Chirality Induction and Protonation-Induced Molecular Motions in Helical Molecular Strands
作者:Elena Kolomiets、Volker Berl、Jean-Marie Lehn
DOI:10.1002/chem.200601826
日期:2007.6.25
and its helical structure determined by X-ray crystallography. It was shown that the shorter analogue 6 displays induced circular dichroism and amplification of induced chirality upon dissolution in an optically active solvent, diethyl-L-tartrate. A novel class of helical foldamers was prepared, strands 14-16, based on two oligopyridine carboxamide segments linked through a L-tartaric acid derived
USE OF DYNAMIC MIXTURES FOR A CONTROLLED RELEASE OF FRAGRANCES
申请人:Lehn Jean-Marie
公开号:US20070141011A1
公开(公告)日:2007-06-21
The present invention relates to a delivery system in the form of a dynamic mixture obtained by reacting together, in the presence of water, at least one hydrazine derivative with at least one perfuming, flavoring, insect repellent or attractant, bactericide or fungicide aldehyde or ketone. The inventive mixture is capable of releasing in a controlled and prolonged manner the aldehyde or ketone in the surrounding environment. Furthermore, the present invention concerns also the use of these dynamic mixtures as perfuming ingredients as well as the perfuming compositions or perfumed articles that include such mixtures.
Use of dynamic mixtures for a controlled release of fragrances
申请人:Firmenich SA
公开号:US08124578B2
公开(公告)日:2012-02-28
The present invention relates to a delivery system in the form of a dynamic mixture obtained by reacting together, in the presence of water, at least one hydrazine derivative with at least one perfuming, flavoring, insect repellent or attractant, bactericide or fungicide aldehyde or ketone. The inventive mixture is capable of releasing in a controlled and prolonged manner the aldehyde or ketone in the surrounding environment. Furthermore, the present invention concerns also the use of these dynamic mixtures as perfuming ingredients as well as the perfuming compositions or perfumed articles that include such mixtures.
[EN] USE OF DYNAMIC MIXTURES FOR A CONTROLLED RELEASE OF FRAGRANCES<br/>[FR] UTILISATION DE MELANGES DYNAMIQUES POUR LIBERATION CONTROLEE DE FRAGRANCES
申请人:FIRMENICH & CIE
公开号:WO2006016248A1
公开(公告)日:2006-02-16
The present invention relates to a delivery system in the form of a dynamic mixture obtained by reacting together, in the presence of water, at least one hydrazine derivative with at least one perfuming, flavoring, insect repellent or attractant, bactericide and/or fungicide aldehyde or ketone. The invention's mixture is capable of releasing in a controlled and prolonged manner said aldehyde or ketone in the surrounding environment. Furthermore, the present invention concerns also the use of said dynamic mixtures as perfuming ingredients as well as the perfuming compositions or perfumed articles comprising the invention's mixtures.