Research on heterocyclic compounds. XXI. Synthesis of imidazo[2,1-<i>b</i>]benzothiazole and imidazo[2,1-<i>b</i>]thiazole derivatives
作者:Enrico Abignente、Paolo De Caprariis、Giovanni De Martino、Rosaria Patscot
DOI:10.1002/jhet.5570240129
日期:1987.1
corresponding imidazo[2,1-b]benzothiazole and imidazo[2,1-b]-thiazole derivatives, respectively. In some cases, two unexpected side products were obtained together with the required compound and their structures were elucidated: e.g., 2-aminobenzothiazole reacted with ethyl 3-bromo-4-oxopentanoate to give ethyl 2-methylimidazo[2,1-b]benzothiazole-3-acetate together with ethyl imi-dazo[2,1-b]benzothiazole-2-propionate