Method for making 6-substituted-1-hydroxy-2-pyridones, which may also be substituted in one or more of the 3-, 4-, and 5-positions, by reaction of the corresponding 2-pyrone with hydroxylamine or its salts in the presence of imidazole or a 2-aminopyridine which may be mono- or di-methyl substituted.
                            制备6-取代-1-
羟基-2-吡啶酮的方法,可以在3、4和5位中的一个或多个位置上进行取代,通过将相应的2-
吡啶酮与
羟胺或其盐在
咪唑或2-
氨基吡啶的存在下反应,该2-
氨基吡啶可以是单甲基或双甲基取代的。