33PYRIDYLLOXYYALKANECARBONIC ACID AMIDE AND PREPARATION METHOD THEREOF AND ANTAGONISM COMPOSITE CONTAINING THIS COMPOUND AS EFFECTIVE COMPONENT TO HINDER GROWTH OF PLANT AND TO WEED FROM CROPS

摘要

The present invention relates to 3-pyridyl-oxy-alkancarboxylic acid amides of formula wherein A and B are individually hydrogen, halogen, alkyl, cyano, nitro or amino, C is hydrogen, halogen or nitro N IS 1 OR 2 Q is an aliphatic bridge, that can also be branched, unsaturated or substituted, R1 and R2 independently are hydrogen, alkyl, alkoxy, alkenyl, alkynyl, phenyl or benzyl, R1 and R2 together with the nitrogen atom to which they are bound are a 5 to 6 membered heterocycle.