82095-96-3Relevant academic research and scientific papers
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
AN UNUSUAL REARRANGEMENT OF EUDESMANE SKELETON
Tsankova, Elena
, p. 771 - 774 (2007/10/02)
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.
