Acylaromatic compounds ##STR1## (Q: aromatic compound residue; R: straight, branched or cyclic aliphatic group, aromatic group or araliphatic group) are prepared in high yield by a reaction, in the presence of a boron trifluoride complex catalyst, of an aromatic compound with ##STR2## (X: H, Cl, Br; Y: Cl, Br) or with RCOOH in the presence of (XYCHCO).sub.2 O.
芳香酰基化合物##STR1##(Q:芳香化合物残基;R:直链、支链或环状脂肪族基团、芳香族基团或芳基基团)在存在
三氟化硼复合催化剂的情况下,通过芳香化合物与##STR2##(X:H、Cl、Br;Y:Cl、Br)或与RCOOH在(XYCHCO).sub.2 O存在下的反应高产率制备。