Cascales Jiménez, VictorCarneros García, HéctorCastro Álvarez, AlejandroCosta i Arnau, Anna M.Vilarrasa i Llorens, Jaume2022-05-252022-05-252021-01-111523-7060https://hdl.handle.net/2445/186040Chiral nitroalkenes are used for the first time in Michael additions of aldehydes, catalyzed by pyrrolidine derivatives. They yield the same major stereoisomer with either (S)-proline or (R)-proline, but this asymmetric induction does not overcome the effect of sterically more congested catalysts. Nitrocyclobutane intermediates are often formed, which are more stable than those from (E)-1-nitro-2-phenylethene. The cyclobutanes and final products were characterized by 2D NMR and chemical correlations5 p.application/pdfeng(c) American Chemical Society , 2021Reaccions d'addicióAldehidsCatalitzadorsAddition reactionsAldehydesCatalystsinfo:eu-repo/semantics/article7109152022-05-25info:eu-repo/semantics/openAccess