Photochemistry of Aminoketones, XII. The Behaviour of N-Acylglycinate Rotamers in the Photochemical Glycine->Proline Conversion

Article abstract of DOI:10.1007/BF00809282

The rate of the diastereoselective generation of methyl 3r,2t-N-acyl-3-hydroxy-3-phenyl-prolinates 5 from n,?^*-excited methyl N-acyl-N-(β-benzoylethyl)-glycinates 4 depends on the height of the barrier ΔG_c(excit.) of amide rotation i