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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)

Anzor I. Mikaia, 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

Keywords

Mass spectra, Electron ionization, 10-sila-2-azaanthracenes, Fragmentation mechanisms

Citation

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 April 24, 2024)
Created September 1, 1990, Updated January 27, 2020