| abstract |
NEW MATERIAL:The indazole derivative of formula I (R 1 and R 2 are carboxyalkyl, esterified carboxyalkyl, carbamoylalkyl or cyanoalkyl; R 3 is H, OH, halogen, alkyl, alkoxy, etc.; R 4 is halogen, alkyl, alkoxyl, aryloxy, or nitro; R 5 is H or halogen; one of m and n is 0 and the other is 1; the dotted lines are two bonds which are not adjacent to each other). n EXAMPLE: 4-Chloro-1H-indazol-1-ylacetic acid methyl ester. n USE: Herbicide and plant growth regulator. n PROCESS: The objective compound of formula I is prepared by 1(1) reacting the indazole compound of formula II with a basic condensation agent and the compound of formula III (R 1a is esterified alkyl or cyanoalkyl; X is acid residue), (2) optionally subjecting the product to hydrolysis, ester-exchange, or amidation, and (3) hydrolyzing the alkoxy group of R 3 . n COPYRIGHT: (C)1984,JPO&Japio |