Alpha-arylalkanoic esters are prepared by reacting a trivalent iodine compound of the formula
wherein Ar is an aromatic hydrocarbon group and X and Y each represent a group which can be removed as an anion, with a carbonyl compound of the formula
where Ar¹ is an aromatic hydrocarbon group, R is a hydrogen atom or an alkyl group, and R¹ is a hydrogen atom or an alkyl group, in the presence of an orthocarboxylic ester having the general formula ZC(OR²)₃, wherein R² is an alkyl group and Z is a hydrogen atom or an alkyl group; the reaction being carried out in the presence of sulfuric acid in an amount from about 0.2 to about 0.8 mole per mole of the carbonyl compound.
α-芳基烷酸酯的制备方法是:在通式为 ZC(OR²)₃(其中 R² 为烷基,Z 为氢原子或烷基)的原
羧酸酯存在下,使通式为 Ar 为
芳香烃基、X 和 Y 各代表一个可作为阴离子除去的基团的三价
碘化合物与通式为 Ar¹ 为
芳香烃基、R 为氢原子或烷基、R¹ 为氢原子或烷基的羰基化合物反应;反应在
硫酸存在下进行,每摩尔羰基化合物的用量约为 0.2 至 0.8 摩尔。