RU-SN CATALYST - A NEW PROMISING SYSTEM FOR SELECTIVE HYDROGENATION OF A CARBONYL GROUP

Unsaturated alcohols are prepared by selective hydrogenation of unsatu rated aldehydes, ketones, acids, and their esters. Special attention i s paid to the Ru-Sn catalytic systems suitable for such reactions. The Ru-Sn catalyst is usually prepared by co-impregnation, sol-gel method , or so called surface controlled reaction. Interesting topics and spe cific features regarding this catalyst system are discussed. Role of S n and its promotion effect on Ru catalytic properties are explained in a separate chapter. These properties are documented on several practi cal examples (e.g., selective hydrogenation of cinnamaldehyde, crotona ldehyde, oleic acid, etc.).