| abstract |
NEW MATERIAL: A compd. represented by formula I (wherein R 1 is 3-4C alkyl or cyclopropyl; R 2 is H, alkyl, alkenyl, alkynyl, halogenoalkyl, halogenoalkenyl, halogenoalkynyl, cyanoalkyl, hydroxyalkyl, alkoxyalkyl, alkoxycarbonylalkyl, alkoxycarbonylalkenyl, mono- di-alkylaminoalkyl, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, heterocyclic alkyl, aralkyl, aroyl or aryl). n EXAMPLE: 4-Amino-1-(N-cyclopentylcarbamoyl)-3-isopropyl-1,2,4-triazolin-5-one. n USE: A herbicide showing excellent selectivity to a crop plant. n PROCESS: A compd. represented by formula II and a compd. represented by formula III are reacted to obtain the compd. represented by formula I. n COPYRIGHT: (C)1990,JPO |