618436-90-1Relevant academic research and scientific papers
Nitrile Ylides: Diastereoselective cycloadditions using chiral oxzolidinones without Lewis acid
Mukund P, Sibi,Soeta, Takahlro,Jasperse, Craig P.
supporting information; experimental part, p. 5366 - 5369 (2010/02/28)
"Chemical Equation Presented" Lewis acid complexation Is generally required for chiral-auxiliary-controlled stereoselectivity, and chiral Lewis acid catalysis Is frequently optimal for Introducing asymmetry. In this work, we show that nitrlle ylide cycloadditions to electron-poor acceptors attached to chiral auxiliaries proceed In high yield and stereoselectivity in the absence of Lewis acids. In contrast, chiral Lewis acids are Inferior In these cycloadditions.
Stereocontrolled total synthesis of (-)-kainic acid
Sakaguchi, Hiroshi,Tokuyama, Hidetoshi,Fukuyama, Tohru
, p. 1635 - 1638 (2008/02/02)
A stereocontrolled total synthesis of (-)-kainic acid is described. A fully functionalized trisubstituted pyrrolidine ring was constructed by ring-closing metathesis of an acrylate derivative followed by an intramolecular Michael addition of the resultant
