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- Title
Enantioselective Photolysis and Quantitative Chiral Analysis of Tryptophan Complexed With Alkali-Metalized L-Serine in the Gas Phase.
- Authors
Fujihara, Akimasa; Maeda, Naoto; Hayakawa, Shigeo
- Abstract
The of a cold gas-phase noncovalent complex of tryptophan with alkali-metalized L-serine, M+(L-Ser)(Trp) (M = Na and Li), was examined using a tandem mass spectrometer containing a variable-temperature ion trap. CO2 loss from Trp in the clusters was enantiomerically selective in ultraviolet excitation with linearly polarized light. M+(L-Ser) promoted the of Trp as a chiral auxiliary. The of the D-enantiomer was applied to a quantitative chiral analysis, in which the optical purity of tryptophan could be determined by measuring the relative abundance ratio R of the CO2 loss to the chiral-independent evaporation of L-Ser in a single photodissociation mass spectrum of M+(L-Ser)(Trp). Chirality 27:349-352, 2015. © 2015 Wiley Periodicals, Inc.
- Subjects
ENANTIOSELECTIVE catalysis; CHIRAL recognition; TRYPTOPHAN; GAS phase reactions; SERINE derivatives; QUANTITATIVE chemical analysis
- Publication
Chirality, 2015, Vol 27, Issue 5, p349
- ISSN
0899-0042
- Publication type
Article
- DOI
10.1002/chir.22442