29214-73-1

Basic information

• Product Name: 6-methyl-3-[1-(phenyl-hydrazono)-ethyl]-pyran-2,4-dione
• Synonyms: 6-methyl-3-[1-(phenyl-hydrazono)-ethyl]-pyran-2,4-dione
• CAS NO: 29214-73-1
• Molecular Weight: 258.277
• Mol File: 29214-73-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 6-methyl-3-[1-(phenyl-hydrazono)-ethyl]-pyran-2,4-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 6-methyl-3-[1-(phenyl-hydrazono)-ethyl]-pyran-2,4-dione(29214-73-1)
• EPA Substance Registry System: 6-methyl-3-[1-(phenyl-hydrazono)-ethyl]-pyran-2,4-dione(29214-73-1)

Safety Data

• Hazardous Substances Data: 29214-73-1(Hazardous Substances Data)

Upstream product

• 100-63-0 phenylhydrazine 
• 520-45-6 Dehydracetic acid 
• 16807-48-0 3‐acetyl‐2‐hydroxy‐6‐methyl‐4H‐pyran‐4‐one 

Downstream Products

• 100-63-0 phenylhydrazine 
• 137934-94-2 3-hydroxy-5-methyl-4-<3'-methyl-1'-phenylpyrazol-5'-yl>-1-phenylpyrazole 
• 265097-83-4 3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-1-phenylpyrazole 

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