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    • 6. 发明公开
    • Process for producing cycloalkanone derivatives
    • Verfahren zur Herstellung von Cycloalkanonderivaten
    • EP1433773A1
    • 2004-06-30
    • EP03029676.8
    • 2003-12-23
    • KAO CORPORATION
    • Mine, KojiFukuda, Kimikazu
    • C07C45/72C07C45/66C07C45/67C07C49/493C07C67/343C07C69/716C07D315/00
    • C07C45/72C07C45/66C07C45/67C07C67/343C07C2601/08C07C49/647C07C49/597C07C49/493C07C69/716
    • The present invention provides a process for producing 2-(1-hydroxyalkyl)cycloalkanone and/or 2-(1-hydroxyaryl)cycloalkanone in high yield and selectivity, as well as a process using the same to produce a cycloalkanone derivative useful as a perfume material and a physiologically active substance. Disclosed is a process for producing compound (3), which includes subjecting a cycloalkanone, and aldehyde (2) containing carboxylic acid (1), to aldol condensation in the presence of water and a basic catalyst, wherein the molar amount (referred to hereinafter as A) of the basic catalyst added is not less than the molar amount (referred to hereinafter as B) of the carboxylic acid (1) contained in the aldehyde (2) and the difference between A and B, that is, (A - B) is 0.06 mol or less per mol of the aldehyde (2) , as well as a process for producing compounds (7) and (8) by using the compound (3) obtained by the above process.
    • 本发明提供以高产率和选择性生产2-(1-羟基烷基)环烷酮和/或2-(1-羟基芳基)环烷酮的方法,以及使用该方法制备可用作香料的环烷酮衍生物的方法 材料和生理活性物质。 公开了一种制备化合物(3)的方法,其包括使环烷酮和含有羧酸(1)的醛(2)在水和碱性催化剂存在下进行醛醇缩合,其中摩尔量(以下称为 作为A),不低于醛(2)中所含的羧酸(1)的摩尔量(以下称为B)和A和B之间的差异,即(A- B)相对于每摩尔醛(2)为0.06摩尔或更少,以及通过使用通过上述方法获得的化合物(3)制备化合物(7)和(8)的方法。