Collect. Czech. Chem. Commun. 1979, 44, 429-438

Mass spectra of some 5-methyl-19-nor-5β-cholest-9-enes

František Turečeka and Pavel Kočovskýb

a The J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 121 38 Prague 2
b Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6


The mass spectrometric behavior of isomeric ketones I-V and alcohols VI-X of Westphalen type is described. The differences in fragmentation patterns of these compounds are discussed in dependence on the position and the configuration of the substituent.