Reactions of 3, 3-diphenylcyclopropene with iridium (I) complexes: probing the mechanism of cyclopropene rearrangements at transition metal centers

…, SBT Nguyen, RH Grubbs, JW Ziller

Index: Li, Robert T.; Nguyen, SonBinh T.; Grubbs, Robert H.; Ziller, Joseph W. Journal of the American Chemical Society, 1994 , vol. 116, # 22 p. 10032 - 10040

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Citation Number: 30

Abstract

Abstract: This paper describes the syntheses and reactivities of a series of IrCl (CO)(PR~)~(~ 2-3, 3-diphenylcyclopropne) complexes (1, PR3= PMe3; 2, PR3= PMe2Ph; 3, PR3= PMePh2; 4, PR3= PEt3). NMR spectroscopic data for these complexes and a single crystal X- ray diffraction study of 1 support a trigonal bipyramidal structure where the PR3 ligands and the olefin lie in the equatorial plane. The equilibrium between free and bound olefin was ...