Asymmetric Organocatalysis Accelerated via Self‐Assembled Minimal Structures
作者:Arianna Sinibaldi、Francesca Della Penna、Marco Ponzetti、Francesco Fini、Silvia Marchesan、Andrea Baschieri、Fabio Pesciaioli、Armando Carlone
DOI:10.1002/ejoc.202101042
日期:2021.10.21
Self-assembling minimalistic peptides embedded with an organocatalytic moiety were designed and tested in a Michael reaction as a proof of concept for acceleratedorganocatalysis.
嵌入有机催化部分的自组装简约肽在迈克尔反应中被设计和测试,作为加速有机催化的概念证明。
Polarity-Directed One-Pot Asymmetric Cascade Reactions Mediated by Two Catalysts in an Aqueous Buffer
作者:Steven T. Scroggins、Yonggui Chi、Jean M. J. Fréchet
DOI:10.1002/anie.200902945
日期:2010.3.22
difference in distinguishing substrates of otherwise nearly identical chemical reactivities. A one‐pot cascadereaction involving nitromethane and two aliphatic aldehydes with similar reactivities has been developed (see scheme). The use of a biphasic reaction medium with two different organic catalysts results in the controlled incorporation of both aldehyde substrates into a single major cross‐product
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.