The Liquid Phase Hydrogen Transfer Reaction between Isopropyl Alcohol and Cyclohexanone with Solid Oxide Catalysts

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  • 固体酸化物触媒によるイソプロピルアルコールおよびシクロヘキサノン間の液相水素移行反応

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Nickel catalysts promote the reaction of hydrogen transfer involving an organic hydrogen donor (isopropyl alcohol) and an acceptor (cyclohexanone). We found that Neobead D exhibited high activity this reaction. Therefore, catalytic activities of solid oxide catalysts such as silica-alumina (Fig. 3) alkalitreated silica-alumina (Fig. 5) and magnesium or calcium oxide supported on Neobead C (alumina) (Figs. 7, 8) were examined. Moreover, the acidities, basicities and acid and base strengths of these catalysts at various compositions were measured (Figs. 4, 6, 9, 10). The results indicated that the catalytic activity for this reaction depended on both the acid and base sites on the surface of the solid oxide catalyst involved. Very strong or very weak acidity and basicity lessened the catalytic activity. Acid and base sites of moderated strengths were effective for this reaction.

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