The synthetics of cinnemic acid by Perkin reaction of benzaldehyde and acetic anhydride is improved by using hydroquiuone as an polgmerization inhibitor.

• 采用对苯二酚为阻聚剂 ,对苯甲醛与乙酐以 Perkin反应合成肉桂酸的工艺进行了改进。