Lanthanide Shifts in the 1H N.M.R. Spectra of 1, 4-Naphthoquinones

Donald W. Cameron, Geofrey I. Feutrill, Antonio F. Patti

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Lanthanide-induced shifts are discussed for 38 naphthoquinones incorporating a wide variety of substituents. For substrates unsymmetrically substituted in the benzenoid ring the shift reagent leads to spectroscopic differentiation of the quinonoid protons H 2 and H 3 in most cases. This has permitted assignment of substituents to one or other of these positions, an approach exemplified for derivatives of 5- and 6(7)-methoxy-l, 4-naphthoquinone.

Original languageEnglish
Pages (from-to)575-584
Number of pages10
JournalAustralian Journal of Chemistry
Issue number3
Publication statusPublished - 1 Jan 1979
Externally publishedYes

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