[EN] FRAGRANCE AND FLAVOR MATERIALS FROM 1-(2-HYDROXY-4-METHYLCYCLOHEXYL)-ETHANONE<br/>[FR] SUBSTANCES PARFUMANTES ET AROMATIQUES À PARTIR DE 1-(2-HYDROXY-4-MÉTHYLCYCLOHEXYL)-ÉTHANONE
申请人:TAKASAGO INT CORPORATION USA
公开号:WO2019173772A1
公开(公告)日:2019-09-12
The present disclosure is directed to l-(2-hydroxy-4-methylcyclohexyl)-ethanone derivatives having unique and desired flavor and/or fragrance characteristics, as well as the synthesis and application of the derivatives. The compounds of the present disclosure can be employed alone or incorporated as fragrance or flavor ingredients to modify or enhance already existing fragrance compositions, solvents, media, and the like.
[EN] FRAGRANCE AND FLAVOR MATERIALS DERIVED FROM 1-(4-METHYLCYCLOHEX-1-EN-1-YL)ETHAN-1-ONE<br/>[FR] SUBSTANCES PARFUMANTES ET AROMATIQUES DÉRIVÉES DE 1-(4-MÉTHYLCYCLOHEX-1-ÉN-1-YL) ETHAN-1-ONE
申请人:TAKASAGO INT CORPORATION USA
公开号:WO2019173776A1
公开(公告)日:2019-09-12
The present disclosure is directed to 1-(4-methyl cyclohex-1-en-1-yl)ethan-1-one derivatives having unique and desired flavor and/or fragrance characteristics, as well as the synthesis and application of the derivatives. The compounds of the present disclosure can be employed alone or incorporated as fragrance or flavor ingredients to modify or enhance already existing fragrance compositions, solvents, media, and the like.
An (E)-(R)-2-alkyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)-2-buten-1-ol represented by formula (I): ##STR1## wherein R represents an alkyl group having 1 to 3 carbon atoms, and a process for preparing the same comprising hydrogenating a corresponding (E)-(R)-2-alkyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)-2-buten-1-al in the presence of a ruthenium-phosphine complex as a catalyst, a base comprising an alkali metal or an alkaline earth metal, and an amine. The compound (I) has an excellent sandalwood oil odor.
The invention relates to compounds of the general formula
in which R1 to R7 are, independently, H, methyl or ethyl, R8+R9 represent methylene (-CH2-) or a single bond, or R1+R2 represent -(CH2)n-, with n being 3 or 4, or R3+R5 or R5+R7 represent methylene or a single bond; and the presence of at least one cyclopropane ring in the molecule is compulsory and the side chain can be saturated or contains one double bond in position α,β or β,γ,
a process for the manufacture of these compounds, compounds used to perform the process and the use of these compounds as an odorant or as an ingredient of an odorant composition.
(E)-(R)-2-Alkyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)-2-buten-1-ol, process for preparing the same, and use thereof in perfume compositions
申请人:Takasago International Corporation
公开号:EP0829463A2
公开(公告)日:1998-03-18
An (E)-(R)-2-alkyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)-2-buten-1-ol represented by formula (I):
wherein R represents an alkyl group having 1 to 3 carbon atoms,
and a process for preparing the same comprising hydrogenating a corresponding (E)-(R)-2-alkyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)-2-buten-1-al in the presence of a ruthenium-phosphine complex as a catalyst, a base comprising an alkali metal or an alkaline earth metal, and an amine. The compound (I) has an excellent sandalwood oil odor.