Terpenoids. XXXVI. Iresin (Part 4). Isolation and Structure of Three Sesquiterpenes Related To Iresin
✍ Scribed by Pierre Crabbé; S. Burstein; Carl Djerassi
- Book ID
- 102774193
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 513 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0037-9646
No coin nor oath required. For personal study only.
✦ Synopsis
TERPENOIDS. XXXVI (I). IRESIN (PART 4) (2).
ISQLATION AND STRUCTURE OF THREE SESQUITERPENES RELATED TO IRESIN (3)
Pierre CRABBI! (4) S. BURSTEIN (5) and Carl DJERASSI (Detroit) Au cours de I'isolement de I'iresine (I) a partir de Iresine celosioides L, un examen minutieux des extraits a permis de deceler la presence de trois sesquiterpknes apparent&.
En plus de la dihydroiresine (VI) deja connue, la dihydroiresone (111) et I'isoiresine (VZII) ont Bt B isolks. Leur structure et stereochimie sont dktermides.
Le schema de cyclisation a partir d'un precurseur du type farn&ique souligne I'importance de ces sesquiterpknes du point de vue biogenetique.
In a series of papers from this laboratory 2> 6) it was demon- strated that the recently isolated (7) sesquiterpene iresin possesses the constitution and absolute configuration implicit in structure (I) (8). As pointed out earlier (6), this first demonstration of ( I )