Department of Chemistry, Irkutsk State University, 664003, Irkutsk, U.S.S.R.;Institute of Organic Chemistry, Academy of Sciences USSR, 664033, Irkutsk, U.S.S.R.
Abstract:
A positive contribution of more than 7 Hz to the direct 13C-13C spin-spin coupling constants induced by the proximity of the nitrogen lone pair in syn-orientation to the coupled nuclei allows an unambiguous configuration assignment of diverse oximes.