65819-30-9Relevant academic research and scientific papers
SYNTHESE DE CETONES SPIRANNIQUES TRICYCLIQUES DERIVEES DE PRODUITS NATURELS
Berrier, Christian,Jacquesy, Jean-Claude,Renoux, Alain
, p. 212 - 218 (2007/10/02)
In SbF5-HF compound 10a is unreactive whereas esters 10b and 10c cyclize to enones 18 (b or c) and 19 (b or c).Protonation of the esters groups prevents the corresponding aromatic ring protonation and deactivation which is observed with phenol 10a.Spiroke
TERPENOIDS AND BIBENZYLS FROM SOME NEW ZEALAND LIVERWORTS
Asakawa, Yoshinori,Campbell, Ella O.
, p. 2663 - 2668 (2007/10/02)
Four liverworts, Marchantia berteroana, M. foliacea, Plagiochila stephensoniana and Porella elegantula collected in New Zealand were chemically investigated.M. berteroana contains cuparene and (-)-2-hydroxycuparene as the major components. γ-Cadinene is the major component of M. foliacea. 4-Hydroxy-3'-methoxybibenzyl is a chemical marker for P. stephensoniana which belongs to the non-pungent type of Plagiochila species.P. elegantula synthesizes perrottetianal and belongs to the non-pungent type of Porella species. - Key Word Index: Marchantia berteroana; M. foliacea; Plagiochila stephensoniana; Porella elegantula; Marchantiales; Jungermanniales; Hepaticae; terpenoids; 2-hydroxycuparene; perrottetianal; bibenzyls; 4-hydroxy-3'-methoxybibenzyl; chemosystematics.
