Mass-spectra of dimethylbicyclo64.4.09decane stereoisomers (2,3-; 2,4-; 2,8- and 2,9-dimethylbicyclo64.4.09decanes)

Autor: E.Kh. Kurashova, P.I. Sanin, I.M. Lukashenko, Ye.S. Brodskii, I.A. Musayev
Rok vydání: 1977
Předmět:
Zdroj: Petroleum Chemistry U.S.S.R.. 17:77-84
ISSN: 0031-6458
DOI: 10.1016/0031-6458(77)90056-9
Popis: 1. 1. A study was made of mass-spectra of 29 stereisomers of 2,3-, 2,4-, 2,8- and 2,9-dimethylbicyclo[44.4.0]decanes. 2. 2. Peak intensities of M + and (MCH 3 ) + normally decrease with a reduction of the relative stability of stereoisomers, while peak intensities of ions formed during splitting of rings increase. Splitting of bonds at tertiary carbon atoms with a methyl group increases the probability of migration or separation of the hydrogen atom from the ion formed. 3. 3. It is assumed that molecular and some fragmented ions, particularly (MCH 3 ) + , at least partly retain stereoisomer structural features.
Databáze: OpenAIRE