The reduction of a variety of functional groups with the nickel(II) chloride-zinc system was investigated. This system reduced aldehydes, ketones, olefins, nitriles, oxime, nitro and heterocyclic compounds under mild conditions in good yields. It is of interest that some cases of reduction of ketones afforded the corresponding olefins and the saturated products, and the reduction of nitriles afforded the corresponding primary alcohols with the primary and secondary amines. The selective reduction of olefin and nitro functionalities in some compounds bearing carbonyl, ester and carboxyl functionalities was observed with this system.
                                    使用
氯化镍(II)-
锌体系对多种官能团进行了还原研究。该体系在温和条件下可高效还原醛、酮、烯烃、腈、
肟、硝基和
杂环化合物。值得注意的是,某些酮的还原产物为相应的烯烃和饱和产物,而腈的还原产物为相应的一级醇以及一级和二级胺。通过这一体系,在含有羰基、酯和羧基官能团的化合物中,实现了对烯烃和硝基官能团的选择性还原。