Stereochemistry of ephedrine- and pseudo-ephedrine-derived oxazolidines and of their N-borane adducts determined by nuclear Overhauser effect difference spectroscopy
Abstract
Nuclear Overhauser effect difference spectra of 1,3-oxazolidines derived from ephedrine and pseudo-ephedrine and of their N-borane adducts allow the configuration at C(2) and N to be assigned.