15. Analytical Techniques:IR, NMR, Mass Spect
Mass Spect:Fragmentation
Problem 21
Textbook Question
Textbook QuestionAn unknown compound gives a mass spectrum with a weak molecular ion at m/z 113 and a prominent ion at m/z 68. Its NMR and IR spectra are shown here. Determine the structure, and show how it is consistent with the observed absorptions. Propose a favorable fragmentation to explain the prominent MS peak at m/z 68.
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