Controlled Light-Induced Release of Volatile Aldehydes and Ketones by Photofragmentation of 2-Oxo-(2-phenyl)acetates
摘要:
通过在不同溶剂中照射前体物质以及在典型的织物柔顺剂应用中照射棉花,评估了光致控制释放香味的方法,该方法通过Norrish Type II光解裂释放光敏感2-氧代-(2-苯基)乙酸酯。所需的光氧化在水基系统中表现出高效工作,并且能够耐受氧气的存在。除了所需的醛或酮之外,还会形成一定量的醇,这归因于光化学释放的羰基化合物进一步反应,而不是在水性环境中的酯水解。
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).
[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] PERFUME SYSTEM FOR PERFUMED CONSUMER PRODUCT<br/>[FR] SYSTÈME DE PARFUM POUR PRODUIT PARFUMÉ DE CONSOMMATION
申请人:FIRMENICH & CIE
公开号:WO2021214205A1
公开(公告)日:2021-10-28
The present invention relates to a perfume system comprising a core-shell microcapsule A, optionally, a core-shell microcapsule B, and optionally, a free perfume oil, wherein the core of the core-shell microcapsule A and/or the free perfume oil comprises a 2-oxoacetate derivative of formula (I) as well as a perfumed consumer product comprising the same and methods and uses of the same for enhancing, conferring, increasing and/or modifying the fragrance properties and/or the fragrance intensity of perfumed consumer products.
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.
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.