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Catalytic auto-condensation of 2,4-pentanedione promoted by Sm(III) acetylacetonate: the X-ray structure of a novel complex [Sm(CH3COO)3(H2O)2](H2O)2 |
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| Authors: | Jos Luis Arias Armando Cabrera Pankaj Sharma No Rosas Jos Luis García S Hernandez |
| Institution: | a Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, C.P. 54700, Estado de Mexico, Mexico b Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510 Mexico D.F., Mexico |
| Abstract: | An efficient one-pot catalytic method to obtain 4,6-dimethyl-2-hydroxyacetophenone (A) is reported, the reaction proceeds via the intermolecular auto-condensation of 2,4-pentanedione using samarium(III) acetylacetonate (Sm(AcAc)3) as promoter. A novel complex Sm(CH3COO)3(H2O)2](H2O)2 (I) was isolated from the reaction media. The structure of I was determined by X-ray crystallography showing that the central atom is ennea-coordinated (monocapped square-antiprism geometry). This complex I also shows activity in the named autocondensation reaction. |
| Keywords: | Catalytic auto-condensation Sm(III) acetylacetonate Metallic acetylacetonates Homogeneous catalysis |
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