中文摘要：

以溴代丁酸乙酯为原料,经过苯硫酚发生亲核取代,氢化铝锂还原,PCC氧化,以总收率87%获得最终产物,其结构经过1H NMR和MS表征。

英文摘要：

Sulfydryl substituted ahphatic aldehyde was synthesized from 4-bromobutyric acid ethyl ester by three-steps reaction of substitution, reduction and PCC oxidation. The total yield was 87%, the structure was characterized by 1H NMR and ESI-MS.