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Quaternary pyridinium ketoximes-New efficient micellar hydrolytic catalysts

R Cibulka, F Hampl, H Kotoučová…

文献索引:Cibulka, Radek; Hampl, Frantisek; Kotoucova, Hana; Mazac, Jiri; Liska, Frantisek Collection of Czechoslovak Chemical Communications, 2000 , vol. 65, # 2 p. 227 - 242

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被引用次数: 19

摘要

Abstract A series of quaternized alkyl pyridyl ketoximes was synthesized and tested as micellar hydrolytic catalysts. 2-And 4-[1-(hydroxyimino) tridecyl]-1-methylpyridinium bromides were surprisingly efficient, most probably due to the location of their nucleophilic hydroxyimino group below the micellar surface. Absorbance of the reaction mixture vs time plots exhibited remarkable positive deviation from the first-order kinetics when hydrolysis ...