Novel 23,28-bisnorlupanes in Tertiary sediments. Widespread occurrence of nuclear demethylated triterpanes

Details Novel 23,28-bisnorlupanes in Tertiary sediments. Widespread occurrence of nuclear demethylated triterpanes Novel 23,28-bisnorlupanes in Tertiary sediments. Widespread occurrence of nuclear demethylated triterpanes

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.2501r&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 46, Issue 12, pp.2501-2509

Computer Science

2

Scientific paper

A pair of isomeric C 28 -bisnorlupanes was detected in high abundance in the saturated hydrocarbon fractions of Tertiary sediments from West Greenland and the Gulf of Suez. The compounds were isolated by preparative gas chromatography and the isomers separated by liquid chromatography. On the basis of mass spectrometric and nuclear magnetic resonance data the structures were assigned to be 17 (H)- and 17ß(H)-23,28-bisnorlupane, respectively. The significance of nuclear demethylated triterpanes is discussed in terms of their generally high abundance, their uneven distribution within a given facies, and their worldwide occurrence.

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