265097-83-4

Basic information

• Product Name: 3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-1-phenylpyrazole
• Synonyms: 3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-1-phenylpyrazole
• CAS NO: 265097-83-4
• Molecular Weight: 268.272
• Mol File: 265097-83-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-1-phenylpyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-1-phenylpyrazole(265097-83-4)
• EPA Substance Registry System: 3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-1-phenylpyrazole(265097-83-4)

Safety Data

• Hazardous Substances Data: 265097-83-4(Hazardous Substances Data)

Upstream product

• 265097-73-2 1-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-3-dimethylamino-2-propene-1-one 
• 771-03-9 3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one 
• 520-45-6 Dehydracetic acid 
• 100-63-0 phenylhydrazine 
• 29214-73-1 6-methyl-3-[1-(phenyl-hydrazono)-ethyl]-pyran-2,4-dione 
• 68-12-2 N,N-dimethyl-formamide 
• 265097-79-8 1-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-3-ethylamino-2-propene-1-one 

Relevant articles and documents

Synthesis of some new 1-aryl-4-formyl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran- 3-yl)pyrazoles using the Vilsmeier-Haack reaction - Isolation of the key intermediate 1-aryl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl) pyrazoles

Arylhydrazones of dehydroacetic acid (DHA) underwent Vilsmeier-Haack reaction to generate the corresponding 1-aryl-4-formyl-3-(4-hydroxy-6-methyl-2- oxo-2H-pyran-3-yl)pyrazoles (1) with the pyrone moiety of the DHA remaining intact. However, when the reac