Palladium−Hydride-Catalyzed Regiodivergent Isomerization of 1-Alkenes.

New stable palladium−hydride complexes catalyze the highly regio- and stereoselective isomerization of 1-alkenes at multiple positions. Tuning the ligand and the reaction conditions allowed the position and geometry of the double bonds to be controlled with excellent conversions and selectivities. The catalytic species, a Pd−H complex, was prepared by reacting [LPdCl₂] with a silver salt, followed by conversion into Pd−H by using a silyl hydride. The structures of the Pd complexes were determined by using X-ray crystallography and NMR spectroscopy. [ABSTRACT FROM AUTHOR]