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Mass spectra of ortho substituted 1‐phenyl‐2‐thioureas
Author(s) -
Grehn Leif
Publication year - 1977
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.1210120502
Subject(s) - alkyl , mass spectrum , deuterium , chemistry , labelling , ion , medicinal chemistry , spectral line , proton , group (periodic table) , stereochemistry , crystallography , organic chemistry , physics , atomic physics , biochemistry , quantum mechanics , astronomy
The mass spectra of some 1‐( o ‐alkylphenyl)‐2‐thioureas have been investigated and deuterium labelling shows that the proton lost in the SH⋅ abstraction originates from the α‐hydrogens in the o ‐alkyl group. The intensity of the fragment ion formed by loss of the o ‐alkyl group increases with the stability of the corresponding alkyl radical.