申请人:HOECHST CELANESE CORPORATION
公开号:EP0452094A2
公开(公告)日:1991-10-16
The present invention pertains to a method of preparing substituted and unsubstituted N-hydroxy-2-aminobutane diacid derivatives which can be dehydrated to 2-aminobut-2-ene dioic acid derivatives, which can be subsequently converted to pyridine and quinoline derivatives.
本发明涉及一种制备取代和未取代的 N-羟基-2-氨基丁烷二酸衍生物的方法,这些衍生物可脱水为 2-氨基丁-2-烯二酸衍生物,随后可转化为吡啶和喹啉衍生物。