Studies of cyclic acetals. XXIII—low resolution, electron impact mass spectra of some 6,8-dioxa-3-thiabicyclo[3.2.1]octanes and related 2-acetoxy, 3-oxo and 3,3-dioxo derivatives

Autor:	J. D. Wander, Derek Horton, Pierre Calinaud, Jacques Gelas
Rok vydání:	1978
Předmět:	Stereochemistry Low resolution chemistry.chemical_element Biochemistry Medicinal chemistry Sulfur Ion chemistry.chemical_compound Oxygen atom chemistry Fragmentation (mass spectrometry) Mass spectrum Molecular Medicine Instrumentation Spectroscopy Electron ionization Octane
Zdroj:	Organic Mass Spectrometry. 13:438-447
ISSN:	1096-9888 0030-493X
DOI:	10.1002/oms.1210130803
Popis:	Low resolution, electron impact mass spectra of 6,8-dioxa-3-thiabicyclo[3.2.1]octane and eight C-methyl or -phenyl derivatives are, in the main, similar to those of the corresponding 3,6,8-trioxa homologs. Oxygenation on C-2 or on the sulfur atom decreases the number of prominent fragments in the scheme of decomposition and apparently affords greater opportunity for formation of small, stable, acylium ions, but the added oxygen atoms generally do not direct major new modes of fragmentation.
Databáze:	OpenAIRE
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