[2D05-2D07] Interenational sess. (5)

[2D06] Effect of La-modified alumina catalyst on intramolecular aldol condensation reaction of 2,5-hexanedione

○Zijian Ling¹, Nishimura Shun¹ (1. Japan Advanced Institute of Science and Technology)

Keywords:2,5-Hexanedione, 3-Methyl-2-cyclopentanone, Aldol Condensation

The selective synthesis of 3-methyl-2-cyclopentenone (MCP) from 2,5-hexanedione (HD) over a bi-functional catalyst was investigated. In our previous studies, it has been demonstrated that alumina-based catalysts showed good performances for the intramolecular aldol condensation of HD to MCP with high yields and selectivity. Therefore, this experiment mainly focuses on a further enhancement of alumina-based reactivity by genesis of Lewis acidity and/or acid-base nature on the surface of γ-Al₂O₃ by addition of various metals.