ISSN:
0021-8383
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Investigations to the Interaction between p-Substituted Benzaldehydes and N.M.R.-Shift ReagencesThe influence of n.m.r. shift reagents (Eu(fod)3 and Pr(fod)3) on the chemical shifts of p-dimethylaminobenzaldehyde has been investigated at 13C and 1H-n.m.r. spectroscopy. The induced shifts of the protons are quantitatively explained on the basis of pseudocontact interaction. In 13C-n.m.r. spectra significant contact interactions have also been noted. The 13C induced shifts have been separated into pseudocontact and contact contributions by two different methods. Calculations of relative equilibrium constants in mixtures have been carried out for p-dimethylaminobenzaldehyde, p-nitrobenzaldehyde, anisaldehyde and benzaldehyde. The relative equilibrium constants show a good correlation with the Hammett substituent constants.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.19803220508
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