546-99-6Relevant academic research and scientific papers
Bromine, N-bromosuccinimide and sulphur induced isomerizations in the hopane series
Bisseret, Philippe,Rohmer, Michel
, p. 7445 - 7448 (2007/10/02)
When reacted with bromine, N-bromosuccinimide or molten sulphur, triterpenoids of the 17β(H),21β(H)-hopane series were converted into their 17α(H),21β(H) and 17β(H),21α(H) isomers of geochemical significance.
Acid-Induced Rearrangement of Triterpenoid Hydrocarbons Belonging to the Hopane and Migrated Hopane Series
Ageta, Hiroyuki,Shiojima, Kenji,Arai, Yoko
, p. 2705 - 2716 (2007/10/02)
The acid-catalyzed rearrangement of triterpenoid monoenes belonging to the hopane and migrated hopane series with sulfuric acid and boron trifluoride etherate was investigated.By selecting the reaction conditions, a variety of the monoenes of these series, including three new compounds, 9βH-fern-7-ene (3c), 8βH-fern-9(11)-ene (4b), and adian-5(10)-ene (5b), were obtained.For comparison, oleanenes and migrated oleanenes were also subjected to the same reaction.Keywords--acid-induced rearrangement; triterpenoid hydrocarbon; hopane, migrated hopane; 9βH-fern-7-ene; 8βH-fern-9(11)-ene; adian-5(10)-ene; sulfuric acid; boron trifluoride
