Isolated Double Bonds in the Presence of a Carbonyl Group

1 Isolated Double Bonds in the Presence of a Carbonyl Group 

Isolated double bonds are usually hydrogenated in preference to a carbonyl group over most catalysts, unless the double bonds are strongly hindered. Palladium catalysts ap- 

A number of examples are known where palladium catalysts were applied to the selective hydrogenation of unsaturated ketones to saturated ketones. Hydrogenation of 4-acetylcyclohexene to acetylcyclohexane took place rapidly with a small amount of 

Uptake of hydrogen never went beyond 1 molar equivalent.203 Examples of the 

Examples of the use of platinum and nickel catalysts are seen in the hydrogenation of 2-allyl-2,6-dimethylcyclohexanone to 2-propyl-2,6-dimethylcyclohexanone over platinum oxide (eq. 3.48)207 and 2-allylcyclohexanone to 2-propylcyclohexanone over Raney Ni (eq. 3.49).208 

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