[EN] PROCESS INVOLVING CROSS METATHESIS OF OLEFINS<br/>[FR] PROCÉDÉ METTANT EN JEU UNE MÉTATHÈSE CROISÉE D'OLÉFINES
申请人:GIVAUDAN SA
公开号:WO2015136093A1
公开(公告)日:2015-09-17
A method of forming a macrocyclic musk compound comprising the steps of:- i) cross-metathesizing a first olefin and a second olefin in the presence of a homogeneous transition metal catalyst comprising an alkylidene ligand, to form a statistical mixture of a hetero-dimer intermediate of said first and second terminal olefin, and homo-dimers ii) separating the hetero-dimer from the statistical mixture of hetero-and homo- dimers iii) and cyclizing the hetero-dimer intermediate to form the macrocyclic musk compound.
[EN] CYCLOHEXENE- AND CYCLOPROPANATED CYCLOHEXENE - DERIVATIVES AS FRAGRANCES<br/>[FR] DÉRIVÉS DE CYCLOHEXÈNE ET DE CYCLOHEXÈNE CYCLOPROPANÉ SERVANT DE PARFUMS
申请人:GIVAUDAN SA
公开号:WO2012020076A1
公开(公告)日:2012-02-16
1-(3/4-isobutyl-1/6-methylcyclohex-3-enyl)methanols and derivatives thereof having appreciable floral and hesperidic odor notes, their use as fragrance ingredient and perfumed products comprising them.
A fragrance precursor of 3-(4-isobutyl-2-methyl phenyl)propanal, comprising at least an enamine and/or an aminal as reaction product of 3-(4-isobutyl-2-methylphenyl)propanal (compound according to formula (I)) and a primary and/or secondary amine
useful as a perfume ingredient.
[EN] TRISUBSTITUTED FURANS SUITABLE FOR THE PREPARATION OF FRAGRANCE COMPOSITIONS<br/>[FR] FURANES TRISUBSTITUES CONVENANT A LA PREPARATION DE COMPOSITIONS DE PARFUM
申请人:GIVAUDAN SA
公开号:WO2005087756A1
公开(公告)日:2005-09-22
2,2-Disubstituted 5-methyl-2,5-dihydro- and 2,2-disubstituted 5-methyl-tetrahydrofurans of formula (I) wherein R1 and R2 have the same meaning as described in the specification are useful as odorants.
Trisubstituted Furans Suitable For The Preparation Of Fragrance Compositions
申请人:Kraft Philip
公开号:US20080039360A1
公开(公告)日:2008-02-14
2,2-Disubstituted 5-methyl-2,5-dihydro- and 2,2-disubstituted 5-methyl-tetrahydrofurans of formula (I) wherein R
1
and R
2
have the same meaning as described in the specification are useful as odorants.