
TY  - JOUR
A1  - O'Conner, CJ 
A1  - Martin, RW 
A1  - Calvert, DJ 
T1  - Substituent effects on the N.M.R. spectra of carboxylic acid derivatives. II. <sup>3</sup>H N.M.R. spectra of substituted benzamides and N-alkylbenzamides
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1981
VL  - 34
IS  - 11
SP  - 2297
EP  - 2305
KW  - 
UR  - https://doi.org/10.1071/CH9812297 
N2  - The tritium n.m.r. spectra of 12 substituted benzamides and five series of N-alkylbenzamides have been measured, after tritiation of the amides, and the chemical shifts, &#948;N3H, have been compared with &#948;NH. The values correlate well when &#963;R(BA) is substituted in the Taft DSP equation. Good correlations are also obtained with the Hammett &#963; parameter. The non-equivalence of the two amido protons of benzamides, arising from the barrier to rotation round the carbon-nitrogen bond, has been confirmed by use of triton n.m.r. spectroscopy. 
ER  -

