An investigation into the shifts induced in the NMR spectra of some derivatives of substituted phenols by tris(dipivalomethanato)europium and tris(dipivalomethanato)praseodymium is reported. The phenol derivatives were studied to ascertain the possible utility of the shift reagents as an aid in the analysis of phenolformaldehyde resins by NMR spectroscopy, and to gain information on induced shifts with molecules having more than one possible co‐ordination site.
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Anderson et al. (1972) studied this question.
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