Four benzyl substituted pyridine bromide quaternary ammonium salts,1-benzyl-2′-methylpyridinium bromide([Bz-2-CH3Py]Br),1-benzyl-4′-methylpyridinium bromide([Bz-4-CH3Py]Br),1-benzyl-4′-aminopyridinium bromide([Bz-4-NH2Py]Br) and 1-benzyl-4′-dimethylaminopyridinium bromide([BzDMAP]Br),were synthesized by the reaction of benzyl bromide and 2-methylpyridine,4-methylpyridine,4-aminopyridine or 4-dimethylaminopyridine.Their components and structures were characterized by elemental analyses,infrared spectra,electronic spray mass spectra and conductivity.The experimental results of antibacterial activities indicated that the four salts exhibited good antibacterial properties for colibacillus,bacillus subtilus,aurococcus and bacillus thuringiensis.
