Abstract
Palladium(0) phosphine complexes in the presence of water catalyze the co-oligomerization of butadiene and cyclic ketones to yield α-octadienyl derivatives. It is assumed that the hydrido hydroxo complex [PdH(L) 3]OH, formed through the oxidative addition of water to PdL n (L = tertiary phosphine), is the catalytically active species. The co-oligomerization of butadiene and cyclopentanone has been studied in detail. The ligand size appears to affect the conversion of butadiene to products.
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