Perfuming ingredients of woody, fruity odor

Details Perfuming ingredients of woody, fruity odor Perfuming ingredients of woody, fruity odor

1998-05-28

1999-12-28

Brouillette, D. Gabrielle

Perfume compositions

Perfume compositions

Ring containing active ingredient

424 701, 510101, A61K 746, A61K 706, C11D 350

Patent

active

060081864

ABSTRACT:
The present invention relates to the use in perfumery of compounds of the general formulae ##STR1## in which R.sup.1 and R.sup.2 are identical or different and represent each a methyl or ethyl group, R.sup.3 represents hydrogen or an alkyl group from C.sub.1 to C.sub.4, linear or branched, and R.sup.4 represents hydrogen, an alkyl group from C.sub.1 to C.sub.4, linear or branched, or an acyl group of formula R.sup.5 C(O)--, R.sup.5 being hydrogen or an alkyl group from C.sub.1 to C.sub.4, linear or branched. The novel odoriferous character of these compounds is the combination of woody with fruity notes. Also described is a synthesis for the preparation of the compounds of formula (I) starting from the compounds of formula (II).

REFERENCES:
patent: 2803662 (1957-08-01), Stoll
patent: 3929676 (1975-12-01), Chappell et al.
patent: 3965189 (1976-06-01), Schulte-Elte et al.
patent: 3966819 (1976-06-01), Schulte-Elte et al.
patent: 4218347 (1980-08-01), Naf et al.
patent: 4288349 (1981-09-01), Boelns et al.
patent: 4302363 (1981-11-01), Bruns et al.
M. Colombo et al., "Manganese (III) Acetate and Lewis Acid Mediated Cyclization of Olefinic .beta.-Keto Esters: A Comparative Study", Tetrahedron 46:4149-4154 (1990).
J. White et al., "Synthesis of Dihydropallescensin D Via Manganesee(III) Mediated Cyclization of an Olefinic .beta.-Keto Ester", Tetrahedron 31:59-62 (1990).

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