Die Kernresonanzspektren von N-substituierten 2.6-Dimethylmorpholinen

The NMR spectra of N-substituted 2,6-dimethylmorpholines after separation into cis- and trans-isomers by VPC have been investigated. The spectral parameters (chemical shift and coupling constants) are evaluated by a mathematical analysis. The spectra of the cis-compounds show some special features so far unexplainable. The difference of the chemical shift of the protons in 3-position of the cis-isomers depends strongly on the nature of the N-substituent.