98700-47-1

Basic information

• Product Name: 1-(4-Methylphenyl)-1H-pyrazole-3-carbaldehyde
• CAS NO: 98700-47-1
• Molecular Weight: 186.213
• Mol File: 98700-47-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-(4-Methylphenyl)-1H-pyrazole-3-carbaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(4-Methylphenyl)-1H-pyrazole-3-carbaldehyde(98700-47-1)
• EPA Substance Registry System: 1-(4-Methylphenyl)-1H-pyrazole-3-carbaldehyde(98700-47-1)

Safety Data

• Hazardous Substances Data: 98700-47-1(Hazardous Substances Data)

Upstream product

• 3483-19-0 3-(4-methylphenyl)sydnone 
• 98700-38-0 4-[3-(4-Fluoro-phenyl)-5-methylene-4,5-dihydro-3H-[1,2,3]triazol-4-yl]-morpholine 
• 98700-45-9 3-(4-Fluorophenylimino)methyl-4,5-dihydro-1-(4-methylphenyl)-5-morpholino-1H-pyrazole 
• 98700-46-0 3-(4-Fluorophenylimino)methyl-1-(4-methylphenyl)-1H-pyrazole 
• 74073-15-7 4,5-Dihydro-4-methylene-5-morpholino-1-(4-nitrophenyl)-ν-triazole 

Relevant articles and documents

ν-Triazolines, XXIV-Pyrazolecarbaldehydes from 5-Amino-4,5-dihydro-4-methylene-ν-triazoles and Sydnones

The sydnones 1a-c react with the 4,5-dihydro-ν-triazoles 2a-c by long refluxing at 110-140 deg C affording via non-isolable adducts with elimination of CO2 and N2 and rearrangement a mixture of 4,5-dihydropyrazoles 3a-c, 3-pyrazolecarbaldehyde anils 4a-d, and 3-pyrazolecarbaldehydes 5a-c.Compounds 3 can be deaminated to give 4 which can be hydrolyzed to yield the 3-pyrazolecarbaldehydes 5. - The sydnones 6a,b react similarey with 2a to give a mixture of 4-pyrazolecarbaldehyde anils 7a,b and 4-pyrazolecarbaldehydes 8a,b.The structural assignments are based on spectroscopic and X-ray diffraction data.