C27—C29 ring A monoaromatic steroids in Cretaceous black shales View Full Text


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Article Info

DATE

1981-12

AUTHORS

G. Hussler, B. Chappe, P. Wehrung, P. Albrecht

ABSTRACT

The structural elucidation of aromatic steroid hydrocarbons, which are widespread constituents of sediments and petroleums, has been attempted1; several series of triaromatic steroids have been identified2,3 and a structural hypothesis for the major series of the ubiquitous ring C monoaromatic steroids has been proposed2,4. Although many of these monoaromatic compounds are already present in ancient shales of a low degree of maturity, the stage at which they form and the mechanism of their aromatization are still unclear. Early aromatization of ring A of steroids has been suspected5,6, but never confirmed. Here we report the elucidation of the structures of two series of ring A monoaromatic steroids, 1 and 2, which occur in immature Cretaceous black shales from the Southern and Eastern North Atlantic, collected during the Deep Sea Drilling Project (DSDP). Compounds 1 and 2 were identified as major constituents of the aromatic fractions of these samples by comparison with authentic standards. More... »

PAGES

556-558

Journal

TITLE

Nature

ISSUE

5841

VOLUME

294

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/294556a0

DOI

http://dx.doi.org/10.1038/294556a0

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1035081776


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