Aldol condensation of aldehydes is one of the most demanded reactions for the formation of a connection between two carbon atoms. Products obtained with its help are widely used in various areas of the pharmaceutical, cosmetic and petroleum industries. Aldol-croton condensation of propyonaldehyde allows to obtain products that can improve the quality of motor fuel, and valuable intermediates for organic synthesis.The scientific novelty of the results obtained is that the process has been heterogenized. A new pathway for the formation of heterogeneous catalysts on titanium (IV) oxide has been proposed. A unique method for selectively proceeding the reaction to obtain 2-methyl – 2-pentenal by using 5% AA (Norleucine) on TiO2 as a catalyst is proposed.