A [3+2] nitrile oxide intermolecular cycloaddition approach to 4,5-dihydro-3(2H)-furanone and 3(2H)-furanone ring systems: application to the formal synthesis of (±)-ascofuranone and geiparvarin was written by Tabrizi, M. Aghazade;Baraldi, P. G.;Guarneri, M.;Manfredini, S.;Pollini, G. P.;Simoni, D.. And the article was included in Tetrahedron Letters in 1991.Category: esters-buliding-blocks The following contents are mentioned in the article:
A unified approach to both 4,5-dihydro-3(2H)-furanone and 3(2H)-furanone ring systems centered on a [3+2] nitrile oxide cycloaddition for the C-C bond forming steps has been successfully applied to the synthesis of (±)-ascofuranone and geiparvarin from common intermediates. This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5Category: esters-buliding-blocks).
(2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 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.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics