| 摘要 |
<p>A process for producing a 5-arylpentanol of formula (2): <CHEM> wherein R<1> represents an aryl group which may be substituted with one or two or more of an alkyl or alkoxy group and has 6 to 12 carbon atoms in total, R<3> represents a hydrogen atom, or an alkyl or alkenyl group of 1 to 6 carbon atoms, and R<4> represents R<2> defined below when R<2> is a monovalent group or represents R<2>H when R<2> is a divalent group, which comprises effecting hydrogenolysis of a pyran compound of formula (1): <CHEM> wherein, R<1> and R<3> are as defined above, R<2> represents a hydrogen atom, an alkyl or alkenyl group of 1 to 6 carbon atoms, or an alkylidene or alkenylidene group of 1 to 6 carbon atoms, and a dotted line represents a possible bond and any one of the three bonds represented by dotted lines and solid lines is a double bond, in the presence of one or more catalysts selected from (a) a catalyst carrying two or more elements selected from noble metals in Group VIII in the periodic table and (b) an acid type palladium-supporting catalyst. 5-arylpentanols can be prepared in a high yield with low production of hydrocarbons without causing a problem with regard to corrosion of process equipment.</p> |
