[EN] ESTERS AS PERFUMING INGREDIENTS<br/>[FR] ESTERS EN TANT QU'INGRÉDIENTS DE PARFUM
申请人:FIRMENICH & CIE
公开号:WO2011055251A1
公开(公告)日:2011-05-12
The present invention relates to some perfuming ingredients which are esters of formula (I) wherein R1 and R2 represent each a hydrogen atom or a methyl or ethyl group; and R3 represents a C5-C8 group of formula satured or unsatured linear, branched or cyclic group.
The present invention relates to some perfuming ingredients which are esters of formula (I) wherein R
1
and R
2
represent each a hydrogen atom or a methyl or ethyl group; and R
3
represents a C
5
-C
8
group of formula satured or unsatured linear, branched or cyclic group.
The Pd(cod)Cl2-catalyzed alkoxycarbonylation of conjugateddienes to β,γ-unsaturated esters was approached by both intramolecular phosphinesulfonate L1 and intermolecular PPh3/PTSA in this study. However, the poor solubility of the Pd/L1 complex and the labile monodentate Pd/PPh3 structure restricts the system efficiency, especially for the scale-up application. By contrast, the stable and well-soluble