tricarbonyl moiety into aromatic, heterocyclic, and aliphatic amines with the use of acylpyrones has been developed for the synthesis and the design of novel polycarbonyl Schiff base ligands, including salphen structures. This Michael addition–ring-opening reaction proceeds under mild conditions (stirring at 0–20 °C) via the attack at the C-6 position of the pyrone ring in good to high yields (up to 99%) with
开发了一种使用酰基
吡喃酮将三羰基部分引入芳香胺、杂环胺和脂肪胺中的方法,用于合成和设计新型聚羰基席夫碱
配体(包括salphen结构)。这种迈克尔加成-开环反应在温和条件下(在 0-20 °C 搅拌)下通过攻击
吡喃酮环的 C-6 位进行,产率从良好到高(高达 99%),并且具有优异的选择性。无需使用色谱法即可通过结晶轻松分离产物。研究了反应范围、开链产物的互变异构平衡以及它们环化为
吡啶酮结构。