Abstract Synthesis of 4-amino-2-aryl(or alkyl)amino-5-cinnamoylthiazoles by a [(C ─ N ─ C ─ S) + C] ring construction route is reported. Unlike the analogous 2′-aminochalcones, neither do these thiazoles cyclize to bicyclic pyridones, nor could these be prepared from the corresponding 5-acetylthiazoles and benzaldehyde.
摘要 报道了通过[(C─N─C─S)+C]环构筑路线合成4-
氨基-2-芳基(或烷基)
氨基-5-肉桂基
噻唑类化合物。与类似的 2'-
氨基
查耳酮不同,这些
噻唑既不能环化为双环
吡啶酮,也不能由相应的 5-乙酰
噻唑和
苯甲醛制备。