cupreine has been researched along with cyclopropane* in 1 studies
1 other study(ies) available for cupreine and cyclopropane
| Article | Year |
|---|---|
Asymmetric cyclopropanation of conjugated cyanosulfones using a novel cupreine organocatalyst: rapid access to δ(3)-amino acids.
An organocatalytic asymmetric synthesis of a novel, highly functionalised cyclopropane system furnished with versatile substituents and containing a quaternary centre is described. The process utilises a new bifunctional catalyst based on the cinchona alkaloid framework and the products made using this catalyst were obtained as single diastereoisomers, with very high enantioselectivities (up to 96% ee). We have also demonstrated that these resulting cyclopropanes are very useful synthetic intermediates to interesting products, such as the difficult to access δ(3)-amino acids. Topics: Amino Acids; Catalysis; Cyclopropanes; Molecular Structure; Quinolines; Stereoisomerism; Sulfones; Time Factors | 2015 |