Zeolite NaY‐Promoted Monocyclization of Epoxy Polyene Terpenes: A Unique Route for the Direct Synthesis of Incompletely Cyclized Naturally Occurring Terpenols
the brown algae Cystophora monoliformis. The optical rotation of achilleol A derived from the cyclization of (S)-2,3-epoxysqualene matches with that of the natural product, thus the absolute configuration of achilleol A was established as 1S,3R. From the mechanistic point of view, the NaY-promoted cyclization of 9,10-epoxygeranylacetone, selectively deuterium labelled at the C-10 methyl group, is >97%
Cyclic siloxanes that contain releasable active ingredients are described. The active ingredient can be an alcohol or enolizable carbonyl-containing compound such as a ketone, aldehyde, or ester. The product siloxanes are useful in a variety of personal and household care products where slow or controlled release of active ingredient is desired. A preferred embodiment utilizes substituents that when released as active ingredients are fragrant.
Cyclic siloxane compositions for the release of active ingredients
申请人:Perry J. Robert
公开号:US20050136022A1
公开(公告)日:2005-06-23
Cyclic siloxanes that contain releasable active ingredients are described. The active ingredient can be an alcohol or enolizable carbonyl-containing compound such as a ketone, aldehyde, or ester. The product siloxanes are useful in a variety of personal and household care products where slow or controlled release of active ingredient is desired. A preferred embodiment utilizes substituents that when released as active ingredients are fragrant.
A FRAGRANCE-DELIVERY COMPOSITION COMPRISING PERSULFATE ION-CROSSLINKED POLYVINYL ALCOHOL MICROCAPSULES AND METHOD OF USE THEREOF
申请人:APPVION, INC.
公开号:EP2907568A1
公开(公告)日:2015-08-19
An aqueous composition is provided having a pH of from about 2.0 to about 5.7 to about 12.8 and comprising boron or persulfate ion-crosslinked polyvinyl alcohol microcapsules. A method of delivering a fragrance to a substrate is further provided comprising applying to the substrate an aqueous composition comprised of fragrance-containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules, as well as a method of cleaning a substrate comprising applying to the substrate an aqueous composition comprised of fragrance-containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules together with at least one cleaning component.