32005-36-0, Name is Bis(dibenzylideneacetone)palladium, belongs to catalyst-palladium compound, is a common compound. Application In Synthesis of Bis(dibenzylideneacetone)palladiumIn an article, once mentioned the new application about 32005-36-0.
Isoprene and the three nucleophiles 2,2,2-trifluoroethanol, benzyl alcohol, and furfuryl alcohol are converted in a palladium-catalyzed process into mixtures of terpenoic ethers.Ten telomers (1 – 4 and 5 – 7a, b) were isolated as the main products and characterized by their spectral data.With trifluoroethanol the tail-to-head linkage of the isoprene units was predominant; with the bulkier nucleophiles benzyl alcohol and furfuryl alcohol only the tail-to-tail coupling was observed.Palladium complexes with ligands of hight basicity and small cone angles are active cataly sts.In the telomerization with trifluoroethanol, arylphosphanes and alkyl phosphites as ligands at Pd gave the best yields of telomers; with benzyl alcohol and furfuryl alcohol, arylphosphanes and unbranched alkylphosphanes are the most active ligands.The product distribution could be controlled by catalyst, solvent, and reaction parameters.The highest yields of telomers were obtained at mild temperatures (70 deg C) and long reaction times (ca. 100 h).A mechanism based on bridged dinuclear palladium complexes is discussed.
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method