NEW MATERIAL: A compound of formula I [A means hydroxymethyl, chloromethyl, carboxy, etc.; D means CH, N; n is 0, 1; R means H, alkyl, phenyl, etc.; R1 means H, alkyl, haloalkyl; R2 means H, alkyl; T means H, F; X means H, halogen; Y means H, alkyl, haloalkyl, CN, NO2, halogen, phenoxy, etc.; Z means H, OH, halogen, alkoxy, alkenyloxy, alkylthio, etc.; Y and Z are combined are form heterocyclic ring condensed to a phenyl ring, in order to form compounds of formula II, formula III (L means O, S; R3 means H, alkyl; R4 means R3, alkenyl, alkynyl, etc.), etc.
EXAMPLE: N-(4'-chloro-2'-fluoro-5'-hydroxyphenyl)-3-(trifluoromethyl)glutaramic acid.
USE: A herbicide.
PROCESS: By reacting a compound of formula IV with a glutaric acid anhydride compound of formula V, the compound of formula I in which A is COOH can be obtained.
JIEEN UISHINGAA-KOONIRU
JIYON UIRIAMU ATSUSHIYUMOAA
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