Synthesis and Characterization of some new Schiff base Compounds derived from 4-Amino benzoic acid and study their Biological activity

The present research includes the preparation of four new derivative which perfect the preparation reaction (4-amino benzoic acid)with aldehyde and ketone (aliphatic, aromatic) (acetaldehyde, benzaldehyde, acetone and benzoyl acetone) this compound are diagnosed by using some spectroscopy method (H1NMR), (I.R), (U.V), (C.H.N) and studies the physical properties (color, melting point). Finally study biological activity with bacteria (positive, negative) grams.