Studies On The Synthesis And Biological Activities Of Aryloxycarboxylic Acid Derivatives

In this thesis, we design and synthesize twenty five new title compounds, according to their structures of the new compounds, they can be dividied into the below three series:Series (I) N-[ 3 -aryloxy acetyl (propionyl)] O,O' -dialkyl (aryl) thio-(oxy-)phosphoryl hydrazineSeries (II) N-[ a-aryloxy propionyl] O,O' -diphenyl a -amino aryl melhylene phosphonatesSeries (HI) p-aryloxy acetamido (propionamido) phenyl sulfuryl amideSeries I and II were synthesized from aryloxy acetic (propionic) acid. thio(oxy)-phosphophydrazide and a -amino aryl methylene phosphonates .And ten p-aryloxy acetamido (propionamido) phenyl sulturie amide were synthesized from aryloxy acetic (propionic) acid and sulfonic acid amide .The conditions of these reactions had been investigated. Their structures were confirmed by IR, - 1H NMR MS and elementary analysis.The preliminary herbicidal activities of compounds () , ( ) (IHrlllio) have been determined. It is found that compounds,such as I 2, have good inhibitory activities against root and stalk of both dicotyledon plant and monocotyledon plant.