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Electron impact fragmentation of some tetramethyl derivatives of thiathrene and phenoxathiin
Author(s) -
SaintRuf G.,
ServoinSidoine J.,
Coic J. P.
Publication year - 1974
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570110302
Subject(s) - chemistry , fragmentation (computing) , thianthrene , mass spectrum , electron ionization , dibenzothiophene , ion , sulfur , computational chemistry , medicinal chemistry , organic chemistry , ionization , computer science , operating system
Mass spectra of thiathrene and three tetramethylthiathrenes (II), (III) and (IV) are reported and discussed. The principal mode of fragmentation of these compounds consists of the loss of sulphur to give the corresponding dibenzothiophene ion. The general pattern of electronolytic decomposition among the tetramethylthianthrenes is, however, much more complex. The mass spectrum of 2,3,7,8‐tetramethylphenoxathiin (VI) is also reported and compared with the spectrum of the corresponding thianthrene derivatives.