A novel method for incorporation of palladium nanoparticles into a porous
hypercrosslinked polystyrene matrix has been developed. The composite obtained
by reduction of [Pd(π-allyl)Cl]2 with hydrogen in
supercritical CO2 shows high catalytic activity in the
hydrogenation of benzene and can be used twelve (12) times in a row without any
decrease in conversion rate. The catalyst is also suitable for quantitative
hydrogenation of toluene, tetralin and phenol. The obtained catalytic system is
compared with the palladium composite synthesized by a conventional method based
on hypercrosslinked polystyrene.
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