An Asymmetric Organocatalytic Quadruple Domino Reaction Employing a Vinylogous Friedel-Crafts/Michael/Michael/Aldol Condensation Sequence

Autor: Dieter Enders, Lars Fritze, Nico Erdmann, Arne R. Philipps
Rok vydání: 2016
Předmět:
Zdroj: Synthesis
Synthesis 47(16), 2377-2384 (2015). doi:10.1055/s-0034-1380197
ISSN: 0039-7881
DOI: 10.1055/s-0034-1380197
Popis: An organocatalytic quadruple cascade initiated by a Friedel–Crafts-type reaction is described. The (S)-diphenylprolinol trimethylsilyl ether catalyzed reaction yields highly functionalized cyclohexenecarbaldehydes bearing a 1,1-bis[4-(dialkylamino)phenyl]ethene moiety and three contiguous stereogenic centers. The reaction tolerates various functional groups and all products are obtained with very good diastereoselectivity and with virtually complete enantiomeric excess.
Graphical Abstract
Databáze: OpenAIRE