We report the preparation of palladium nanoparticles supported on mesoporous natural phosphate (Pd@NP) using a wetness impregnation method. The prepared catalyst was characterized using various techniques. Furthermore, the reduction and preparation of the palladium nanoparticles was followed using UV–visible spectra. Based on the Scherrer equation, the crystallite size of the as‐synthesized palladium nanoparticles was 10.88 nm. The performance of the synthesized catalyst was investigated in the reduction of 4‐nitrophenol as a model substrate to 4‐aminophenol using NaBH4 as a hydrogen source. Moreover, catalytic reduction of various nitroarenes was studied and monitored using UV–visible spectroscopy and gas chromatography. The Pd@NP catalyst showed a high activity for the selected reaction and could be recycled.

Thepalladium(0)catalyzedaminationofallylicacetatesandcarbonatesderivativesfromterpenicolefinswascarriedoutundermild conditions.Thereactionoffersaverygoodmethodforthepreparationofallylicaminesandthustoprovideausefulentrytonew functionalizedterpenicolefinproducts.Themechanisminvolvingaformationofp-allyl-palladiumintermediatecomplexisingood agreementwiththeresultsobtainedwiththeopticallyactivesubstrates,aswellasviaananalysisoftheobservedregio-andstereoselectivity.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

No abstract

No abstract

No abstract