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Journal of the Mexican Chemical Society
versão impressa ISSN 1870-249X
Resumo
TAN, Jin; FANG, Dong e HU, Yu Lin. Supported Ionic Liquid H2 PMo12 O 40 -NMPIL@SiO2 as an Efficient Catalyst for Alkylation of Indoles with Epoxides or Alcohols under Mild Conditions. J. Mex. Chem. Soc [online]. 2018, vol.62, n.1, 00010. ISSN 1870-249X. https://doi.org/10.29356/jmcs.v62i1.584.
3-Alkylindoles have been prepared in 91~99% excellent yields by alkylation of indoles with epoxides or alcohols catalyzed by the recyclable heteropoly acid based supported functionalized ionic liquid H2PMo12O40-NMPIL@SiO2 under heterogeneous catalysis at room temperature. The influence of various reaction parameters including catalyst selection, catalyst amount, reaction time, solvent, and reaction temperature were studied. The heterogeneous supported catalyst was easily recoverable by filtration, and could be used for six consecutive runs without significant loss in catalytic activity. This study demonstrated a green and highly efficient chemistry technology in the preparation of 3-alkylindoles.
Palavras-chave : Supported ionic liquid; alkylation; indoles; 3-alkylindoles; heterogeneous catalysis.