4.5 Article

Fast and Eco-friendly Synthesis of Dipyrromethanes by H2SO4•SiO2 Catalysis under Solvent-free Conditions

Journal

CHINESE JOURNAL OF CHEMISTRY
Volume 28, Issue 2, Pages 259-262

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.201090063

Keywords

dipyrromethane; H2SO4 center dot SiO2; solvent-free; eco-friendly

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For the first time, sillica-supported sulfuric acid has been used as a heterogeneous, reusable and efficient catalyst at room temperature to give the corresponding dipyrromethanes in a very short reaction time. The new reaction procedure is simple and solvent is not required.

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