Scents having a fresh odor are usually very volatile, and therefore have a low yield in typical applications such as washing or cleaning processes. They must therefore be used in relatively large quantities so that commensurate effects can be achieved. The invention describes specific ketones as photolabile scent storage substances which enable greatly improved persistence of the scent impression, in particular with a fresh odor, in typical applications. Corresponding washing or cleaning agents and air freshening agents, and a method for scenting surfaces, are also described.
Scents having a fresh odor are usually very volatile, and therefore have a low yield in typical applications such as washing or cleaning processes. They must therefore be used in relatively large quantities so that commensurate effects can be achieved. The invention describes specific ketones as photolabile scent storage substances which enable greatly improved persistence of the scent impression, in particular with a fresh odor, in typical applications. Corresponding washing or cleaning agents and air freshening agents, and a method for scenting surfaces, are also described.
[DE] SYNTHESE VON KETONEN FREISETZENDEN PHOTOCAGES<br/>[EN] SYNTHESIS OF KETONE RELEASING PHOTO-CAGES<br/>[FR] SYNTHÈSE DE PHOTO-CAGES LIBÉRANT DES CÉTONES
申请人:HENKEL AG & CO KGAA
公开号:WO2017071871A1
公开(公告)日:2017-05-04
Die vorliegende Erfindung betrifft die Herstellung spezieller Ketone der Formeln (I) und (VI), wie hierin definiert, die als photolabile Duftspeicherstoffe fungieren.
Photocaged Hydrocarbons, Aldehydes, Ketones, Enones, and Carboxylic Acids and Esters that Release by the Norrish II Cleavage Protocol and Beyond: Controlled Photoinduced Fragrance Release
volatile organic molecules are described: terpene hydrocarbons, aldehydes, ketones, Michael-type α,β-unsaturated enones, and carboxylicacids and esters. These caged molecules are released by photoexcitation via carbonyl-directed hydrogen-transfer processes and subsequent C–C bond cleavage (Norrish Type II) or by didenitrogenation of diazirines. Five families of caged fragrance compounds that allow the