| Abstract
| - (Cyclohexylmethylphenylphosphine)[(1-η1:6−8-η3)-octa-2,6-diene-1,8-diyl]palladium(II) (1)was synthesized from bis(η3-propenyl)palladium(II) and 1,3-butadiene in the presence ofracemic cyclohexylmethylphenylphosphine (2) and exists in the form of two diastereomericpairs of enantiomers 1a,b. The diastereomers have been fully characterized by NMRspectroscopic methods, with special focus on their stereochemistry. The molecular structureof 1b was determined by X-ray crystallography and confirmed the results of the NMRinvestigation: in both diastereomers the C8H12 chains exhibit the same rigid topology andthus represent an inherent chiral element in these intermediates originating from butadienecoupling. This is an essential prerequisite for subsequent enantioselective transformationsof complexes of type 1.
- The stereochemical abilities of a phosphine(η1:η3-octadienediyl)palladium(II) intermediate have been investigated by 2D NMR spectroscopy and X-ray crystal structure analysis.
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