Poly (ethylenimines) with alternative (alkylamino) pyridines as nucleophilic catalysts

EJ Delaney, LE Wood, IM Klotz

文献索引：Delaney, Edward J.; Wood, Leigh E.; Klotz, Irving M. Journal of the American Chemical Society, 1982 , vol. 104, # 3 p. 799 - 807

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被引用次数: 87

摘要

Abstract: A series of substituted aminopyridines have been synthesized and attached to poly (ethy1enimines). These modified polymers are markedly effective catalysts of the hydrolysis of nitrophenyl esters. At pH 7.3, the observed rates of hydrolysis of pnitrophenyl caproate are 50-2000-fold greater than for the isolated aminopyridine. Variations in effectiveness with differences in structure of the nucleophile and with its content on the polymer have also ...