77493-73-3

Basic information

• Product Name: Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 2-phenyl-
• CAS NO: 77493-73-3
• Molecular Formula: C12H9N3O
• Molecular Weight: 211.223
• Mol File: 77493-73-3.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 2-phenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 2-phenyl-(77493-73-3)
• EPA Substance Registry System: Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 2-phenyl-(77493-73-3)

Safety Data

• Hazardous Substances Data: 77493-73-3(Hazardous Substances Data)

Upstream product

• 79039-20-6 4,7-dihydro-2-phenyl-7-oxopyrazolo<1,5-a>pyrimidin-6-carboxylic acid 
• 827-41-8 3-phenylpyrazol-5-amine 
• 79039-19-3 ethyl 4,7-dihydro-2-phenyl-7-oxopyrazolo<1,5-a>pyrimidin-6-carboxylate 
• 79039-18-2 diethyl 2-<<(3-phenyl-5-pyrazolyl)amino>methylen>propandioate 
• 614-16-4 Benzoylacetonitrile 
• 442850-72-8 1-(tert-butyl)-3-phenyl-1H-pyrazol-5-amine 

Downstream Products

• 77494-11-2 2-Phenyl-4-propyl-4H-pyrazolo[1,5-a]pyrimidin-7-one 
• 86969-19-9 4-(2,2-Diethoxy-ethyl)-2-phenyl-4H-pyrazolo[1,5-a]pyrimidin-7-one 
• 86969-28-0 bis(4-ethyl-4,7-dihydro-7-oxo-2-phenylpyrazolo[1,5-a]pyrimidin-3-yl)disulfide 
• 86969-27-9 4,7-dihydro-2-phenyl-3-thiocyanatopyrazolo[1,5-a]pyrimidin-7-one 
• 86993-45-5 3,6-dibromo-4-ethyl-4,7-dihydro-2-phenylpyrazolo[1,5-a]pyrimidin-7-one 
• 86969-30-4 4-Ethyl-3-nitroso-2-phenyl-4H-pyrazolo[1,5-a]pyrimidin-7-one 
• 86969-26-8 3-bromo-4-ethyl-4,7-dihydro-2-phenylpyrazolo[1,5-a]pyrimidin-7-one 
• 77494-16-7 2-Phenyl-4-propyl-4H-pyrazolo[1,5-a]pyrimidine-7-thione 
• 77494-15-6 4-Methyl-2-phenyl-4H-pyrazolo[1,5-a]pyrimidine-7-thione 
• 77493-99-3 2-Phenyl-4H-pyrazolo[1,5-a]pyrimidine-7-thione 
• 77494-10-1 4,7-dihydro-2-phenyl-4-methylpyrazolo<1,5-a>pyrimidin-7-one 
• 86969-21-3 ethyl 3-(4,7-dihydro-7-oxo-2-phenylpyrazolo<1,5-a>pyrimidin-4-yl)propenoate 
• 86969-20-2 4-(2-Hydroxy-ethyl)-2-phenyl-4H-pyrazolo[1,5-a]pyrimidin-7-one 
• 86969-29-1 4,7-dihydro-3-nitroso-2-phenylpyrazolo<1,5-a>pyrimidin-7-one 

Relevant articles and documents

Gas-phase synthesis of pyrazolo[3,4- b ]pyridin-4-ones

Flash vacuum pyrolysis (FVP) at 500-600 °C of 1-substituted pyrazolylaminomethylene derivatives of Meldrum's acid provides 1-substituted pyrazolo[3,4-b]pyridin-4-ones in high yields. If the 1-substituent is a tert-butyl group, FVP at 750-850 °C causes elimination of 2-methyl-1-propene to give the parent pyrazolo[3,4-b]pyridin-4-one.

New pharmacologically active 2-phenylpyrazolo[1,5-a]pyrimidines

-