作者:P. Bouchet、R. Lazaro、M. Benchidmi、J. Elguero
DOI:10.1016/0040-4020(80)88048-3
日期:1980.1
The preparation of different aminoindazoles by nucleophilic aromatic photosubstitution of nitroindazoles by amines is described. In this manner, the amino, methylamino, dimethylamino and dimethylamino substituents are introduced in 3,4,5 or 7-position. The irradiation in the presence of ethanol gives ethoxyindazoles in only four cases. Two demethylation reactions have been observed: the first one concerns
描述了通过胺的硝基吲哚的亲核芳香光解制备不同的氨基吲唑。以这种方式,在3、4、5或7位引入氨基,甲基氨基,二甲基氨基和二甲基氨基取代基。在乙醇存在下的辐射仅在四种情况下产生乙氧基吲唑。已经观察到两个脱甲基反应:第一个涉及从二甲胺开始的甲基氨基衍生物的形成;第二个涉及从二甲胺开始的甲氨基衍生物的形成。第二种是在二乙胺存在下通过辐照形成N(H)1-吲唑。