The reaction of active methylene reagents Ia-Ie with phenyl isothiocyanate in basic N,N-dimethylformamide solution followed by cyclization with ethyl cyanobromoacetate II affords the acyclic thioether derivatives IVa-IVe. The use of IVa-IVe in heterocyclic synthesis was described.
在碱性的N,N-二甲基甲酰胺溶液中,活性甲基丙烯酸酯试剂Ia-Ie与苯基异硫氰酸酯反应,然后再与氰代溴乙酸乙酯II环化,得到了无环硫醚衍生物IVa-IVe。该研究还描述了IVa-IVe在杂环合成中的应用。