介绍了氧化苯乙烯液相重排合成苯乙醛的方法,考察了催化剂及其用量、溶剂和反应时间等因素对苯乙醛产率的影响.试验结果表明,在SAS-2固体酸催化剂存在下,催化剂投料为氧化苯乙烯重量的15%,反应物与溶剂环已烷的体积比为1:8,苯乙醛产率可达98.2%. In this paper, the liquid-phase rearrangement of styrene oxide to phenylacetaldehyde was introduced, and the effects of the amount of catalyst, solvent, reaction time and other factors on the yield of phenylacetaldehyde were investigated. The experimental results show that in the presence of SAS-2 solid acid catalyst , The catalyst was fed 15% by weight of styrene oxide, the volume ratio of the reactant to the solvent cyclohexane was 1: 8, and the yield of phenylacetaldehyde was 98.2%.