134255-66-6

Basic information

• Product Name: 5,7-Bis-(4-bromo-phenyl)-7-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine
• CAS NO: 134255-66-6
• Molecular Weight: 446.144
• Mol File: 134255-66-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5,7-Bis-(4-bromo-phenyl)-7-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine(CAS DataBase Reference)
• NIST Chemistry Reference: 5,7-Bis-(4-bromo-phenyl)-7-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine(134255-66-6)
• EPA Substance Registry System: 5,7-Bis-(4-bromo-phenyl)-7-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine(134255-66-6)

Safety Data

• Hazardous Substances Data: 134255-66-6(Hazardous Substances Data)

Upstream product

• 61-82-5 3⁽⁵⁾-amino-1,2,4-triazole 
• 99-90-1 para-bromoacetophenone 

Relevant articles and documents

Synthesis of dihydro-1,2,4-triazolo[1,5-a]pyrimidines

Several 5,7-diaryl-4,5-dihydro-5-methyl-1,2,4-triazolo[1,5-a]pyrimidines 3a-f and 5,7-diaryl-4,7-dihydro-7-methyl-1,2,4-triazolo[1,5-a]pyrimidines 4a-f were synthesized in high yield from 5-amino-1H-1,2,4-triazole (amitrole) (1) and acetophenones 2 by heating in the presence of zinc chloride and subsequent separation of the isomers.