Abstract A new method for determining conformations and configurations of imidate esters was developed based on NOE difference spectra in CDCI 3. As a test of the method, methyl N-methylacetimidate was determined to exist in the E configuration, ap conformation, in agreement with assignments by homoallylic coupling and dipole moment data. Methyl N-tert- butylformimidate, for which existing methods were not suitable, was also determined to ...
