Abstract: The pH dependence of kinetics and products in the oxidation of benzylamine by methoxatin (la) and 9-decarboxymethoxatin (lb) has been determined as has the pH dependence of the hydration of la and lb (25 OC in water,/. t= 1.0 with KCI). The hydration equilibria for la and lb are quite comparable. Thus, the pK,,, for hydration of la is 10.51, and for lb the value is 10.73. The rates of hydration and dehydration of la and lb were ...