| abstract |
NEW MATERIAL:A compound shown by the formula I [R 1 is -OM (M is H, or alkyl metal), lower alkoxy, lower acyloxy, group shown by the formula II(R 3 and R 4 are H, or lower alkyl), or group shown by the formula III (R 5 is H, lower alkyl, or alkali metal); R 2 is halogen, nitro, chlorosulfonyl, sulfo, -CF 3 , or -SCF 2 H; n and m are ≥1 and m+n≤5]. n EXAMPLE: 2-Trifluoromethyl-3',5'-dinitro-4'-hydroxybenzophenone. n USE: Drugs and agricultural chemicals such as herbicide, plant growth regulator, fungicide, antiinflammatory-agent and an intermediate for synthesizing them. Having high fungicidal effects on gramineous plants, broadleaved weeds, having no phytotoxicity on crops such as soybeans, etc. n PROCESS: A 2-trifluoromethylbenzoic acid shown by the formula IV (X is OH, or Cl) or its acid chloride and a substituted benzene compound shown by the formula V are subjected to Friedel-Crafts reaction in the presence of polyphosphoric acid, etc., to give a compound shown by the formula I . n COPYRIGHT: (C)1984,JPO&Japio |