作者:Arne Lützen、Marko Hapke、Holger Staats、Ivonne Wallmann
DOI:10.1055/s-2007-983824
日期:2007.9
Amino-functionalized 2,2′-bipyridines are versatile building blocks for the synthesis of sophisticated chelating ligands with the 2,2′-bipyridine core. The 4-, 5-, and 6-substituted 2-chloro- and 2-bromopyridine building blocks were prepared and coupled to symmetrically and non-symmetrically diamino-functionalized compounds by homo- and cross-coupling procedures. Further transformations were carried out to demonstrate the synthetic versatility of these compounds and the employed procedures.
氨基功能化的2,2′-联吡啶是一种多功能的构建块,用于合成具有2,2′-联吡啶核心的复杂螯合配体。合成了4、5和6位取代的2-氯吡啶和2-溴吡啶构建块,并通过齐聚和交叉耦合方法与对称和非对称的二氨基功能化化合物进行了耦合。进一步的转化实验表明了这些化合物及所采用方法的合成多样性。