作者:Markus Albrecht、Roland Fröhlich
DOI:10.1055/s-2007-985560
日期:——
transformed into the phenyl-connected diimine 8. Ring-closing metathesis with the Grubbs I or II catalyst led to the corresponding macrocycle 9. Hydrogenation resulted in the reduction of the double bonds as well as the removal of the template to yield the 56-membered macrocycle 6 in an overall yield of 43% (from 1). Direct metathesis reaction of 1 followed by hydrogenation afforded 6 in only 21% yield
在 Suzuki 偶联方法中制备胺取代的五联苯 1 并通过与对苯二醛 (7) 反应转化为苯基连接的二亚胺 8。与 Grubbs I 或 II 催化剂的闭环复分解导致相应的大环 9 . 氢化导致双键的减少以及模板的去除,以 43% 的总产率(从 1)产生 56 元大环 6。1 的直接复分解反应随后氢化得到 6,产率仅为 21%。