Polymer-supported reagents alkene hydrogenation

Polymer-supported reagent. Palladium(II) chloride supported on polymeric diphenylbenzylphosphine is a very active catalyst for hydrogenation of alkenes and alkynes and for isomerization of double bonds. 

Other imaginative uses of rare earths include the reduction of alkenes, aldehydes and ketones with intermetalhc compounds containing absorbed hydrogen, viz. LaNijHg (Imamoto et al., 1984d). The use of duPont s Nafion polymer as a support for Cr(III) and Ce(IV) reagents useful in the oxidation of alcohols has also been reported (Kanemoto et al., 1984). Such conversions also involved the use of t-butylhydroperoxide or sodium bromate as cooxidant. 

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