二茂铁(乙基二茂铁)与草酰氯反应机理探讨

Reaction Mechanism of Ferrocene(EthylFerrocene) with Oxalyl Chloride

以草酰氯为酰化剂,无水三氯化铝为催化剂,二氯乙烷为溶剂,对二茂铁和乙基二茂铁分别进行了酰化反应,得到了一系列的二茂铁衍生物,再将产物用柱层析进行分离和提纯,通过1H NMR、FT-IR、质谱和元素分析对分离后的各组分进行结构表征;证实了该反应经历了碳正离子亲电取代-自由基反应历程。

A series of ferrocene derivatives were synthesized by using acylchoride as aeylating agents,anhydrous aluminium chloride as catalyst and 1,2-dichloroethane as solvent; separation and purification by column chromatograph is at second; The structure of ferrocene derivatives were separately characterized by 1HNMR, FT-IR ,MS and elemental analysis techniques; So it is proved that the reaction proceeds via carbon cation electrophilic substitution reaction-free radical substitution reaction pathway.