ChemInform Abstract: EQUILIBRIUM COMPOSITION AND PROPERTIES OF EPIMERS OF REARRANGED CHOLESTANE

Abstract

Die Hydrierung des bei einer sauren Umlagerung von As‐Cholesten (I) entstehenden Dimethyldinorcholestens (II) an Raney‐Ni liefert ein Gemisch von 12 epimeren Kohlenwasserstoffen (Massenspektren) der Struktur (III).

Petroleum Hydrocarbons

“…This is especially true in view of the possibility of liquid chromatographic separation of 20S and 20R epimers of diasteranes I on aluminium oxide, as was proven in the publication of Kayukova et al (1980a). This is especially true in view of the possibility of liquid chromatographic separation of 20S and 20R epimers of diasteranes I on aluminium oxide, as was proven in the publication of Kayukova et al (1980a).…”

“…The properties of 4-methylsteranes are comprehensively discussed in the publication of Kayukova et al (1980a). Key fragment ions are m/z 231 and 232.…”

“…The equilibrium of the epimer has been studied by Kayukova et al (1980a), while their configuration was established by Seifert and Moldowan (1979a) and Pekhk et al (1982). All epimers discussed below have trans-junctions of the AlB and B/C rings.…”