SYNTHESIS OF A CATALYST FOR ALDOL CONDENSATION OF PROPIONALDEHYDE
Aldol condensation of aldehydes is one of the most popular reactions for the formation of a bond between two carbon atoms. Aldol condensation was discovered more than a hundred years ago, but the reaction proceeds under the action of homogeneous catalysis, which means that the reagent and the catalyst are in the same aggregative state. This technology can not be implemented in industry, as there is a need for separation of the product and catalyst. Therefore, to carry out the reaction using heterogeneous catalysis, is of great interest. Heterogeneous catalysis will improve the technology for producing 2-methyl-2-pentenal.
An approach to conducting the reaction in the gas phase using heterogeneous catalysts, which are affordable and technologically attractive from the point of view of cheapness of the catalyst and ease of instrumentation, has been developed. In this work, a catalyst of 5% amino acid (Norleucine) on TiO2 was selected and a new method was proposed for carrying out the reaction to obtain 2-methyl – 2-pentenal, with its use.
The product obtained through this reaction is widely used in various areas of the pharmaceutical and cosmetic industries, as well as in the oil industry. When oil is produced, a large amount of side gas is produced, which is currently burned, and a large amount of carbon dioxide is produced, which is harmful to the environment. Aldehydes are produced from the side gases, which are used in this work. Also, aldol condensation of propionaldehyde, allows to obtain products that can improve the quality of motor fuel, and valuable intermediates for organic synthesis.