Complexes of PdCl2 with phosphoryl- and thiophosphoryl-substituted phosphines as catalysts for the hydrocarboxylation of olefins
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The influence of the ligands Ph2P(CH2)mP(X)Ph2 (L), where m=1, 2 and X=O, S, on the rate and regional selectivity of the hydrocarboxylation of α-olefins has been investigated, catalyzed by PdCl2, in a series of organic solvents. A high regional selectivity of the process (>80%) for products with normal structure has been achieved by using L with m=2, X=O. The influence of the ligand used and of triphenylphosphine on the properties of the catalytic system in the given reaction has been compared.
Keywordshydrocarboxylation palladium chloride complexes bidentate diphosphines catalysis
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