Nanoparticles of organosilane-based nitrite ionic liquid immobilized on silica for the diazotization of aniline derivatives and subsequent synthesis of azo dyes

H Valizadeh, M Amiri, F Hosseinzadeh

Index: Valizadeh, Hassan; Amiri, Mohammad; Hosseinzadeh, Fatemeh Dyes and Pigments, 2012 , vol. 92, # 3 p. 1308 - 1313

Full Text: HTML

Citation Number: 19

Abstract

Imidazolium based nitrite ionic liquid containing trimethoxysilyl group was prepared from the reaction of N-methylimidazole and (3-chloropropyl) trimethoxysilane. This ionic liquid was immobilized on silica covalently to give nanoparticles with the imidazolium nitrite moiety remaining intact. The diazotization reaction was performed as a model reaction to examine the activity of these nanoparticles as a nitrosonium source. Excellent performance was ...