Decomposition of Protonated Threonine, Its Stereoisomers, and Its Homologues in the Gas Phase:  Evidence for Internal Backside Displacement

Autor: Serafin, S. V., Zhang, K., Aurelio, L., Hughes, A. B., Morton, T. H.
Zdroj: Organic Letters; May 2004, Vol. 6 Issue: 10 p1561-1564, 4p
Abstrakt: Protonated threonine and its allo diastereomer exhibit different proportions of collisionally activated dissociation (CAD) product ions. N-Methylation attenuates these differences. Water loss from protonated allo-threonine gives protonated trans-3-methylaziridinecarboxylic acid via an internal SN2 pathway, rather than protonated vinylglycine.
Databáze: Supplemental Index