ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Hindered rotation in two o-substituted N,N-dimethylthiobenzamides was investigated by variable temperature 1H NMR spectroscopy. For one compound, the enthalpies and entropies of activation for (i) thioamide group rotation around the Ar—C bond and (ii) dimethylamino group rotation around the C—N bond were obtained by full line shape analysis; a possible coupling between the two processes is discussed. A new simple method has also been applied to the analysis of dimethylamino exchange and results are in complete agreement with the full line shape analysis with somewhat better precision.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270070113
Permalink