), 8.01 (s, 1H), 9.85 (s, 1H); LCMS-MS (ESI+) m/z: 186.90 ([M+H ]+).

References

[1] Patent: US2008/4327, 2008, A1. Location in patent: Page/Page column 76
[2] Patent: WO2005/42534, 2005, A2. Location in patent: Page/Page column 42-43

1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE Preparation Products And Raw materials

Raw materials

Preparation Products

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1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE Suppliers

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63874-95-3, 1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDERelated Search:

3-PHENYL-2-(PHENYLCARBONYL)INDENO[3,2-C]PYRAZOL-4-ONE 3-(TERT-BUTYL)-2-((4-CHLOROPHENYL)CARBONYL)INDENO[3,2-C]PYRAZOL-4-ONE 1-BENZYL-3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLIC ACID 5-AMINO-1-BENZYL-1H-PYRAZOLE-4-CARBOXYLIC ACID ETHYL ESTER 3-(TERT-BUTYL)-2-(PHENYLCARBONYL)INDENO[3,2-C]PYRAZOL-4-ONE METHYL 3-(([1-(4-CHLOROBENZOYL)-3-METHYL-1H-PYRAZOL-4-YL]CARBONYL)AMINO)-2-THIOPHENECARBOXYLATE 5-AMINO-1-(4-CHLORO-BENZYL)-1H-PYRAZOLE-4-CARBOXYLIC ACID ETHYL ESTER AKOS B006404 1-((2,4-DICHLOROPHENYL)CARBONYL)-3-(4-METHOXYPHENYL)INDENO[2,3-D]PYRAZOL-4-ONE 7-(2,4-DICHLOROPHENYL)PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXAMIDE 4,5-DIHYDRO-7-[3-(TRIFLUOROMETHYL)PHENYL]PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXAMIDE 7-[3-(TRIFLUOROMETHYL)PHENYL]PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXAMIDE 1-(PHENYLCARBONYL)-3-(2-THIENYL)INDENO[2,3-D]PYRAZOL-4-ONE 1-(1-BENZYL-3,5-DIMETHYL-1H-PYRAZOL-4-YL)-ETHANONE 3-(4-METHOXYPHENYL)-2-(PHENYLCARBONYL)INDENO[3,2-C]PYRAZOL-4-ONE (3,4-DIHYDROQUINOLIN-1(2H)-YL)(5,7-DIPHENYLPYRAZOLO[1,5-A]PYRIMIDIN-3-YL)METHANONE

  • 1-benzyl-1H-pyrazole-4-carboxaldehyde
  • 1H-Pyrazole-4-carboxaldehyde,1-(phenylMethyl)-
  • 1-(Benzyl)-1H-pyrazol-4-carbaldehyde
  • 1-Benzylpyrazole-4-carbaldehyde
  • 1-(Phenylmethyl)-1H-pyrazole-4-carboxaldehyde
  • 1-BENZYL-1H-PYRAZOLE-4-CARBALDEHYDE
  • 1-Benzyl-1<i>H</i>-pyrazole-4-carbaldehyde
  • 63874-95-3
  • Heterocyclic Building Blocks