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Efficient synthesis of 2-arylindoles, 2-arylimidazo[1,2-a]pyridines and 2-arylquinoxalines, and their bis-derivatives using [Hmim]OTf ionic liquid supported on nano-silica as a reusable catalyst
- Source :
- Journal of the Iranian Chemical Society. 12:1369-1380
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- An efficient and facile method for the synthesis of 2-arylindoles, 2-arylimidazo[1,2-a]pyridines and 2-arylquinoxalines by the reaction of various α-bromo ketones with anilines, 2-aminopyridine and 1,2-phenylenediamine, respectively, in the presence of N-methylimidazolium trifluoromethanesulfonate ionic liquid supported on nano-silica ([Hmim]OTf@nano-SiO2) as a reusable catalyst under solvent-free conditions has been developed. The bis-derivatives of these compounds were also prepared efficiently, for the first time, using this catalytic system. All products were obtained in high yields and in short reaction times.
Details
- ISSN :
- 17352428 and 1735207X
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of the Iranian Chemical Society
- Accession number :
- edsair.doi...........872d24fb853275be2fc45e1a80aa9e2d