Synthetic Communications p. 93 - 101 (2012)
Update date:2022-07-30
Topics:
Deshmukh, Krishna M.
Qureshi, Ziyauddin S.
Patil, Yogesh P.
Bhanage, Bhalchandra M.
A simple and efficient protocol for the one-pot synthesis of 1-amidoalkyl-2-naphthols and novel 1-carbamatoalkyl-2-naphthols has been described under solvent-free conditions, using N-methyl-2-pyrrolidone hydrogen sulfate (NMP+HSO4-) as a reusable Brnsted acidic ionic liquid. This methodology has several advantages such as use of a halogen-free ionic liquid (NMP+HSO4-), excellent yields, short reaction time, easy workup procedure, and reusable catalyst.
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