Synthesis of <i>N</i>-alkylated lipopeptides and their application as organocatalysts in asymmetric Michael addition in aqueous environments
作者:José A. C. Delgado、Fidel E. M. Vicente、Alexander F. de la Torre、Vitor A. Fernandes、Arlene G. Corrêa、Márcio W. Paixão
DOI:10.1039/d1nj01112j
日期:——
through an isocyanide-based multicomponent reaction. Various structural motifs were tunably introduced on the catalyst backbone with the aim of incorporating amphiphilic features. Consequently, they have further been evaluated in the 1,4-addition of aldehydes to trans-β-nitrostyrene having water as the sole solvent. Under sustainable reactionconditions, Michael adducts were obtained in excellent yields
Polyethylene glycol (PEG) as a reusable solvent medium for an asymmetric organocatalytic Michael addition. Application to the synthesis of bioactive compounds
作者:Karla S. Feu、Alexander F. de la Torre、Sandrina Silva、Marco A. F. de Moraes Junior、Arlene G. Corrêa、Márcio W. Paixão
DOI:10.1039/c4gc00098f
日期:——
A highly stereoselective organocatalytic Michael addition of aldehydes to trans-β-nitrostyrenes using PEG as a recyclable solvent medium is presented.