[EN] PERFUMED CONSUMER PRODUCTS<br/>[FR] PRODUITS DE CONSOMMATION PARFUMÉS
申请人:FIRMENICH & CIE
公开号:WO2020260598A1
公开(公告)日:2020-12-30
The present invention relates to a perfumed consumer product comprising a pro-perfume compound and a trigger, wherein the pro-perfume compound and the trigger are physically separated from each other by comprising the pro-perfume compound or the trigger in a particle, the pro-perfume compound and the trigger in different particles or the pro-perfume compound and the trigger in different compartments as well as uses or methods of said perfumed consumer product to confer, enhance, improve or modify a perfuming effect of an article.
Amide/Iminium Zwitterionic Catalysts for (Trans)esterification: Application in Biodiesel Synthesis
作者:Ying-Pong Lam、Xinyan Wang、Fei Tan、Wing-Hin Ng、Ying-Lung Steve Tse、Ying-Yeung Yeung
DOI:10.1021/acscatal.9b01959
日期:2019.9.6
organocatalysts based on an amide anion/iminium cation charge pair has been developed. The zwitterions are easily prepared by reacting aziridines with aminopyridines. They are catalytically applicable to transesterifications and dehydrative esterifications. Mechanistic studies reveal that the amide anion and iminium cation work synergistically in activating the reaction partners, with the iminium cationic