本文对AlCl_3催化下,以酸酐为酰化剂合成β-Ρ-苯甲酰丙酸、β-苯甲酰丙烯酸、和β-苯甲酰丙酸的Friedel-Crafts酰化反应进行了实验研究。实验结果表明:当催化剂AlCl_3的用量由文献的2.2当量提高到3.5当量时,β-Ρ-苯基苯甲酰丙酸、β-苯甲酰丙烯酸和β-苯甲酰丙酸的合成产率分别由文献的70％、80—85％、和77—82％提高到94％、95％和92％。 Friedel-Crafts acylation of β-p-benzoylpropionic acid, β-benzoyl acrylic acid and β-benzoyl propionic acid with an anhydride as an acylating agent was studied in this paper. The experimental results show that the synthesis yield of β-P-phenylbenzvonic acid, β-benzoyl acrylic acid and β-benzoyl propionic acid is higher when the amount of AlCl 3 catalyst is increased from 2.2 equivalents to 3.5 equivalents in the literature Respectively from 70%, 80-85%, and 77-82% of the literature to 94%, 95% and 92%.