The study examines the influence of varying reaction conditions like solvent presence, solvent absence, air exposure, and air exclusion in a closed vessel on the kinetics of oxidative coupling reactions of amines to form imines, utilizing MCM-41 and Al-20-MCM-41 catalysts. The investigation encompasses both self-coupling and cross-coupling reactions. Results indicate that the self-coupling reaction proceeds at a faster rate with the Al-20-MCM-41 catalyst compared to MCM-41, whereas cross-coupling reactions exhibit a slightly reduced rate with Al-20-MCM-41 relative to MCM-41. Detailed kinetic analysis was conducted for oxidative coupling reaction of amines to imines using Al-20-MCM-41 catalyst under these various conditions to determine the reaction order and rate constants. The reactions demonstrated a shifting order, displaying first-order kinetics at high amine concentrations and approaching zero-order kinetics as the amine concentration decreased.