Conformational behaviour of acetamide derivatives studied by NMR spectroscopic and computational methods

Four N-substituted and two N,N-disubstituted acetamides of related structures were studied with NMR spectroscopic and/or computational methods (force field, semiempirical and Hartree-Fock ab initio codes). The rotamers and the conformers were mapped. A possible extension of the amide conjugation and the existance/non-existance of the rotamers were explored.