Ez. Garcia et al., HYDROGENATION OF 5-SUBSTITUTED 4-CARBOMET HOXY-4-PYRROLIN-2-ONES - A SEMIEMPIRIC STUDY, Anales de quimica, 91(7-8), 1995, pp. 594-598
Catalytic hydrogenation of 4-alkoxycarbonyl-4-pyrrolin-2-ones gave dif
ferent results depending the steric or electronic effects of substitue
nts in C-5. A semiempiric study of these structures showed a correlati
on between HOMO energies and reactivity.