194796-75-3Relevant academic research and scientific papers
The tetrahydrooxazinone way to enantiopure α-amino acids: Synthesis of cis and trans 3-vinyl pipecolic acids via an intramolecular reaction between an iminium ion and an allylsilane moieties
Agami, Claude,Bihan, Dominique,Hamon, Louis,Puchot-Kadouri, Catherine
, p. 10309 - 10316 (2007/10/03)
Reaction of glyoxal with a derivative of (R)-phenylglycinol having an allylsilane side-chain afforded a transient iminium ion. Intramolecular reaction of the iminium ion and the allylsilane moieties occurred in a totally stereoselective way. Straightforward transformations ultimately led to enantiopure either cis or trans 3-vinyl pipecolic acid methyl ester. The stereochemical course of this reaction was rationalized via AMI calculations.
Asymmetric Synthesis of Unsaturated Pipecolic Acid Derivatives
Agami, Claude,Bihan, Dominique,Morgentin, Rémy,Puchot-Kadouri, Cathy
, p. 799 - 800 (2007/10/03)
Two enantiopure pipecolic acid derivatives having an olefinic moiety were synthesized from an intramolecular addition of allyl silanes on an iminium double bond. The iminium moiety was generated via a reaction of chiral β-amino alcohols with glyoxal.
