82095-95-2Relevant academic research and scientific papers
AN UNUSUAL REARRANGEMENT OF EUDESMANE SKELETON
Tsankova, Elena
, p. 771 - 774 (1982)
The lactone 5 was found to be a co-product of the BF3 etherate induced cyclization of epoxyisogermacrone 2.The ketol 3 when treated with 100percent HCOOH afforded the lactone 5 while under the same conditions the ketol 4 gave the corresponding ester 6.A mechanism is suggested for the rearrangements.
Biotransformation of germacrane epoxides by Cichorium intybus
Piet, Dennis P.,Schrijvers, Robert,Franssen, Maurice C. R.,De Groot, Aede
, p. 6303 - 6314 (2007/10/02)
The biotransformation of germacrone-4,5-epoxide (2), germacrone-1,10-epoxide (3), isogermacrone-4,5-epoxide (5), germacrene B-4,5-epoxide (6) and germacrene B-1,10-epoxide (7) by a suspension of fresh chicory root (Cichorium intybus) was investigated. Enz
TRANSANNULAR CYCLISATION OF ISOGERMACRONE-EPOXIDES
Tsankova, Elena,Cerrini, Silvio,Lamba, Doriano
, p. 3397 - 3404 (2007/10/02)
Isogermacrone-epoxide 2 undergoes acid- and base-induced transannular cyclisation yielding the eudesmane derivatives 8 and 12, respectively, while on treatment with Lewis acid isogermacrone-diepoxide 3 is converted into 11.The structure and stereochemistr
