Preparation and NMR spectroscopy of (1,2-bis(diphenylphosphino)ethane)(η3-1,3-diarylallyl)-palladium tetrafluoroborates. Correlation of chemical shifts with Hammett substituent constants and with the regioselectivity of nucleophilic attack

M. Moreno-Mañas, F. Pajuelo, T Parella, R. Pleixats

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Abstract

13C NMR chemical shifts of the terminal allyl carbon atoms C-1 and C-3 of (1,2-bis-(diphenylphosphino)ethane)(η3-1,3-diarylallyl)palladium tetrafluoroborates correlate with σ Hammett substituent constants. For each complex the chemical shift at lower field indicates the site of preferred attack by soft nucleophiles in the Tsuji-Trost reaction.
Original languageEnglish
Pages (from-to)205-209
JournalOrganometallics
Volume16
Issue number2
DOIs
Publication statusPublished - 21 Jan 1997

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