Molecules

Preparation of second generation ionic liquids by efficient solvent-free alkylation of N-heterocycles with chloroalkanes

G Cravotto, EC Gaudino, L Boffa, JM Lévêque…

Index: Cravotto, Giancarlo; Gaudino, Emanuela Calcio; Boffa, Luisa; Leveque, Jean-Marc; Estager, Julien; Bonrath, Werner Molecules, 2008 , vol. 13, # 1 p. 149 - 156

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Citation Number: 55

Abstract

Abstract: Non-conventional techniques, such as microwave (MW) and power ultrasound (US) as well as combined MW/US irradiation, have been used to promote one-pot synthesis of second-generation ionic liquids (ILs), cutting down reaction times and improving yields. However, the use of chloroalkanes in the alkylation of N-heterocycles requires more drastic conditions if results are to match those obtained with more reactive alkyl halides. The ...