PICOLINAMIDE DERIVATIVE AND HARMFUL ORGANISM CONTROL AGENT COMPRISING SAID PICOLINAMIDE DERIVATIVE AS ACTIVE COMPONENT

摘要

Novel compounds of general formula (1), pest controllers containing the same ; and a process for the preparation of the compounds, wherein A is a free valency or optionally substituted alkylene; R1 is one or more groups which m ay be the same or different from each other and are selected from among hydroge n, alkoxy and haloalkoxy; R2 is hydrogen, (substituted) benzyl, (substituted) alkyl or (substituted) alkanoyl; and R3 is hydrogen, (substituted) cycloalky l, (substituted) cycloalkenyl, (substituted) aryl, or a (substituted) heterocyclic group, with the proviso that the cases wherein R1 is hydrogen, A is a free valency or methylene, and R3 is phenyl or cyclohexyl or those wherein A is alkylene and R3 is hydrogen are excepted.