title: Electron impact mass spectrometry of some ketosugar derivatives.
abstract: The electron impact fragmentation of 1,2-O-isopropylidene-alpha-D-glycero-tetros-3-ulofuranose has been studied with the help of deuterium and 18O labelling. The effect of substituting a hydrogen atom of C-4 for a CH3 radical and that of replacing the carbonyl function with a cyanomethylenic substituent is also reported.
mesh_terms: D004583:Electrons; D008401:Gas Chromatography-Mass Spectrometry; D007536:Isomerism; D007661:Ketoses / Q000032:analysis*; D013058:Mass Spectrometry / Q000379:methods*
chemical_list: D007661:Ketoses