Preparation of Substituted Pyridines via a Coupling of β-Enamine Carbonyls with Rongalite-Application for Synthesis of Terpyridines

Reactions Pub Date : 2022-08-16 DOI:10.3390/reactions3030029
Yung-Yuan Lee, Shiuh‐Tzung Liu
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引用次数: 3

Abstract

A Hantzsch-type strategy for the synthesis of 2,3,5,6-tetrasubstituted pyridines via an oxidative coupling of β-enamine carbonyl compounds with rongalite was developed. This method employs rongalite as a C1 unit for the assembly of a pyridine ring at C-4 position, offering a facile method for the preparation of substituted pyridine derivatives with a broad functional group tolerance. In particular, this method allows us to prepare terpyridine derivatives, which are important ligands or structural fragments for catalysts and 3D metal–organic frameworks.
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β-烯胺羰基与熔铝酸盐偶联制备取代吡啶的研究——在三联吡啶合成中的应用
研究了β-烯胺羰基化合物与熔铝石氧化偶联合成2,3,5,6-四取代吡啶的hantzsch型策略。该方法采用熔铝石作为C1单元,在C-4位置组装吡啶环,为制备具有广泛官能团耐受性的取代吡啶衍生物提供了一种简便的方法。特别是,这种方法使我们能够制备三吡啶衍生物,这是催化剂和三维金属有机框架的重要配体或结构片段。
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