| 摘要 |
<p>A process for preparing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethers representd by formula (I), (wherein R represents a lower alkyl group, and X1 and X2 each represents a hydrogen atom or a fluorine atom) by hydrogenating 3-phenoxybenzyl 2-(4-alkoxy-3-halogenophenyl)-2-methylpropyl ethers or 3-phenoxybenzyl 2-(4-alkoxy-3,5-dihalogenophenyl)-2-methylpropyl ethers represented by formula (II), (wherein R, X1, and X2 are as defdined above, and Y1 and Y2 each represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, with at least one of Y1 and Y2 being a chlorine, bromine or iodine atom) to remove the chlorine, bromine or iodine atom, which process is carried out in the presence of a hydrogenation catalyst by using as a hydrogenating agent a lower aliphatic alcohol and an alkaline compound selected from among an alkali metal hydroxide and an alkaline earth metal hydroxide. This process enables the compound (I) to be obtained in a high yield without using hydrogen.</p> |
