Preparation, characterization and application of ionic liquid sulfonic acid functionalized pyridinium chloride as an efficient catalyst for the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones, By Abdolkarim Zare

Research

Title	Preparation, characterization and application of ionic liquid sulfonic acid functionalized pyridinium chloride as an efficient catalyst for the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones
Type	Article
Keywords	Sulfonic acid functionalized pyridinium chloride {[Pyridine–SO3H]Cl}; Ionic liquid; 12-aryl-8,9,10,12-tetrahydrobenzo[a]- xanthen-11-one; Solvent-free
Journal	JOURNAL OF MOLECULAR LIQUIDS
DOI	10.1016/j.molliq.2013.05.009
Researchers	Ahmad Reza Moosavi-Zare (First researcher) , Mohammad Ali Zolfigol (Second researcher) , Mahmoud Zarei (Third researcher) , Abdolkarim Zare (Fourth researcher) , Vahid Khakyzadeh (Fifth researcher)

Abstract

In this work, novel ionic liquid namely sulfonic acid functionalized pyridinium chloride {[Pyridine–SO3H]Cl} is synthesized, and characterized by studying its IR, UV, 1H and 13C NMR as well as mass spectra. This ionic liquid is used as an efficient, homogeneous and reusable catalyst for the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by the one-pot multi-component condensation of 2-naphthol with arylaldehydes and dimedone (5,5-dimethylcyclohexane-1,3-dione).