21686-05-5

Basic information

• Product Name: 1-(1,5-DIMETHYL-1H-PYRAZOL-4-YL)ETHANONE
• Synonyms: 1-(1,5-dimethyl-4-pyrazolyl)ethanone;1-(1,5-dimethylpyrazol-4-yl)ethanone;Ethanone,1-(1,5-dimethyl-1H-pyrazol-4-yl)-
• CAS NO: 21686-05-5
• Molecular Formula: C₇H₁₀N₂O
• Molecular Weight: 138.17
• Mol File: 21686-05-5.mol
• Article Data: 5

Chemical Properties

• Melting Point: 78-79 °C
• Boiling Point: 231.8°C at 760 mmHg
• Flash Point: 94°C
• Appearance: /
• Density: 1.09g/cm³
• Vapor Pressure: 0.061mmHg at 25°C
• Refractive Index: 1.536
• PKA: 0.41±0.10(Predicted)
• CAS DataBase Reference: 1-(1,5-DIMETHYL-1H-PYRAZOL-4-YL)ETHANONE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(1,5-DIMETHYL-1H-PYRAZOL-4-YL)ETHANONE(21686-05-5)
• EPA Substance Registry System: 1-(1,5-DIMETHYL-1H-PYRAZOL-4-YL)ETHANONE(21686-05-5)

Safety Data

• Hazardous Substances Data: 21686-05-5(Hazardous Substances Data)

Usage

General Description

1-(1,5-Dimethyl-1H-pyrazol-4-yl)ethanone, also known as 1-acetyl-1,5-dimethyl-1H-pyrazole, is a chemical compound with the molecular formula C8H12N2O. It is a ketone derivative with a pyrazole ring, and it is commonly used in the synthesis of various pharmaceuticals and agrochemicals. 1-(1,5-DIMETHYL-1H-PYRAZOL-4-YL)ETHANONE is known for its potential as a chelating ligand in coordination chemistry and has been used in the development of coordination compounds for various applications. Additionally, it has been studied for its pharmacological properties, including its potential as an anti-inflammatory and anti-cancer agent. Overall, 1-(1,5-Dimethyl-1H-pyrazol-4-yl)ethanone is a versatile chemical compound with a wide range of potential applications in both the chemical and pharmaceutical industries.

InChI:InChI=1/C7H10N2O/c1-5-7(6(2)10)4-8-9(5)3/h4H,1-3H3

Upstream product

• 33884-41-2 ethoxylideneacetylacetone 
• 60-34-4 methylhydrazine 
• 18856-72-9 3-dimethylaminomethylenepentane-2,4-dione 
• 4637-24-5 N,N-dimethyl-formamide dimethyl acetal 
• 123-54-6 acetylacetone 
• 71591-87-2 3-(aminomethylene)pentane-2,4-dione 
• 105224-04-2 1-(3-methyl-1H-pyrazol-4-yl)ethanone 
• 74-88-4 methyl iodide 
• 87150-12-7 ethyl 4-acetyl-3-methyl-1H-pyrazole-1-carboxylate 

Downstream Products

• 1005612-96-3 1-(1,5-dimethyl-1H-pyrazol-4-yl)-4,4,4-trifluorobutane-1,3-dione 
• 1005585-64-7 4,4-difluro-1-(1,5-dimethyl-1H-pyrazol-4-yl)butane-1,3-dione 
• 3920-42-1 1,5-dimethyl-4-nitro-1H-pyrazole 
• 31728-75-3 1,5-dimethylpyrazole-4-carboxylic acid 

Relevant articles and documents

Catalyst-free one-pot synthesis of 1,4,5-trisubstituted pyrazoles in 2,2,2-trifluoroethanol

A simple, efficient and three component one-pot synthesis of 1,4,5-trisubstituted pyrazoles by condensation of β-dicarbonyls, N,N-dimethylformamide dimethyl acetal (DMFDMA) and hydrazine derivatives in 2,2,2-trifluoroethanol without using any catalyst and activation, is described.

Synthesis and Structures of Pyrazoles from Ethoxymethylene Derivatives of 1,3-Dicarbonyl Compounds and Hydrazines

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Reaction of 2-Dimethylaminomethylene-1,3-diones with Dinucleophiles. I. Synthesis of 1,5-Disubstituted 4-Acylpyrazoles

Reaction of open-chain and cyclic sym-1,3-diones with N,N-dimethylformamide dimethyl acetal gave, generally in high yield, a series of sym-2-dimethylaminomethylene-1,3-diones which reacted with phenylhydrazine and methylhydrazine to afford, generally in satisfactory yield, a number of 1,5-disubstituted 4-acylpyrazoles.The applications and limits of this new pyrazole synthesis are presented and discussed.