Platinum cinnamyl alcohol oxidation

Vinylogs of benzylic alcohols, e.g. cinnamyl alcohol, undergo easy saturation of the double bond by catalytic hydrogenation over platinum, rhodium-platinum and palladium oxides [39] or by reduction with lithium aluminum hydride [609]. In the presence of acids, catalytic hydrogenolysis of the allylic hydroxyl takes place, especially over platinum oxide in acetic acid and hydrochloric acid [39]. 

Olefinic alcohols react smoothly with hydrogen over platinum oxide catalyst at room temperature. The procedure is illustrated by the preparation of dihydrocholesterol from cholesterol. Cinnamyl alcohol. CjH5CH = CHCH20H, is reduced to dihydrocinnamyl alcohol by lithium aluminum hydride. The reduction of allyl alcohol to n-propyl alcohol by the reagent, however, is unsatisfactory, ... 

The catalytic effect of platinum on the oxidation of cinnamyl alcohol... 

The catalytic aerobic oxidation of alcohols has a long history dating back to Dbbereiner s observation, in 1820, that ethanol is oxidized to acetic acid over platinum black. Indeed, this preceded the coining of the term catalysis, by Berzelius in 1835 The catalytic effect of platinum on the aerobic oxidation of cinnamyl alcohol was described by Strecker in 1855" and in the period 1912-1921 Wieland showed that finely divided palladium catalyzes the aerobic oxidation of primary alcohols to aldehydes in aqueous... 

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