1887
Volume 2014, Issue 1
  • E-ISSN: 2223-506X

Abstract

This study aims to synthesis a series of ()--(substituted benzylidene)-9-ethyl-9-carbazole-3-amines, using solvent-free fly-ash:perchloric acid catalyst under microwave irradiation. To then characterize them using analytical, physical and spectroscopic data. Solvent-free microwave assisted ()imines were adopted for the synthesis of ()--(substituted benzylidene)-9-ethyl-9-carbazole-3-amine, using fly-ash:perchloric acid as a catalyst. They were characterized by IR, NMR and mass spectroscopic data. The IR and NMR spectral data was correlated with substituent constants, F and R parameters using Hammett equation to study the effect of the substituents. The yield of the synthesized imines were more than 75%. The spectral data of these ()--(substituted benzylidene)-9-ethyl-9-carbazole-3-amines had been correlated using single and multi-regression analysis. These gave a satisfactory or fair degree of correlation, with some parameters. Easy handling, non-hazardous and an environmentally safe method had been adopted for the synthesis of ()-imines, using fly-ash:perchloric acid as catalyst, with better yields. Some of the Hammett spectral correlations were found to be satisfactory with the observed spectroscopic data.

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2014-06-01
2019-12-11
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