Figure 16.
Most stable calculated 13(E)-a2 and 14(E)-b2α iminium intermediates. Closest distances between methylene group and C2 imidazolidinone ring substituents are shown (Å).
Most stable calculated 13(E)-a2 and 14(E)-b2α iminium intermediates. Closest distances between methylene group and C2 imidazolidinone ring substituents are shown (Å).