Co-dimerisation of 1,3-dienes and acrylic esters catalysed by cationic allylpalladium complexes: the role of phosphines
Abstract
Basic phosphines, especially tributylphosphine, when added in 1 : 1 ratio to cationic allylpalladium complexes, allow the selective co-dimerisation of 1,3-dienes and acrylic esters to linear, unsaturated esters, presumably owing to the inducement of an η3–η1 shift of the allyl ligands by the phosphines.
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