KR850001180A - Method for preparing an aryloxybenzoic acid derivative - Google Patents

Abstract

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Description

Method for preparing an aryloxybenzoic acid derivative

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Claims (13)

A process for preparing a compound of the general formula (II), wherein the phenyltetrazole of the general formula (II) is reacted with a compound of the general formula (III). Wherein X represents a lower alkyl group substituted with a halogen atom or one or more halogen atoms, Y represents a hydrogen or halogen atom or a CF ₃ , CO, NO ₂ or CH ₃ group, and D represents a nitrogen atom or -C (Z ) = (Wherein Z represents hydrogen or halogen atom), W represents hydrogen or halogen atom, or nitro group, R represents hydrogen or halogen atom, or optionally substituted aliphatic, aromatic, alkylthio, amino, acyl Represents an alkylsulfonyl, arylsulfonyl, hydroxy or cyano group, A represents a hydroxy group or a halogen atom, B represents a halogen atom or a hydroxy group, except that B is selected differently from A and contains a hydroxy group The melt may be phenate type.) A process for preparing a compound of formula (I), wherein the compound of formula (IV) is halogenated. Wherein X represents a lower alkyl group substituted with a halogen atom or one or more halogen atoms, Y represents a hydrogen or halogen atom or a CF ₃ , CN, NO ₂ or CH ₃ group, and D represents a nitrogen atom or -C (Z ) = (Wherein Z represents hydrogen or halogen atom), W represents halogen atom, R represents hydrogen or halogen atom, or optionally substituted aliphatic, aromatic, alkylthio, amino, acyl, alkylsulfonyl, Arylsulfonyl, hydroxy or cyano groups.) A process for producing a compound of formula (A), wherein the compound of formula (IV) is nitrided. Wherein X represents a lower alkyl group substituted with a halogen atom or one or more halogen atoms, Y represents a hydrogen or halogen atom or a CF ₃ , CN, NO ₂ or CH ₃ group, and D represents a nitrogen atom or -C (Z ) = (Wherein Z represents hydrogen or a halogen atom) and R represents hydrogen or a halogen atom, or optionally substituted aliphatic, aromatic, alkylthio, amino, acyl, alkylsulfonyl, arylsulfonyl, hydroxy or Cyano group.) A process for preparing a compound of formula (VII), characterized in that the NaN ₃ is semi-melted with a nitrile of formula (IV). Wherein X represents a lower alkyl group substituted with a halogen atom or one or more halogen atoms, Y represents a hydrogen or halogen atom or a CF ₃ , CN, NO ₂ or CH ₃ group, and D represents a nitrogen atom or -C (Z ) = (Wherein Z represents hydrogen or halogen atoms). A process for preparing a salt of a compound of formula (IX) characterized in that the compound of formula (IX) is semi-melted with a suitable base, preferably sodium hydroxide. Wherein X represents a lower alkyl group substituted with a halogen atom or one or more halogen atoms, Y represents a hydrogen or halogen atom or a CF ₃ , CN, NO ₂ or CH ₃ group, and D represents a nitrogen atom or -C (Z (Wherein Z represents a hydrogen or halogen atom), and W represents a hydrogen or halogen atom or a nitro group.) A process for preparing a compound of formula (I), wherein the compound of formula (VIII) is reacted with a compound of formula (VII). Wherein X represents a lower alkyl group substituted with a halogen atom or one or more halogen atoms, Y represents a hydrogen or halogen atom or a CF ₃ , CN, NO ₂ or CH ₃ group, and D represents a nitrogen atom or -C (Z ) = (Wherein Z represents hydrogen or halogen atom), W represents hydrogen or halogen atom, or nitro group, R represents halogen atom or optionally substituted aliphatic, aromatic, alkylthio, amino, acyl, alkylsul Phonyl, arylsulfonyl, hydroxy or cyano groups, and T represents a starter group.) Herbicide composition containing at least one of the compounds according to claims 1 to 6 as an active ingredient. 8. A composition according to claim 7, comprising an active ingredient together with at least one agriculturally acceptable solid or liquid carrier and at least one agriculturally acceptable surfactant. The composition of claim 8 which contains 0.5 to 95% of active ingredient. The composition of claim 9 containing 1 to 95% of a carrier and 0.1 to 20% of a surfactant. Method for selective weeding of crops, characterized in that an effective amount of any one of the active ingredients according to claim 1 is used. Process according to claim 11, wherein any one of the compositions according to claims 7 to 10 is used such that the active ingredient is added at a rate of 0.01 to 5 kg / ha, preferably 0.1 to 2 kg / ha. The method of claim 11 or 12, wherein the crop is legumes. ※ Note: The disclosure is based on the initial application.