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公开(公告)号:US4670607A
公开(公告)日:1987-06-02
申请号:US864432
申请日:1986-05-16
IPC分类号: C07C45/58 , C07D303/04 , C07D303/22
CPC分类号: C07D303/22 , C07C45/58 , C07D303/04
摘要: 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.
摘要翻译: 通过使下式的甲基(取代的芳基)酮与苯甲基硫酸甲酯硫酸盐反应,以高产率制备下式的2-(取代的芳基)丙醛,其中Ar表示
式中,在碱金属氢氧化物的存在下,得到含有下式的2-(取代的芳基)1,2-环氧丙烷的反应混合物,并且使反应混合物与无水MgCl 2接触。 通过在软亲核试剂如硫醚,硫醇和膦存在下使环氧丙烷化合物与无水MgCl 2接触,也可以高产率生产丙醛化合物。