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Paper | Regular issue | Vol 27, No. 5, 1988, pp.1169-1177
Published online, 1st January, 1970
DOI: 10.3987/COM-87-4262
The Mass Spectrometric Behaviour of Isomeric 1,3-Benzoxathiole and 1,4-Benzoxathiane Derivatives

Maria Teresa Cocco, Antonio Maccioni, and Gianni Podda*

*Istituto di Chimica Farmaceutica, Tossicologica ed Applicate, University of Cagliari, Via Ospedale 72, 09100 Cagliari, Italy


The mass spectrometric behaviour of isomeric 1,3-benzoxathiole and 1,4-benzoxathiane derivatives has been studied in detail with the aid of accurate mass measurements, B/E and B2/ E linked scans and Mass Analyzed Ion Kinetic Energy Spectra. While the molecular ions maintain the original structures, some fragment ions ieomerize to a common structure(s). The related electron impact induced decomposition mechanics are discussed in detail.