Poly(aspartic acid) derived co-polymers for a controlled release of perfuming ingredients
申请人:Firmenich SA
公开号:US10323127B2
公开(公告)日:2019-06-18
The present invention relates to the field of perfumery. More particularly, it concerns co-polymers, derived from aspartic acid and comprising at least one α- or β-aspartic acid derivative capable of liberating an active molecule such as, for example, an α,β-unsaturated ketone or aldehyde. The present invention concerns also the use of polymers or co-polymers in perfumery as part of a perfuming or malodor counteracting composition, as well as the perfuming compositions or perfumed articles comprising the invention's compounds.
POLY(ASPARTIC ACID) DERIVED CO-POLYMERS FOR A CONTROLLED RELEASE OF PERFUMING INGREDIENTS
申请人:Firmenich SA
公开号:US20180016396A1
公开(公告)日:2018-01-18
The present invention relates to the field of perfumery. More particularly, it concerns co-polymers, derived from aspartic acid and comprising at least one α- or β-aspartic acid derivative capable of liberating an active molecule such as, for example, an α,β-unsaturated ketone or aldehyde. The present invention concerns also the use of polymers or co-polymers in perfumery as part of a perfuming or malodor counteracting composition, as well as the perfuming compositions or perfumed articles comprising the invention's compounds.
Asymmetric induction ? to nitrogen in pyrrolidines and piperidines via radical chemistry
作者:Richard A. Ewin、Keith Jones、Christopher G. Newton
DOI:10.1039/p19960001107
日期:——
Attempts to control the stereochemistry of radical reactions at the 2-position of pyrrolidines and piperidines carrying chiral auxiliaries on the nitrogen are presented.