Journal of Sulfur Chemistry p. 259 - 272 (2012)
Update date:2022-08-04
Topics: Amides Thioamides Arylaldehydes 2-naphthol
Zare, Abdolkarim
Akbarzadeh, Shayesteh
Foroozani, Elmira
Kaveh, Hamideh
Moosavi-Zare, Ahmad Reza
Hasaninejad, Alireza
Mokhlesi, Mohammad
Beyzavi, Mohammad Hassan
Zolfigol, Mohammad Ali
Ionic liquid triethylamine-bonded sulfonic acid ([Et3N-SO 3H]Cl, N,N-diethyl-N-sulfoethanammonium chloride) is utilized as a highly efficient, inexpensive and homogeneous catalyst to promote the following one-pot multi-component organic transformations under solvent-free conditions: (i) the condensation of 2-naphthol with arylaldehydes and amides leading to 1-amidoalkyl-2-naphthols, (ii) the reaction of 2- naphthol with aromatic aldehydes and alkyl carbamates to produce 1-carbamatoalkyl-2-naphthols, and (iii) the condensation between 2-naphthol, arylaldehydes and thioamides leading to 1-thioamidoalkyl-2- naphthols. High yields, short reaction times, efficiency, generality, clean process, simple methodology, low cost, easy work-up, ease of preparation of the catalyst, and environmentally benign conditions are some advantages of the protocols.
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