The synthesis of new 4,6-disubstituted dihydrodipyridopyrazines starting from corresponding carboxaldehydes via lithiation directed by alpha-amino alkoxides is described. The N,N,N'-trimethylethylenediamine was used as amine component for in situ formation of the alpha-amino alkoxides. After optimization, this reaction allowed easy access to new interesting starting materials for further applications
描述了新的4,6-二取代的二氢二
吡啶并
吡嗪从相应的羧基醛经由α-
氨基醇盐指导的
锂化反应的合成。N,N,N′-三甲基
乙二胺用作胺组分,用于原位形成α-
氨基醇盐。经过优化后,该反应可轻松获得新的有趣起始原料,并通过
钯催化反应进一步应用。