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The mass spectra of benzamide and thiobenzamide
Author(s) -
Holmes J. L.,
Benoit F.
Publication year - 1971
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.1210050504
Subject(s) - benzamide , mass spectrum , chemistry , fragmentation (computing) , hydrogen bond , ion , scrambling , amide , benzoic acid , imide , spectral line , medicinal chemistry , polymer chemistry , organic chemistry , molecule , physics , philosophy , astronomy , computer science , operating system , linguistics
The mass spectra of benzamide, thiobenzamide and their N‐ d 2 analogues have been studied In addition to fragmenting by simple bond cleavages the molecular ions dissociate partly from their imide forms. Equilibration or ‘scrambling’ of ortho ring hydrogen atoms with amide hydrogen did not occur in benzamide but such exchange must take place in the thiocompound whose fragmentation behaviour is very complex. Neither labelled compound produced the label‐retaining benzoyl (thiobenzoyl) cation which has been the subject of much interest in the mass spectrum of O‐ d 1 benzoic acid.