1202819-59-7

Basic information

• Product Name: 3-methyl-1-(2-hydroxy-1-naphthyl)-1H-pyrazole
• Synonyms: 3-methyl-1-(2-hydroxy-1-naphthyl)-1H-pyrazole
• CAS NO: 1202819-59-7
• Molecular Weight: 224.262
• Mol File: 1202819-59-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-methyl-1-(2-hydroxy-1-naphthyl)-1H-pyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 3-methyl-1-(2-hydroxy-1-naphthyl)-1H-pyrazole(1202819-59-7)
• EPA Substance Registry System: 3-methyl-1-(2-hydroxy-1-naphthyl)-1H-pyrazole(1202819-59-7)

Safety Data

• Hazardous Substances Data: 1202819-59-7(Hazardous Substances Data)

Upstream product

• 135-19-3 β-naphthol 

Relevant articles and documents

Thermal transformation of cyclopropylazoarenes into the five-membered nitrogen-containing heterocycles

Cyclopropylazoarenes containing methoxy groups in the aromatic ring give the corresponding N-arylpyrazolines on the reflux in o-dichlorobenzene or on SnCl2 catalysis at 80 °C in good yields. The products can be smoothly oxidized into the corresponding pyrazoles. Thermolysis of cyclopropylazoarenes containing hydroxy groups in the aromatic ring proceeds more complicated. Thus in the case of resorcin azo derivative, strong resinification of the reaction mixture is observed and the corresponding N-arylpyrazoline is isolated only in -40% yield. Under similar conditions, thermolysis of 1-cyclopropyl- and 1-(1-methylcyclopropyl)azo-2-naphthol proceeds otherwise and unexpectedly leads to naphtho[1,2-d]oxazole derivatives with degradation of the cyclopropane ring.