Resume . Le 6-pyronkne, un synthon terpCnique nouvellement accessible ii partir du myrckne, compost5 dCveloppC industriellement, a CtC diversement fonctionnalisC. I1 constitue une matiere premiere 1ntCreswnte pour accCder i des ~ntermkdiaires actuellement utilisCs dans la synthitse de parfums et de rCtlno'ide5. De plus, de nouveaux composCs terpCniques possCdant un squelette cyclogCranyle particulier ant Ct C prCparCs.Mots clis : terpitnes, pyronenes, dCrivCs cyclogCranyles, parfums.Abstract: &Pyronene, a terpenic synthon recently made industrially available from myrcene, has been characterized. It is an excellent raw material for the preparation of numerous intermediates used in the synthesis of perfumes and retinoids. Furthermore, new terpenic compounds including the cyclogeranyl skeleton have been prepared.

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δ‐Pyronene (1), a readily available terpenic synthon, is an excellent raw material for the preparation of numerous terpenic intermediates. Original retinoid analogs such as “iso”‐retinyl acetate (5), “iso”‐retinal (6) and ethyl “iso”‐retinoate (7), in which the cyclogeranyl moiety is functionalized in an unusual position, were prepared from δ‐pyronene.

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