Mikaia, A.
, Shevtsov, V.
, Poshivalov, S.
and Varlamov, A.
(1990),
Mass spectra of 10,10-dimethyl-9,10-dihydro-10-sila-2-azaanthracenes with heterocyclic substituents at C-9, Russian Chemical Bulletin, [online], https://doi.org/10.1007/BF00961719
(Accessed October 14, 2025)
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Mass spectra of 10,10-dimethyl-9,10-dihydro-10-sila-2-azaanthracenes with heterocyclic substituents at C-9
Published
Author(s)
, Victor Shevtsov, Sergei Poshivalov, Alexey V. Varlamov
Abstract
Major fragmentation of dihydrosilaazaanthracenes, contammg an azetidine substituent, spiro-3-lactam ring, or spirotetrahydrofuryl residue at C9 upon electron impact are due to the presence of these rings. The azetidine ring may be eliminated as a radical or by splitting "in half". The loss of the tetrahydrofuryl ring leads to ions of 9-methylene- and 9-oxosi/aazaanthracenes. The dimethylsilyl group loses a methyl radical at various stages of the decomposition.Citation
Russian Chemical Bulletin
Volume
39
Issue
5
Pub Type
Journals
Download Paper
Keywords
Mass spectra, Electron ionization, 10-sila-2-azaanthracenes, Fragmentation mechanisms
Citation
Issues
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Created September 1, 1990, Updated January 27, 2020