Abstract
The urea–choline chloride-based deep eutectic solvent was found to be an efficient catalyst and reaction media for the additive-free synthesis of imines (Schiff bases) and hydrobenzamides by the reaction of aldehydes with amines and ammonia in good to high yields. Outstanding features of this protocol were the general and atom-economical reaction, absence of external catalysts and additives, simple workup, and availability and recycling of urea–choline chloride as a green solvent.
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Financial support of this work by Chemistry and Chemical Engineering Research Center of Iran is gratefully appreciated.
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Azizi, N., Edrisi, M. Deep eutectic solvent catalyzed eco-friendly synthesis of imines and hydrobenzamides. Monatsh Chem 146, 1695–1698 (2015). https://doi.org/10.1007/s00706-015-1447-2
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DOI: https://doi.org/10.1007/s00706-015-1447-2