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KEYWORDSSeveral 2-azetidinones 2a-e and 4-thiazolidinones 3a-e have been synthesized from halosubstituted Schiff bases using conventional as well as microwave technique. The newly synthesized compounds were established on the basis of spectroscopic technique. Further, all compounds screened for antimicrobial activity against Bacillus subtilis, Escherichia coli, Aspergillus niger and Aspergillus flavus. Most of the titled compounds show potent activity.

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Organic reactions in aqueous media have attracted increasing interest recently because of environmental issues and the understanding of biochemical processes. In the present investigation eight new pyrazoline derivatives were synthesized by condensing different hydroxyl chalcones with hydrazine hydrate in dilute ethanolic potassium hydroxide or sodium hydroxide solution at room temperature according to Claisen-Schmidt condensation reaction. All these compounds were characterized by IR and NMR spectral data. These synthesized compounds were screened for pharmacological activity such as antimicrobial and anthelmintic activity.

A Practical Iodination of Aromatic Compounds by Using Iodine and Iodic Acid. -A simple, mild, and efficient method for the iodination of various aromatic amines, hydroxy aromatic aldehydes, hydroxy acetophenones and phenols is presented (34 examples). -(SHINDE, A. T.; ZANGADE, S. B.; CHAVAN, S. B.; VIBHUTE, A. Y.; NALWAR, Y. S.; VIBHUTE*, Y. B.; Synth. Commun. 40 (2010) 23, 3506-3513, http://dx.

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