204444-57-5

Basic information

• Product Name: 5-bromo-1-(4'-fluorophenacyl)-2-methyl-4-nitroimidazole
• Synonyms: 5-bromo-1-(4'-fluorophenacyl)-2-methyl-4-nitroimidazole
• CAS NO: 204444-57-5
• Molecular Weight: 342.124
• Mol File: 204444-57-5.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 5-bromo-1-(4'-fluorophenacyl)-2-methyl-4-nitroimidazole(CAS DataBase Reference)
• NIST Chemistry Reference: 5-bromo-1-(4'-fluorophenacyl)-2-methyl-4-nitroimidazole(204444-57-5)
• EPA Substance Registry System: 5-bromo-1-(4'-fluorophenacyl)-2-methyl-4-nitroimidazole(204444-57-5)

Safety Data

• Hazardous Substances Data: 204444-57-5(Hazardous Substances Data)

Upstream product

• 18874-52-7 5-bromo-2-methyl-4-nitro-1H-imidazole 
• 403-29-2 2-bromo-4'-fluoroacetophenone 
• 204444-53-1 4-bromo-1-(4'-fluorophenacyl)-2-methyl-5-nitroimidazole 
• 18874-52-7 4-bromo-2-methyl-5-nitroimidazole 

Relevant articles and documents

Isomerization of 4-Bromo-2-methyl-5-nitro-1-phenacylimidazoles into 5-Bromo-2-methyl-4-nitro-1-phenacylimidazoles

4-Bromo-2-methyl-5-nitro-1-phenacylimidazoles (1a-e) dissolved in EtOH in presence of sodium bicarbonate (or without it) heated under reflux were isomerized into 5-bromo-2-methyl-4-nitro-1-phenacylimidazoles (5a-e). The structures of 5a-e were assigned using SFORD (Single Frequency Off Resonance Decoupling) and COLOC (Correlation Spectroscopy for Long Range Coupling) NMR techniques. A conceivable mechanism of isomerization is discussed. Wiley-VCH Verlag GmbH, 1999.

Tetrabutyl ammonium bromide as a catalyst for reaction of 5(4)-bromo-2-methyl-4(5)-nitroimidazole with phenacyl bromides

Reactions of 5(4)-bromo-2-methyl-4(5)-nitroimidazole with phenacyl bromide, tetrabutylammonium bromide (TBAB) and sodium bicarbonate in the sonication condition resulted in a mixture of 4-bromo-5-nitroimidazoles [IIIa-e] and 5-bromo-4-nitroimidazoles [IVa-e] at an excellent yield of over 85% and, surprisingly, at the isomers ratio of 2:1.