107769-83-5

Basic information

• Product Name: 2,3-dimethyl-9-phenylpyrazolo<5,1-b>quinazoline
• Synonyms: 2,3-dimethyl-9-phenylpyrazolo<5,1-b>quinazoline
• CAS NO: 107769-83-5
• Molecular Weight: 273.337
• Mol File: 107769-83-5.mol

Chemical Properties

• CAS DataBase Reference: 2,3-dimethyl-9-phenylpyrazolo<5,1-b>quinazoline(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-dimethyl-9-phenylpyrazolo<5,1-b>quinazoline(107769-83-5)
• EPA Substance Registry System: 2,3-dimethyl-9-phenylpyrazolo<5,1-b>quinazoline(107769-83-5)

Safety Data

• Hazardous Substances Data: 107769-83-5(Hazardous Substances Data)

Upstream product

• 103-71-9 phenyl isocyanate 
• 107769-77-7 triphenyl<1-methyl-2-((phenyl(methoxycarbonyl)methylene)hydrazono)propylidene>phosphorane 
• 107769-82-4 2,3-dimethyl-9-(methoxycarbonyl)-9-phenyl-4,9-dihydropyrazolo<5,1-b>quinazoline 

Relevant articles and documents

Reactions of Azines. 12. Preparation and Reactions of Triphenylphosphonium Bromide

Preparation of triphenylphosphonium bromide (13), triphenylphosphonium iodide (15), and their corresponding ylides 14 and 16 was accomplished.The reaction of 14 with diphenylketene gave 2-methyl-4,9-diphenyl-9-(methoxycarbonyl)-4,9-dihydropyrazoloisoquinoline (19/20).The reaction of 16 with phenyl isocyanate gave 6,7-dimethyl-3-methoxy-1,3-diphenyl-1H-imidazopyrazol-2(3H)-one (27b), 2,3-dimethyl-9-(methoxycarbonyl)-9-phenyl-4,9-dihydropyrazoloquinazoline (30), and 2,3-dimethyl-9-phenylpyrazoloquinazoline (31).Phenylacetoxyketene, on reacting with triphenylphosphorane (35), gave 2-methyl-4,9-diphenylpyrazoloisoquinoline (40).Carbon disulfide with ylide 16 gave the 2,3-dimethyl-9-(methoxycarbonyl)-9H-pyrazolobenzothiazine (45) and desaurine (42) as well as the trans-5,10-bis(methoxycarbonyl)-5,10-diphenyldipyrazolodiazadithiocine (46).Confirmation of the structures 31, 42, and 46 was obtained by crystallographic analyses.