<i>p</i>-Nitrophenyl Ethylthioester in Enantioselective Organocatalytic Michael Additions: Different Behaviour of β-Aryl and β-Alkyl Enals
作者:Sara Duce、María Jorge、Inés Alonso、José Luis García Ruano、M. Belén Cid
DOI:10.1002/ejoc.201300934
日期:2013.11
Although several nucleophiles derived from arylacetic acids have been described in catalysis via iminiumactivation, none have presented good enantioselectivity and reactivity with both β-alkyl and β-aryl enals. This study on the Michael addition of p-nitrophenylacetic thioesters suggests that this behavior is due to the different reactivity and distinct tendency to reversibility exhibited by these