申请人:Hoechst Aktiengesellschaft
公开号:US03972888A1
公开(公告)日:1976-08-03
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,该方法还可通过将相应的2-吡喁酮与羟胺或其盐在咪唑或可能是单甲基或双甲基取代的2-氨基吡啶存在下反应而在3-、4-和5-位置中一个或多个位置上取代。