N-tosyl-nitropyrroles as dienophiles in polar cycloaddition reactions developed in protic ionic liquids.

Claudia Della Rosa; Maria Kneeteman; Pedro Maximo Mancini

doi:10.3390/ecsoc-15-00636

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Influence Of The Aromatic Substituente on the Aggregation Properties of Direct Dyes Derived from 4,4\'-Diaminostilbene-2,2\'-Disulphonic Acid

N-tosyl-nitropyrroles as dienophiles in polar cycloaddition reactions developed in protic ionic liquids.

Claudia Della Rosa

Maria Kneeteman

Pedro Maximo Mancini

¹ Quimica Organica/Facultad de Ingenieria Quimica/UNL

Published: 02 November 2011 by MDPI in The 15th International Electronic Conference on Synthetic Organic Chemistry session General Organic Synthesis

https://doi.org/10.3390/ecsoc-15-00636

Abstract: N-Tosyl-2-nitropirrole and N-Tosyl-3-nitropirrole reacts with poorly and activated dienes using protic ionic liquids as reaction media. They exhibit a dienophile character producing the corresponding indoles through a Diels-Alder process. In all cases the presence of protic ionic liquids as reaction media improve the yields respect to use of molecular solvent, while the temperature and the reaction time decrease.

Keywords: Nitropyrroles, Indole, Ionic Liquid, Diels-Alder

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Claudia Della Rosa

Maria Kneeteman

Pedro Maximo Mancini