[EN] HYDROGENATION OF ESTERS OR CARBONYL GROUPS WITH TETRADENTATE AMINO/IMINO-THIOETHER BASED RUTHENIUM COMPLEXES<br/>[FR] HYDROGÉNATION DE GROUPES ESTERS OU CARBONYLES AVEC DES COMPLEXES DU RUTHÉNIUM À BASE D'AMINO/IMINO-THIOÉTHER TÉTRADENTATE
申请人:FIRMENICH & CIE
公开号:WO2012084810A1
公开(公告)日:2012-06-28
The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of specific ruthenium catalysts, or pre-catalysts, in hydrogenation processes for the reduction of ketones and/or aldehydes into the corresponding alcohol respectively. Said catalysts are ruthenium complexes comprising a tetradentate ligand (L4) coordinating the ruthenium with: - two nitrogen atoms, each in the form of a primary or secondary amine (i.e. a NH2 or NH group) or N-alkyl imine functional groups (i.e. a C=N group), and - two sulfur atoms, each in the form of thioether functional groups.
The present invention relates to compounds of formula (I) as properfume compounds. In particular, the present invention relates to a method to release a compound being a carbonyl of formula (II), a formate ester of formula (III) and/or an alcohol of formula (IV), by exposing the compound of formula (I) to an environment wherein it is oxidized. Moreover, the present invention relates to a perfuming composition and a perfumed consumer product comprising at least one compound of formula (I).
The present invention relates to core-shell microcapsules comprising photolabile 2-oxoacetate pro-fragrance molecules capable of liberating an active molecule such as, for example, an aldehyde or ketone upon exposure to light. The present invention concerns also the use of said microcapsules in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's microcapsules to provide a prolonged release of fragrant aldehydes and/or ketones.
Dérivés de l'aldéhyde campholénique et leur utilisation en parfumerie
申请人:FIRMENICH SA
公开号:EP0694520A1
公开(公告)日:1996-01-31
Les composés de formule
dans laquelle R représente l'hydrogène ou un radical méthyle et X représente un groupe - CHO ou - C ≡ N, sont utiles pour la préparation de compositions parfumantes ou d'articles parfumés, auxquels ils impartissent des notes odorantes santalées pouvant être accompagnées de caractères olfactifs de type ozoné et marin, qui leur confèrent un aspect "transparent".
Les aldéhydes de formule (I) sont également utiles pour la préparation des alcools et nitriles odorants correspondants.
分子式为
其中 R 代表氢或甲基基团,X 代表 - CHO 或 - C ≡ N 基团,这些化合物可用于制备香水组合物或香水制品,它们可赋予这些组合物或香水制品檀香般的气味,并可能伴有臭氧和海洋类型的嗅觉特征,使其具有 "透明 "外观。
式(I)的醛类还可用于制备相应的芳香醇和腈。