Two-dimensional rotating-frame nuclear Overhauser enhancement (ROESY) spectra are used to determine the relative configurations at the chiral carbon atoms in the two diastereoisomers of [o-[graphic omittted]d(Ph2PCHMeCHMePPh2)]+PF6– derived from (+) Ph2PCHMeCHMePPh21 and [o-[graphic omittted]dCl]2 of known configurations, and hence to show that the (+) form of 1 has the R,Rconfiguration.
J. L. Bookham and W. McFarlane, J. Chem. Soc., Chem. Commun., 1993, 1352 DOI: 10.1039/C39930001352
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