204444-54-2Relevant academic research and scientific papers
A convenient approach to the synthesis of the imidazo[5,1-b]oxazole ring system
Salgado-Zamora, Hector,Campos, Elena,Jimenez, Rogelio,Sanchez-Pavon, Esmeralda,Cervantes, Humberto
, p. 1081 - 1090 (2007/10/03)
Reaction of 4(5)-bromo-2-methyl-5(4)-nitroimidazole with phenacyl bromide derivatives led to 4-bromo-2-methyl-1-phenacyl-5-nitro- and 5-bromo- 2-methyl-1-phenacyl-4-nitroimidazoles. Treatment of the latter isomers with potassium tert-butoxide in dry THF y
Tetrabutyl ammonium bromide as a catalyst for reaction of 5(4)-bromo-2-methyl-4(5)-nitroimidazole with phenacyl bromides
Sobiak, Stanislaw
, p. 155 - 158 (2007/10/03)
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.
Synthesis of some 5-amino-2-methyl-4-nitro-1-phenacylimidazoles
Sobiak
, p. 78 - 83 (2007/10/03)
Reaction of 4(5)-bromo-2-methyl-5(4)-nitroimidazole with phenacyl bromide derivatives gave two isomers: 4-bromo-5-nitroimidazoles (4a-e) and 5-bromo-4-nitroimidazoles (5a-e). Compounds 5a-e were treated with cyclic secondary amines to afford expected 5-amino-4-nitroimidazole derivatives 6a-c - 10a-b.
