Synthesis of Concave 1,10-Phenanthrolines by a Combination of Suzuki Coupling, Ring Closing Metathesis and Hydrogenation
作者:Ulrich Lüning、Frank Fahrenkrug
DOI:10.1002/ejoc.200400068
日期:2004.7
resulting diaryl-1,10-phenanthrolines 3, substituted with alkenyloxy groups of different lengths, underwent ring closing metathesis reactions giving (bi)macrocyclic 1,10-phenanthrolines 4 in yields between 73 and 96%. The alkene chains of 4 were saturated using hydrogen and Pd/C giving the concave 1,10-phenanthrolines 2 in yields between 75 and 99%. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany
从二氯 1,10-菲咯啉 14 开始,以良好的收率合成了多种饱和和不饱和凹 1,10-菲咯啉 2 和 4。在三步合成中,双邻位取代硼酸的 Suzuki 偶联是用于将两个不同或两个相同的芳基桥头引入 1,10-菲咯啉的 2 位和 9 位(产率 ⩾70%)。得到的二芳基-1,10-菲咯啉 3 被不同长度的烯氧基取代,经过闭环复分解反应得到(双)大环 1,10-菲咯啉 4,产率在 73% 到 96% 之间。4 的烯烃链使用氢和 Pd/C 饱和,得到凹形 1,10-菲咯啉 2,产率在 75% 到 99% 之间。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)