Production of a hydroxy arylophenone by reacting an aromatic carboxylic acid Ar(--CO.sub.2 H).sub.p where Ar is an aromatic radical, (--CO.sub.2 H) is an aromatic carboxylic acid group, and p is 1 or 2 with an aromatic compound H--Ar'--OH where Ar' is an aromatic radical and --H and --OH are aromatically bound para to each other in a benzenoid ring, in the presence of an alkyl sulphonic acid, particularly methane sulphonic acid, to produce a hydroxy arylophenone of formula Ar(--CO--Ar'--OH).sub.p where the carbonyl and hydroxyl groups are para to each other in the hydroxyl-containing benzenoid ring of Ar'. The production of the hydroxy arylophenone proceeds through the intermediate ester (H--Ar'--O--CO--).sub.p Ar and the production of the hydroxy arylophenone starting from the ester is also claimed.
通过使用烷基
磺酸(特别是
甲烷磺酸)催化反应,将芳香
羧酸Ar(--CO.sub.2 H).sub.p(其中Ar为芳香基,(--CO.sub.2 H)为芳香
羧酸基,p为1或2)与芳香化合物H--Ar'--OH(其中Ar'为芳香基,--H和--OH在苯环上对位芳基结合)反应,制备羟基芳基酮化合物,其
化学式为Ar(--CO--Ar'--OH).sub.p,其中羰基和羟基在Ar'的含羟基苯环上对位。制备过程中,通过中间体酯(H--Ar'--O--CO--).sub.p Ar进行反应,同时还声称可以从酯出发制备羟基芳基酮化合物。