
%0 Journal Article
%A Rae, ID 
%T Aromatic amides. IX. Temperature effects on the N.M.R. spectra of substituted acetanilides
%J Australian Journal of Chemistry
%D 1974/12/01
%V 27
%N 12
%P 2617-2620
%K 
%R https://doi.org/10.1071/CH9742617
%U https://www.publish.csiro.au/paper/CH9742617 
%X N.m.r. spectra have been measured for several anilides in dimethyl sulphoxide solution for temperatures in the range 40-140°. The change of the N-H chemical shift with temperature depends on the nature of the ortho substituent on the benzene ring, being least when a strong intramolecular hydrogen bond is possible between the amide N-H and the ortho substituent. For 2?-nitroanilides, the 6?- proton becomes increasingly deshielded as the temperature is raised. 
