70910-18-8

Basic information

• Product Name: 4-Cyan-1-methyl-5-pyrazolcarbonsaeure-methylester
• CAS NO: 70910-18-8
• Molecular Weight: 165.151
• Mol File: 70910-18-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4-Cyan-1-methyl-5-pyrazolcarbonsaeure-methylester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Cyan-1-methyl-5-pyrazolcarbonsaeure-methylester(70910-18-8)
• EPA Substance Registry System: 4-Cyan-1-methyl-5-pyrazolcarbonsaeure-methylester(70910-18-8)

Safety Data

• Hazardous Substances Data: 70910-18-8(Hazardous Substances Data)

Upstream product

• 105020-46-0 4-Cyan-1,3-pyrazoldicarbonsaeure-dimethylester 
• 24153-51-3 diazomethane 
• 105020-40-4 trans-4,5-Dicyan-4,5-dihydro-1H-pyrazol-4,5-dicarbonsaeure-dimethylester 
• 35234-87-8 dimethyl 2,3-dicyanofumarate 
• 186581-53-3 diazomethane 
• 105020-45-9 4-Cyano-1H-pyrazole-3-carboxylic acid methyl ester 

Downstream Products

• 66121-71-9 1-methyl-1H-pyrazole-4-carbonitrile 

Relevant articles and documents

THE ASTOUNDING REACTION OF DIAZOMETHANE WITH DIMETHYL 2,3-DICYANOFUMARATE

The title reaction afforded the pyrazole derivatives 3 and 4 as well as the N-methyl-1,2,3-triazolecarboxylic esters 5 - 7.The poly-step sequence was clarified; the key intermediates are the 1-pyrazoline 18, the 2-pyrazoline 2, the 4H-pyrazole 12, the pyrazole 22, and methyl cyanoformate.