RT info:eu-repo/semantics/article T1 The organocatalyzed domino Michael–aldol reaction revisited. Synthesis of enantioenriched 3-hydroxycyclohexanone derivatives by reaction of enals with α,α′-diaryl-substituted acetone A1 Guevara Pulido, James Oswaldo A1 Andrés García, José María A1 Pedrosa Sáez, Rafael K1 Química orgánica AB The reaction of enals with α,α′-diaryl-substituted acetones (pKa > 18) catalyzed by (S)-1-(2-pyrrolidinylmethyl) pyrrolidine provides direct access to enantioenriched 2,5,6-trisubstituted-3-hydroxy cyclohexanones. The process constitutes a highly stereoselective organocatalytic tandem Michael-intramolecular aldol reaction. It has been demonstrated that the stereoselection is dependent on the reaction conditions because only syn diastereoisomers are able to cyclize, and that anti diastereoisomers participate in a retro-Michael process decreasing the enantioselection. PB Royal Society of Chemistry SN 2046-2069 YR 2015 FD 2015 LK http://uvadoc.uva.es/handle/10324/21451 UL http://uvadoc.uva.es/handle/10324/21451 LA eng NO RSC Advances, 2015, 5, p. 65975-65981 NO Producción Científica DS UVaDOC RD 24-nov-2024