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...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.展开更多
In an attempt to search for novel compounds with agricultural bioactivity,a series of new polysubstituted pyridine derivatives,α-[2-methyl-5-cyano4-（furan-2-yl）-3-ethoxycarboxyl-pyridine-6-thio]acetamide 4a, 2-meth...In an attempt to search for novel compounds with agricultural bioactivity,a series of new polysubstituted pyridine derivatives,α-[2-methyl-5-cyano4-（furan-2-yl）-3-ethoxycarboxyl-pyridine-6-thio]acetamide 4a, 2-methyl-5-cyano-4-（furan-2-yl）-3-acetyl pyridine-6-thioethers [STHZ]5 and 6a were designed and synthesized by a three-step or one-step synthetic route.The structures of all the compounds prepared were confirmed by（elemental） analysis and 1H NMR.The preliminary bioassay results indicate that compound 4a possesses certain fungicidal and herbicidal activities.展开更多
文摘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.
文摘In an attempt to search for novel compounds with agricultural bioactivity,a series of new polysubstituted pyridine derivatives,α-[2-methyl-5-cyano4-（furan-2-yl）-3-ethoxycarboxyl-pyridine-6-thio]acetamide 4a, 2-methyl-5-cyano-4-（furan-2-yl）-3-acetyl pyridine-6-thioethers [STHZ]5 and 6a were designed and synthesized by a three-step or one-step synthetic route.The structures of all the compounds prepared were confirmed by（elemental） analysis and 1H NMR.The preliminary bioassay results indicate that compound 4a possesses certain fungicidal and herbicidal activities.
