1245912-81-5Relevant articles and documents
Hydrophobic N,N-diarylammonium pyrosulfates as dehydrative condensation catalysts under aqueous conditions
Sakakura, Akira,Koshikari, Yoshiki,Akakura, Matsujiro,Ishihara, Kazuaki
supporting information; experimental part, p. 30 - 33 (2012/02/14)
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.