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    • 8. 发明专利
    • Method for producing 2-benzoyloxyacetaldehyde derivative
    • 生产2-苯甲酰氧基乙二醛衍生物的方法
    • JP2005306755A
    • 2005-11-04
    • JP2004123469
    • 2004-04-19
    • Daicel Chem Ind Ltdダイセル化学工業株式会社
    • NISHIKAWA KAZUYOSHI
    • C07B61/00C07C67/10C07C67/11C07C69/612C07C69/76C07C69/767C07C69/78C07D319/06C07D327/02C07D327/04
    • C07D327/04C07C67/11C07C69/78
    • PROBLEM TO BE SOLVED: To provide a method which can efficiently produce a 2-benzoyloxyacetaldehyde derivative by using an industrially easily available raw material. SOLUTION: This method for producing the 2-benzoyloxyacetaldehyde derivative comprises reacting a halogenated acetaldehyde acetal derivative represented by formula (1) (wherein R 1 and R 2 are the same or different and each a hydrocarbon group, and R 1 and R 2 may be bonded to each other to form a ring with the adjacent oxygen-carbon-oxygen bond; and X is a halogen) with a benzoic acid salt represented by formula (2) (wherein M is an alkali metal atom; and the benzene ring may have a substituent) in the presence of an alkali metal halide to obtain a compound represented by formula (3) (wherein R 1 and R 2 are the same as defined above; and the benzene ring may has a substituent). COPYRIGHT: (C)2006,JPO&NCIPI
    • 待解决的问题:提供一种可以通过使用工业上容易获得的原料有效地生产2-苯甲酰氧基乙醛衍生物的方法。 解决方案:用于制备2-苯甲酰氧基乙醛衍生物的方法包括使由式(1)表示的卤代乙醛缩醛衍生物(其中R 1 和R 2 相同或不同且各自为烃基,并且R“SP”1和R“SP”2可以彼此键合以形成具有相邻氧 - 碳 - 氧键的环;并且 X是卤素)与式(2)表示的苯甲酸盐(其中M是碱金属原子,苯环可以具有取代基)在碱金属卤化物的存在下反应,得到由式 3)(其中R 1 和R 2 与上述定义相同;苯环可具有取代基)。 版权所有(C)2006,JPO&NCIPI