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A series of new thiazoline derivatives 2-alkyl(aryl) imino-4-amino-5-ethoxycarbonyl-3-phenyl-3Hthiazoline (3) and bis(2-imino-4-amino-5-ethoxycarbonyl-3-phenyl-3H-thiazoline alkylene(4) have been synthesized by reactions of intermediate 4-amino-5-ethoxycarbonyl-2-methylthio-3-phenyl-3Hthiazolinium sulphate(2) with alkylamines or arylamine in 64%-89%yields.The structures of 3 and 4 have been confirmed by ~1H NMR,EI-MS,IR spectroscopy and elemental analyses.Some compounds exhibited high or moderate herbicidal activities against the roots of rapeseed and barnyard grass at 100mg/L.
A series of new thiazoline derivatives 2-alkyl (aryl) imino-4-amino-5-ethoxycarbonyl-3-phenyl-3Hthiazoline (3) and bis (2-imino-4-amino-5-ethoxycarbonyl-3-phenyl-3H 3-phenyl-3Hthiazolinium sulphate (2) with alkylamines or arylamine in 64% -89% yield. The structures of 3 and 4 have been confirmed by ~ 1H NMR, EI-MS, IR spectroscopy and elemental analyzes. Compounds compounds high or moderate herbicidal activities against the roots of rapeseed and barnyard grass at 100 mg / L.