Guanidinium-catalyzed addition of pyrrolidine to 2-(5H)-furanone
作者:Marta Martı́n-Portugués、Victoria Alcázar、Pilar Prados、Javier de Mendoza
DOI:10.1016/s0040-4020(02)00195-3
日期:2002.4
Bicyclic guanidinium derivatives with different side arms efficiently catalyze the conjugate addition of pyrrolidine to 2-(5H)-furanone, the best results being obtained when the two chains are an aromatic residue and an amine or imidazole, respectively. The catalysis is likely due to the development of strong ion-pairing and hydrogen-bonding in the transition state.