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Specific isotopic labeling of sugars: Applications in mass‐spectral analysis. The mass spectrum of 1,6‐anhydro‐2,3‐O‐iso‐Propylidene‐β‐ D ‐talopyranose
Author(s) -
Horton Derek,
Just Ernst K.,
Wander Joseph D.
Publication year - 1972
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210061009
Subject(s) - chemistry , deuterium , fragmentation (computing) , metastability , mass spectrometry , mass spectrum , molecule , ion , isotopic labeling , mass , hydrogen , electron ionization , analytical chemistry (journal) , crystallography , chromatography , organic chemistry , physics , computer science , ionization , operating system , quantum mechanics
Derivatives of 1,6‐anhydro‐2,3‐O‐isopropylidene‐β‐ D ‐talopyranose (I) specifically deuterated at C‐3 (II), at C‐4 (III), at C‐3 and C‐4 (IV), and in the isopropylidene group (V) have been examined by high‐resolution, electron‐impact mass spectrometry. From the elemental compositions of the fragment ions, the mass‐number shifts upon deuterium incorporation, and analysis of metastable transitions, it was possible to identify the origin of the hydrogen atoms in all fragments formed from I and to present a complete scheme of fragmentation pathways undergone by this molecule.