A 2-(substituted aryl)propionaldehyde of the formula, ##STR1## (wherein Ar denotes ##STR2## is produced in high yield by reacting a methyl (substituted aryl) ketone of the formula ##STR3## with phenyldimethylsulfonium methylsulfate of the formula, ##STR4## in the presence of alkali metal hydroxide to obtain a reaction mixture containing 2-(substituted aryl)1,2-epoxypropane of the formula, ##STR5## and thioanisole, and subjecting the reaction mixture to contact with anhydrous MgCl.sub.2. The propionaldehyde compound is also produced in high yield by contacting the epoxypropane compound with anhydrous MgCl.sub.2 in the presence of a soft nucleophile such as a sulfide, a thiol and a phosphine.
以下是根据您提供的文字翻译成中文的结果:
通过将具有以下公式##STR3##的甲基(取代芳基)酮与具有公式##STR4##的苯基二
甲基磺酸甲基磺酸盐在碱
金属氢氧化物的存在下反应,可以获得含有2-(取代芳基)-1,2-环氧
丙烷(公式##STR5##)和
甲苯硫醚的反应混合物,并将反应混合物与无
水MgCl2接触,高效地生产出具有公式##STR1##的2-(取代芳基)
丙醛(其中Ar表示##STR2##)。该
丙醛化合物也可以通过将环氧
丙烷化合物与无
水MgCl2接触,在诸如
硫醚、巯基和膦这样的软亲核试剂的存在下以高收率获得。