Rapid synthesis of 1-amidoalkyl-2-naphthols over sulfonic acid functionalized imidazolium salts, By Abdolkarim Zare

Research

Title	Rapid synthesis of 1-amidoalkyl-2-naphthols over sulfonic acid functionalized imidazolium salts
Type	Article
Keywords	Ionic liquid; Sulfonic acid functionalized imidazolium salts; 1-Naphthol; 1-Amidoalkyl-2-naphthol; Solvent-free
Journal	APPLIED CATALYSIS A-GENERAL
DOI	10.1016/j.apcata.2011.04.013
Researchers	Mohammad Ali Zolfigol (First researcher) , Ardeshir Khazaei (Second researcher) , Ahmad Reza Moosavi-Zare (Third researcher) , Abdolkarim Zare (Fourth researcher) , Vahid Khakyzadeh (Fifth researcher)

Abstract

Novel sulfonic acid functionalized imidazolium salts including 3-methyl-1-sulfonic acid imidazolium chloride {[Msim]Cl} (an ionic liquid), 1,3-disulfonic acid imidazolium chloride {[Dsim]Cl} (an ionic liquid) and 3-methyl-1-sulfonic acid imidazolium tetrachloroaluminate {[Msim]AlCl4} (a solid) efficiently catalyze one-pot multi-component condensation of -naphthol with aromatic aldehydes and amide derivatives under solvent-free conditions to afford 1-amidoalkyl-2-naphthols in excellent yields (81–96%) and in very short reaction times (1–40 min).