Hydrophobic N,N-Diarylammonium Pyrosulfates as Dehydrative Condensation Catalysts under Aqueous Conditions
摘要:
Oil-soluble N,N-diarylammonium pyrosulfates as nonsurfactant-type catalysts for the dehydrative ester condensation under aqueous conditions are described. Preheat treatment of dibasic sulfuric acid with bulky N,N-diarylamines generates water-tolerant salts of pyrosulfuric acid as active catalyst species. The present catalysts in water can also widely be applied to unusual selective esterifications and dehydrative glycosylation.
[EN] USE OF AROMA GLYCOSIDES AS FLAVOR OR FRAGRANCE INGREDIENT<br/>[FR] UTILISATION DE GLYCOSIDES D'AROME EN TANT QU'INGREDIENT DE GOUT OU DE PARFUM
申请人:POALIS AS
公开号:WO2006087370A1
公开(公告)日:2006-08-24
[EN] Use of aroma glycosides as flavor or fragrance ingredients in food, feed, cleaning liquid or a washing powder products. [FR] Cette invention concerne l'utilisation de glycosides d'arôme en tant qu'ingrédients de goût ou de parfum pour de la nourriture humaine ou animale, des liquides de nettoyage ou des lessives en poudre.
Hydrophobic <i>N,N-</i>Diarylammonium Pyrosulfates as Dehydrative Condensation Catalysts under Aqueous Conditions
Oil-soluble N,N-diarylammonium pyrosulfates as nonsurfactant-type catalysts for the dehydrative ester condensation under aqueous conditions are described. Preheat treatment of dibasic sulfuric acid with bulky N,N-diarylamines generates water-tolerant salts of pyrosulfuric acid as active catalyst species. The present catalysts in water can also widely be applied to unusual selective esterifications and dehydrative glycosylation.