76866-91-6Relevant articles and documents
Synthesis of Biological Markers in Fossil Fuels. 4. C27, C28, and C29 13β,17α(H)-Diasteranes
Bauer, Phillip E.,Nelson, David A.,Watt, David S.,Reibenspies, Joseph H.,Anderson, Oren P.,et al.
, p. 5460 - 5464 (2007/10/02)
The rearrangement of 5-cholestene to (20ξ)-13(17)-diacholestenes, separation of C-20 epimers, and further reduction provided an unambiguous synthesis of the biomarkers (20R)- and (20S)-13β,17α(H)-diacholestanes.Repetition of this sequence using (24R)-5-campestene or (24R)-5-stigmastene provided the analogous C28 and C29 diasteranes.