30020-86-1

Basic information

• Product Name: Pyrano[2,3-c]pyrazol-6(1H)-one,4-methyl-1,3-diphenyl-
• Synonyms: Pyrano[2,3-c]pyrazol-6(1H)-one,4-methyl-1,3-diphenyl-;4-methyl-1,3-diphenylpyrano[2,3-c]pyrazol-6-one
• CAS NO: 30020-86-1
• Molecular Formula: C₁₉H₁₄N₂O₂
• Molecular Weight: 302.32666
• Mol File: 30020-86-1.mol

Chemical Properties

• Melting Point: 195-197 °C
• Boiling Point: 530.0±50.0 °C(Predicted)
• Appearance: /
• Density: 1.24±0.1 g/cm3(Predicted)
• PKA: -2.02±0.20(Predicted)
• CAS DataBase Reference: Pyrano[2,3-c]pyrazol-6(1H)-one,4-methyl-1,3-diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrano[2,3-c]pyrazol-6(1H)-one,4-methyl-1,3-diphenyl-(30020-86-1)
• EPA Substance Registry System: Pyrano[2,3-c]pyrazol-6(1H)-one,4-methyl-1,3-diphenyl-(30020-86-1)

Safety Data

• Hazardous Substances Data: 30020-86-1(Hazardous Substances Data)

Upstream product

• 141-97-9 ethyl acetoacetate 
• 4845-49-2 1,3-diphenyl-5-oxo-4,5-dihydro-1H-pyrazole 
• 6632-05-9 2,5-diphenyl-1,2-dihydro-pyrazol-3-one 
• 96138-45-3 3-[5-Oxo-1,3-diphenyl-1,5-dihydro-pyrazol-(4Z)-ylidene]-butyric acid ethyl ester 
• 626-34-6 ethyl aminocrotonate 

Downstream Products

• 85111-03-1 4-Methyl-5-nitro-1,3-bis-(4-nitro-phenyl)-1H-pyrano[2,3-c]pyrazol-6-one 
• 74169-64-5 5-bromo-1,3-diphenyl-4-methyl-1H,6H-pyrano<2,3-c>pyrazol-6-one 

Relevant articles and documents

Facile synthesis of pyrano[2,3-c]pyrazol-6-one derivatives under microwave irradiation in solvent-free conditions

A series of substituted 1H,6H-pyrano[2,3-c]pyrazol-6-one derivatives were synthesized from one-pot cyclocondensation of hydrazine derivatives or 1H-pyrazol-5-one derivatives with various β-keto esters under solvent-free conditions using microwave irradiation in short time with good to excellent yields. Copyright Taylor & Francis LLC.

ETUDE DE LA REACTIVITE DU 3-AMINO-2-BUTENOATE D'ETHYLE VIS-A-VIS D'AZOLINE-5-ONES.

Various 1,3-disubstituted pyrazolin-5-ones, 3-phenylisoxazolin-5-one and 2-phenyloxazolin-5-one react with ethyl 3-amino-2-butenoate to yield compounds resulting from the elimination of ammonia between the precursors; subsequent intramolecular cyclization

Pyranopyrazoles. II (1). Synthesis and Reactions of 1H,6H-Pyranopyrazol-6-ones

Various 1H,6H-pyranopyrazol-6-ones (III-XXIII) were obtained from β-keto esters and 1H-pyrazol-5-ones or hydrazines.Nitrations, chlorinations and brominations of these pyranopyrazoles were also carried out giving the corresponding derivatives (XXIV-LXIV).The pyrone ring is the more reactive one by the addition-elimination route.