[EN] IMPROVED FRESHNESS IMPARTING COMPOSITIONS<br/>[FR] COMPOSITIONS CONFÉRANT UNE FRAÎCHEUR AMÉLIORÉE
申请人:[en]FIRMENICH SA
公开号:WO2022084437A1
公开(公告)日:2022-04-28
The present invention relates to a method of conferring, improving, enhancing or modifying the freshness of a perfuming composition, the method comprising the step of adding at least one pro-perfume compound to the perfuming composition. The present invention further concerns a perfumed composition comprising at least one pro-perfume compound and at least one perfuming composition, as well as a perfumed consumer product comprising said perfumed composition. The present invention is further directed to the use of least one pro-perfume compound to confer, improve, enhance or modify the freshness of a perfuming composition.
Highly Selective Rhodium Catalyzed 1,4‐Hydrogenation of Conjugated Dienals
作者:Christophe M. Saudan、Aurélien Berrocosa、Julie Quintaine、Stéphanie Spoehrle、Laurent Maggi、Hervé Mosimann、Lionel Saudan
DOI:10.1002/cctc.202200671
日期:2022.9.20
Phosphane Ligands: Large bite angle made the difference in directing group free site selective hydrogenation of dienals into γ,δ-unsaturated aldehydes a formal Claisen rearrangement product. Low loading of rhodium catalyst, high regio- and chemoselectivity, high yield and mild reaction condition of temperature (rt to 60 °C) and hydrogen pressure (10 to 50 bar) characterized this reaction.