concepts to synthesize meta‐functionalized pyridines. First, diols and amines were linked to β‐amino alcohols, which can then undergo a selective dehydrogenative heterocondensation with γ‐amino alcohols. Iridium catalysts stabilized by PN5P pincer ligands that were developed in our laboratory mediate the reactions most efficiently. All of the 3‐aminopyridines that we describe in this paper have been synthesized
将醇转化为重要化合物类别的新反应变得越来越重要,因为它们的发展有助于保护我们的化石碳原料并减少CO 2排放。催化醇转化的两个关键概念是借用氢或氢的自动转移和无受体的脱氢缩合反应。在这里,我们结合了两个概念来合成间功能化的
吡啶。首先,将二醇和胺与β-
氨基醇连接,然后可以与γ-
氨基醇进行选择性脱氢杂缩反应。
PN 5稳定的
铱催化剂我们实验室开发的P钳
配体最有效地介导了反应。所有3
氨基吡啶,我们在本文中描述的被合成的第一次,强调这种方法的创新程度和与该合成相关的问题元-功能化
吡啶。