Hydrolysis Behaviour of Some Heterocyclic Nitrogen Azomethines

Kinetics of base hydrolysis of some new heterocyclic azomethines derived from aminotriazol and aromatic aldehydes were investigated in the presence of NaOH in 60% (wt/wt) water-ethanol medium. The base hydrolysis of these Schiff bases is strictly first-order with respect to OH^? and Schiff. The rate-determining step is suggested to be the attack of the hydroxide ion on the free base. Effect of the molecular structure of both aldehydes and amines and the nature of organic hydroxylic solvent on the hydrolysis rate was investigated and discussed.