Synthesis, anti-oxidant and anti-bacterial properties of diethyl (4-flouro-3-nitro phenylamino) (substituted phenyl) methyl phosphonates.

A new class of α–aminophosphoantes 4a-j have been synthesized by condensation of imines 3a-j with dialkyl phosphite under catalyst free conditions in dry toluene at reflux conditions via pudovik reaction in high yields. All the title compounds were confirmed by physico-spectral analysis. All the title compounds were screened for antioxidant properties by radical scavenging methods such as 1,1-diphenyl-2-picryl hydrazyl (DPPH), hydroxyl radical scavenging method and lipid peroxidation. They exhibited potent in vitro antioxidant activity dose dependently. Their bioassay showed them to possess significant antibacterial activity.