Abstract
Various aryl nitriles were readily synthesized from aerobic oxidation of substituted benzyl alcohols in deep eutectic solvent composed of choline chloride (ChCl) and p-toluenesulfonic acid (p-TsOH) in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), followed by condensation with hydroxylamine hydrochloride. High yields of corresponding nitriles have been obtained under mild reactions conditions. This strategy belongs to a novel and environmentally benign transition-metal-free one-pot cascade process for the synthesis of nitriles.
Graphic abstract
Various aryl nitriles were readily synthesized from aerobic oxidation of substituted benzyl alcohols in deep eutectic solvent (ChCl/p-TsOH) in the presence of TEMPO, followed by condensation with hydroxylamine hydrochloride. This strategy belongs to a novel and environmentally benign transition-metal-free one-pot cascade process for the synthesis of nitriles.
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We appreciate the financial support from the National Natural Science Foundation of China (Grant No. 21776056).
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Liu, L., Zhang, HY., Yin, G. et al. Deep eutectic solvent promoted one-pot synthesis of nitriles from alcohols. J Chem Sci 132, 122 (2020). https://doi.org/10.1007/s12039-020-01815-z
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DOI: https://doi.org/10.1007/s12039-020-01815-z