RT info:eu-repo/semantics/article T1 One-pot Sequential Organocatalytic Michael-Tishchenko-Lactonization Reactions. Synthesis of Enantioenriched 4, 5, 6 -Trisubstituted - Lactones A1 Guevara Pulido, James Oswaldo A1 Andrés García, José María A1 Pedrosa Sáez, Rafael K1 Catalizadores K1 Química orgánica AB Enantioenriched trisubstituted lactones were obtained in good yields and moderate to very good enantioselectivities in one-pot process, which implies a sequential organocatalyzed Michael addition of ketones to enals, followed by catalytic intramolecular diastereoselective Tishchenko reaction and lactonization. The final lactones were obtained as single diastereoisomers, demonstrating that the mixture of the anti and syn diastereomers epimerized to the syn hydroxy ester during the oxido-reduction step. PB American Chemical Society SN 0022-3263 YR 2014 FD 2014 LK http://uvadoc.uva.es/handle/10324/21448 UL http://uvadoc.uva.es/handle/10324/21448 LA eng NO Journal of Organic Chemistry, 2014, 79(18), p. 8638-8644 NO Producción Científica DS UVaDOC RD 28-nov-2024