Enantiospecific synthesis of a novel rearranged eunicellane diterpenoid by SmI2-mediated cyclization was written by Schoettner, Elisabeth;Jones, Peter G.;Lindel, Thomas. And the article was included in Synthesis in 2009.Reference of 37905-02-5 The following contents are mentioned in the article:
Aiming at the assembly of marine-derived diterpenoids, the synthesis and cyclization of α-geranylated carvones was investigated. 3-Hydroxyalkylation of side-chain hydrogenated carvone with geraniol-derived aldehydes gave access to diterpenoid allyl phosphates, e.g. I. It was shown that retro-aldol fragmentation of ring-hydrogenated 3-(hydroxyalkyl)carvones is surprisingly facile, because the preferred conformation resembles a Zimmerman-Traxler type transition-state. The hitherto unknown rearranged eunicellane skeleton II can be obtained in one step by treatment of the α,β-unsaturated diterpenoid I with samarium diiodide generated in situ in THF. NOESY-based structure anal. revealed the presence of an ansa bridge across a twist-boat six-membered ring. This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5Reference of 37905-02-5).
(2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Reference of 37905-02-5
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics