作者:Shu Kobayashi、Shunpei Ishikawa、Tomoaki Hamada、Kei Manabe
DOI:10.1055/s-2005-869983
日期:——
An efficient preparation of chiral 2,2'-bipyridines was developed. Compound 1 was synthesized in 54% yield for three steps starting from 2,6-dibromopyridine. In this synthesis, only catalytic amounts of metals were used in the asymmetric reduction and homo-coupling reaction steps. The total yield and simplicity of experimental procedures were much improved compared with those of the previous report
开发了一种手性 2,2'-联吡啶的有效制备方法。从 2,6-二溴吡啶开始,三步合成化合物 1,产率为 54%。在该合成中,在不对称还原和均偶联反应步骤中仅使用催化量的金属。与之前的报告相比,实验程序的总产量和简单性有了很大提高。其他手性 2,2'-联吡啶同样高效合成。