| Literature DB >> 26138505 |
Sebastian Klimczyk1, Antonio Misale1, Xueliang Huang2, Nuno Maulide3.
Abstract
A gold-catalyzed asymmetric cyclopropanation of unactivated olefins with sulfonium ylides in the presence of a bimetallic catalyst with a novel dimeric TADDOL-phosphoramidite ligand is reported. This transformation allows a rare gold-catalyzed dynamic deracemization of chiral racemic substrates, where the same catalyst is responsible for several synergistic tasks in solution. The products are useful building blocks in synthesis and enable expeditious access to natural products.Entities:
Keywords: cyclopropanation; deracemization; enantioselective synthesis; lactones; total synthesis
Year: 2015 PMID: 26138505 DOI: 10.1002/anie.201503851
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN: 1433-7851 Impact factor: 15.336