773136-70-2

Basic information

• Product Name: 1H-Pyrazole-5-carboxylicacid,1,3,4-trimethyl-,methylester(9CI)
• Synonyms: 1H-Pyrazole-5-carboxylicacid,1,3,4-trimethyl-,methylester(9CI);1,3,4-TriMethyl-1H-pyrazole-5-carboxylic acid Methyl ester
• CAS NO: 773136-70-2
• Molecular Formula: C8H12N2O2
• Molecular Weight: 168.19
• Product Categories: GLYCINESCAFFOLD
• Mol File: 773136-70-2.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 256℃
• Flash Point: 109℃
• Appearance: /
• Density: 1.13
• Storage Temp.: 2-8°C
• PKA: 1.50±0.10(Predicted)
• CAS DataBase Reference: 1H-Pyrazole-5-carboxylicacid,1,3,4-trimethyl-,methylester(9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Pyrazole-5-carboxylicacid,1,3,4-trimethyl-,methylester(9CI)(773136-70-2)
• EPA Substance Registry System: 1H-Pyrazole-5-carboxylicacid,1,3,4-trimethyl-,methylester(9CI)(773136-70-2)

Safety Data

• Hazardous Substances Data: 773136-70-2(Hazardous Substances Data)

Usage

Chemical Properties

Colorless to pale yellow viscous liquid

Uses

Methyl 1,3,4-trimethyl-1H-pyrazole-5-carboxylate is use in the preparation of 3-(1,3,4-trimethylpyrazol-5-yl)acrylonitrile derivatives.

Upstream product

• 60858-33-5 4,5-dimethyl-1⁽²⁾H-pyrazole-3-carboxylic acid methyl ester 
• 74-88-4 methyl iodide 
• 10250-59-6 1,3-dimethyl-1H-pyrazole-5-carboxylic acid methyl ester 
• 25016-17-5 3-methyl-1H-pyrazole-5-carboxylic acid methyl ester 
• 20577-61-1 methyl 2,4-dioxopentanoate 
• 553-90-2 Dimethyl oxalate 
• 60-34-4 methylhydrazine 
• 78-93-3 butanone 

Relevant articles and documents

Preparation method of 3, 4-dimethylpyrazole-5-formate compound

The invention provides a preparation method of a 3, 4-dimethylpyrazole-5-formate compound. According to the method, 2-butanone and oxalic acid diester serve as raw materials, a 3-methyl acetylacetonate compound is prepared in a high-yield and high-regioselectivity mode under the catalysis of an organic annular secondary amine catalyst, the 3-methyl acetylacetonate compound reacts with hydrazine, and the 3, 4-dimethylpyrazole-5-formate compound is prepared in a high-yield mode. According to the preparation method, organic nitrogen-containing cyclic secondary amine compounds such as pyrroline, piperidine and morpholine are used as catalysts, and alcohols such as methanol and ethanol are used as solvents for reaction. The method has the characteristics of relatively mild reaction conditions, simplicity and convenience in operation, high regioselectivity, high yield and the like, and the synthesized 3, 4-dimethylpyrazole-5-formate compound can be used for preparing cyenopyrafen acaricides.