Kinetics of the reaction of N,N'-dioctylurea with n-octanol in the presence of tin dibutyldilaurinate

The kinetic study of the reaction of symmetrical dioctylurea with n-octanol in the presence of tin dibutyldilaurinate has shown that the dependence of the reaction rate on the catalyst concentration is nonlinear. The apparent rate constants of the "associative" pathway of alcoholysis and dissociation of N,N '-dioctylurea at a constant catalyst concentration in various solvents are determined. The reaction proceeds via two parallel routes. The quantitative description of the effect of the solvent nature on the rates of urea alcoholysis and dissociation is proposed for this reaction series.