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Mass spectra of tetrahydroisoquinoline-fused 1,3,2-O,N,P- and 1,2,3-O,S,N-heterocycles: influence of ring size and fusion, of present heteroatoms, substituent effects and of the stereochemistry on fra

  • The electron ionization (EI) mass spectra of a variety of stereoisomeric tricyclic 1,3,2-oxazaphosphino[4,3- a]isoquinolines (1-4), 1,2,3-oxathiazino[4,3-a]isoquinoline-4-oxides (5-7) and the -4,4-dioxides (8-10) of oxazaphospholo- and oxathiazolo[4,3-a]- (11, 12, 15 and 16) and -[3,4-b]isoquinolines (13, 14 and 17) were recorded. Ring size and fusion, the different heteroatoms (P and S) and substituents on the ring systems strongly influence the mass spectra. In addition, mass spectra of the stereoisomers of compounds 1, 2 and 13, 14 revealed stereochemically relevant differences which are not observed for the other pairs of isomers. Copyright © 2008 John Wiley & Sons, Ltd.

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Metadaten
Author:Ines Starke, Ildikkó Schuster, Ferenc Fülöp, Erich Kleinpeter
Document Type:Article
Language:English
Year of first Publication:2008
Year of Completion:2008
Release Date:2017/03/24
Source:Rapid Communications in mass spectrometry. - 22 (2008), 10, S. 1519 - 1527
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie