Phenolysis and aminolysis of 4??nitrophenyl and 2, 4??dinitrophenyl S??methyl thiocarbonates in aqueous ethanol

EA Castro, ME Aliaga, M Cepeda…

文献索引：Castro, Enrique A.; Aliaga, Margarita E.; Cepeda, Marjorie; Santos, Jose G. International Journal of Chemical Kinetics, 2011 , vol. 43, # 7 p. 353 - 358

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被引用次数: 8

摘要

Abstract The reactions of S-methyl O-(4-nitrophenyl) thiocarbonate (1) and S-methyl O-(2, 4- dinitrophenyl) thiocarbonate (2) with a series of secondary alicyclic (SA) amines and phenols are subjected to a kinetic investigation. Under nucleophile excess, pseudo-first- order rate coefficients (k obs) are obtained. Plots of k obs against the free nucleophile concentration at constant pH are linear with slopes k N. The Brønsted plots (log k N vs. ...