Synthesis and characterization of new Schiff-bases derived from 2-(formyl1- H-pyrrole-1-yl)-acetate

The preparation of Schiff-bases diethyl 3,3'-(2,2'-(1E)-(1,4-phenylenebis(azan-1-yl-1-ylidene))bis(methan-1-yl-1- ylidene)bis(1H-pyrrole-2,1-diyl))acetate and diethyl 2,2'-(2,2'-(1Z)-(cyclohexane-1,4-diylbis(azan-1-yl-1-ylidene)) bis(methan-1-yl-1-ylidene) bis(1H-pyrrole-2,1-diyl))diacetate was based on two synthetic routes. The reaction of 1H-pyrrole-2 -carbaldehyde with ethylebromacetate resulted in the formation of 2-(formyl1 -H-pyrrole-1 -yl)- acetate.The reaction of two moles of above with p-phenylenediamine or 1,4-diaminocyclohexane gave the formation of Schiff bases. All compounds were characterised by IR, 1H-NMR spectroscopy and Es-ms spectroscopy.
Author(s): Jasim M. Alshawia, Mouayed Y. Kadhima and Mohamad J. Al-Jeboori

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