Protic pyridinium ionic liquid: As an efficient, green and environmentally friendly catalyst for the one-pot synthesis of amidoalkyl naphthol derivatives - 10/01/14

Doi : 10.1016/j.crci.2012.10.012

Heshmatollah Alinezhad ^a, Mahmood Tajbakhsh ^a, Mohammad Norouzi ^a,^b,^⁎ , Saeed Baghery ^c, Maryam Akbari ^b
^a Department of Chemistry, Mazandaran University, Babolsar, Iran
^b Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
^c Young Researchers Club, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran

^⁎Corresponding author. Present address: department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.

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Amidoalkyl naphthol derivatives were synthesized using [2-MPyH]OTf as an ionic liquid catalyst under thermal solvent-free condition.

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Abstract

A green and efficient synthesis of amidoalkyl naphthol derivatives via the three-component reaction between aryl aldehyde, 2-naphthol and amide derivatives using 2-methylpyridinium trifluoromethanesulfonate ([2-MPyH]OTf) as a catalyst (5 mol%) is described. This method provides several advantages over alternative procedures such as low cost, under thermal solvent-free green procedure, simple procedure and direct isolation of the products in high yields.

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Keywords : Amidoalkyl naphthol, 2-Methylpyridinium trifluoromethanesulfonate, Ionic liquid, One-pot synthesis, Solvent-free condition

Plan

Introduction

Results and discussion

Conclusion

Experimental

General procedure for the synthesis of ionic liquid catalyst

General procedure for the synthesis of amidoalkyl naphthol derivatives

Recycling of [2-MPyH]OTf as an ionic liquid catalyst

Spectral data for the synthesis of amidoalkyl naphthol derivatives

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Vol 17 - N° 1

P. 7-11 - janvier 2014 Retour au numéro

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Protic pyridinium ionic liquid: As an efficient, green and environmentally friendly catalyst for the one-pot synthesis of amidoalkyl naphthol derivatives - 10/01/14

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