SYNTHESIS OF TRIAROMATIC STEROID HYDROCARBONS METHYLATED AT POSITION-2, POSITION-3 OR POSITION-6 - MOLECULAR FOSSILS OF YET UNKNOWN BIOLOGICAL ORIGIN

Citation
E. Lichtfouse et P. Albrecht, SYNTHESIS OF TRIAROMATIC STEROID HYDROCARBONS METHYLATED AT POSITION-2, POSITION-3 OR POSITION-6 - MOLECULAR FOSSILS OF YET UNKNOWN BIOLOGICAL ORIGIN, Tetrahedron, 50(6), 1994, pp. 1731-1744
Citations number
40
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404020
Volume
50
Issue
6
Year of publication
1994
Pages
1731 - 1744
Database
ISI
SICI code
0040-4020(1994)50:6<1731:SOTSHM>2.0.ZU;2-X
Abstract
C-21-29 triaromatic steroid hydrocarbons bearing a methyl group at unu sual positions 2, 3 or 6 have been synthesized from pregnenolone, chol esterol or stigmasterol via stera-3,5-dienes. Their occurrence in vari ous sedimentary rocks and petroleums suggests the presence of yet unkn own biological precursors.