Browsing by Author "Castro, Enrique A."

Now showing items 1-3 of 3

    • Experimental and theoretical study on the substitution reactions of aryl 2,4-dinitrophenyl carbonates with ... 
      Castro, Enrique A.; Campodónico, Paola R.; Contreras Ramos, Renato; Fuentealba Rosas, Patricio; Santos, José G.; Leis, J. Ramón; García Río, Luis; Sáez, José A.; Domingo, Luis R. (PERGAMON-ELSEVIER SCIENCE LTD, 2006-03-13)
      The reactions of quinuclidines with phenyl, 4-methylphenyl, and 4-chlorophenyl 2,4-dinitrophenyl carbonates are kinetically evaluated in aqueous solution. The Bronsted-type plots (log k(N) vs pK(a) of quinuclidinium ions) ...
    • Hydrogen Bond Contribution to Preferential Solvation in SNAr Reactions 
      Ormazábal Toledo, Rodrigo; Santos, José G.; Ríos, Paulina; Castro, Enrique A.; Campodónico, Paola R.; Contreras Ramos, Renato (American Chemical Society, 2013)
      Preferential solvation in aromatic nucleophilic substitution reactions is discussed using a kinetic study complemented with quantum chemical calculations. The model system is the reaction of a series of secondary ...
    • Reactivity of benzohydrazide derivatives towards acetylation reaction. Experimental and theoretical studies 
      Campodónico, Paola R.; Aliaga, Margarita E.; Santos, José G.; Castro, Enrique A.; Contreras Ramos, Renato (Elsevier, 2010)
      We herein report an experimental and theoretical study on the acetylation reaction of benzohydrazide derivatives towards p-nitrophenyl acetate (NPA). The kinetic data are consistent with a stepwise mechanism with the ...