The syntheses of novel hybrid 2-(3,3'-diindolylmethylphenyl)-1H-benzimidazole regioisomers under ecofriendly, solvent-less, catalyst-free conditions and using microwave energy with good to excellent yields in short reaction times were achieved.
Abstract. The acylation of both aliphatic and aromatic amines, alcohols and amino alcohols by simultaneous infrared-ultrasound irradiation (SIUI) in solvent-free conditions in short reaction times and with good to excellent yields was achieved. The results obtained with SIUI and for thermal, infrared and ultrasound energy sources are compared. This is the first report regarding to the application of SIUI in acylation reactions.
Resumen. Se realizó la acilación de aminas, alcoholes y amino alcoholes alifáticos y aromáticos mediante la irradiación simultánea de energía de infrarrojo y de ultrasonido (SIUI), en ausencia de disolventes, en tiempos de reacción cortos y con excelentes rendimientos de reacción. Los resultados obtenidos con SIUI fueron comparados con los obtenidos mediante el empleo de energía térmica, de infrarrojo y de ultrasonido. Este es el primer informe relacionado a la aplicación de SIUI en reacciones de acetilación.
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