Conjugate addition of unactivated thiols to α,β-unsaturated ketones catalyzed by a bifunctional rhenium(V)–oxo complex
作者:Allan Peng、Ross Rosenblatt、Kristine Nolin
DOI:10.1016/j.tetlet.2012.03.075
日期:2012.5
found to be an efficient bifunctional catalyst for the 1,4-addition of thiols to α,β-unsaturatedketones. The addition of thiophenol derivatives and alkyl thiols proceeds under mild reaction conditions without pre-activation of the thiol or exogenous base. Reactions of aryl, alkyl, and cyclic enones produce the corresponding β-sulfanyl ketones in good to excellent yield.
[EN] THIOETHER PRECURSORS FOR FRAGRANT KETONES AND ALDEHYDES<br/>[FR] PRÉCURSEURS DE THIOÉTHER POUR CÉTONES ET ALDÉHYDES ODORANTS
申请人:GIVAUDAN SA
公开号:WO2019166315A1
公开(公告)日:2019-09-06
The application relates to fragrance ingredients of the general formula (I) which comprise a thioether moiety. Claimed is their use as a precursor for generating fragrant thiols and/or aldehydes or ketones, a composition of matter comprising a compound of formula (I), and a consumer product comprising a compound of formula (I).
[EN] THIOETHER PRECURSORS FOR FRAGRANT KETONES AND ALDEHYDES<br/>[FR] PRÉCURSEURS THIOÉTHERS POUR CÉTONES ET ALDÉHYDES ODORANTS
申请人:GIVAUDAN SA
公开号:WO2019166314A1
公开(公告)日:2019-09-06
Disclosed is a compound of formula (I), a fragrance ingredient comprising a compound of formula (I), the use of a compound of formula (I) and a method for producing a compound of formula (I).
[EN] PRO-PERFUME COMPOSITIONS<br/>[FR] COMPOSITIONS DE PROPARFUM
申请人:FIRMENICH & CIE
公开号:WO2021123144A1
公开(公告)日:2021-06-24
The present invention relates to a perfuming composition comprising at least two properfume compounds selected from the group consisting of a pro-perfume compound releasing a perfume compound upon exposure to light, a pro-perfume compound releasing a perfume compound upon exposure to air/oxygen, a pro-perfume compound releasing a perfume compound upon exposure to heat, a pro-perfume compound releasing a perfume compound upon exposure to moisture and a pro-perfume compound releasing a perfume compound upon exposure to enzymes. The present invention further concerns a perfumed consumer product comprising the inventive perfuming composition, as well as the use of the inventive perfuming composition for improving, enhancing, conferring and/or modifying the fragrance impression and/or fragrance intensity of a consumer product.
[EN] COMPOUNDS FOR PROVIDING A LONG-LASTING FLORAL AND FRUITY ODOR<br/>[FR] COMPOSÉS DESTINÉS À FOURNIR UNE ODEUR FLORALE ET FRUITÉE DE LONGUE DURÉE
申请人:FIRMENICH & CIE
公开号:WO2021122997A1
公开(公告)日:2021-06-24
The present invention relates to the field of perfumery. The present invention relates to compounds of formula (I) that are able to provide a long-lasting or substantive odor, in particular floral and/or fruity odor, to the environment. Moreover, the present invention relates to a method of imparting a long-lasting odor, in particular a fresh green, floral and/or fruity odor, to surfaces, such as hard surfaces, fabric, skin or hair. Furthermore, the present invention relates to the use of said compounds in perfumery, as well as the perfuming compositions or perfumed articles comprising the invention's compounds.