149247-06-3

Basic information

• Product Name: 2-(4-Nitro-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one
• Synonyms: 2-(4-Nitro-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one
• CAS NO: 149247-06-3
• Molecular Weight: 256.221
• Mol File: 149247-06-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2-(4-Nitro-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(4-Nitro-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one(149247-06-3)
• EPA Substance Registry System: 2-(4-Nitro-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one(149247-06-3)

Safety Data

• Hazardous Substances Data: 149247-06-3(Hazardous Substances Data)

Upstream product

• 78583-83-2 5-amino-3-(4-nitrophenyl)-1H-pyrazole 

Downstream Products

• 149246-79-7 4-Ethyl-2-(4-nitro-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one 

Relevant articles and documents

Synthesis of Pyrazolo[1,5-a]pyrimidines in the Reaction of 5-Amino- 3-arylpyrazoles with Methoxymethylene Meldrum's Acid Derivatives and Thermolysis of Their Pyrazolylaminomethylene Derivatives

A series of pyrazolo[1,5-a]pyrimidin-3-ones 3 was prepared from Meldrum's acid and 5-amino-3-arylpyrazoles 1 by cyclization in nitrobenzene of the corresponding 5-pyrazolylaminomethylene Meldrum's acid derivatives 2. The structure of pyrazolo[1,5-a]pyrimidin-3-ones and their precursors were determined by nmr measurements.