Abstract
Preparation of N-(3-silicapropyl) imidazolium hydrogen sulfate ([Sipim]HSO4) as a heterogeneous acidic ionic liquid is described. This heterogeneous ionic liquid was used as catalyst for the synthesis of α-aminonitriles by a one-pot condensation of aldehydes, amines, and trimethylsilyl cyanide at room temperature. Catalyst could be recycled for several times without any additional treatment.
Graphical Abstract
A simple and efficient procedure for the preparation of silica-based acidic ionic liquid ([Sipim]HSO4) is described. This heterogeneous solid acid is employed as a catalyst for the synthesis of a-amino nitriles at room temperature.
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The authors are thankful to Persian Gulf University Research Council for partial support of this study.
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Nouri Sefat, M., Saberi, D. & Niknam, K. Preparation of Silica-Based Ionic Liquid an Efficient and Recyclable Catalyst for One-Pot Synthesis of α-Aminonitriles. Catal Lett 141, 1713–1720 (2011). https://doi.org/10.1007/s10562-011-0696-x
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DOI: https://doi.org/10.1007/s10562-011-0696-x