作者:Damian Plażuk、Agnieszka Rybarczyk-Pirek、Janusz Zakrzewski
DOI:10.1016/j.jorganchem.2003.12.044
日期:2004.4
Ferrocene reacts with β-ketophosphonates and β-ketosulfones (or acetals of formylphosphonates and sulfones) in the presence of a strong acid (triflic or methanesulfonic) to afford β-ferrocenyl-α,β-unsaturated phosphonates and β-ferrocenyl-α,β-unsaturated sulfones in good yield. The (E)-stereochemistry of these compounds was confirmed by spectral and analytical data, as well as by X-ray diffraction
二茂铁在强酸(三氟甲磺酸或甲磺酸)的存在下与β-酮膦酸酯和β-酮砜(或甲酰基膦酸酯和砜的缩醛)反应生成β-二茂铁基-α,β-不饱和膦酸酯和β-二茂铁基-α,β -不饱和砜,收率高。这些化合物的(E)-立体化学通过光谱和分析数据以及X射线衍射证实。