Rate, and endo/exo and facial diastereostereoselectivity of the title reactions have been highly enhanced under the action of aluminum, among other metals used as catalysts, compared to the thermal processes. EtAlCl2 and Et2AlCl were the reagents that afforded the best results. © 1992.
|Publication status||Published - 1 Jan 1992|
Chen, Z., & Ortuño, R. M. (1992). Lewis acid catalyzed Diels-Alder additions of cyclopentadiene to methyl (E)- and (Z)-(S)-4,5-di-O-isopropylidenepent-2-enoates: Rate and stereoselectivity. Tetrahedron: asymmetry, 3(5), 621-628. https://doi.org/10.1016/S0957-4166(00)82295-8