DICARBOXIMIDE AND HERBICIDE CONTAINING THE SAME

    公开(公告)号:JP2000297087A

    公开(公告)日:2000-10-24

    申请号:JP2000083348

    申请日:2000-03-24

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain a new compound having herbicidal property and useful as an active ingredient of a herbicide preferably in the form of solution capable of directly scattering, emulsion, paste, oil dispersion, etc. SOLUTION: This compound is shown by formula I [X is O or S; R1 is H, hydroxyl, a 1-6C (substituted)alkyl or the like; R2 and R3 are each nitro, cyano, a halogen, H or the like; but in the case where X is O and R2 and R3 are each phenyl, R1 is not phenyl or H and all of R1 to R3 are not methyl or the like], for example N-isopropylthiophene-3,4-carboximide. For example, a compound of the formula I can be produced by reacting (A) a carboxylic acid anhydride of formula II with (B) an amine of the formula H2N-R1 in a molar ratio of the component A to the component B ranging from 0.9 to 1.5, (C) if necessary in the presence of an acid catalyst (ex. aromatic sulfonic acid), in a solvent at 0-150 deg.C, preferably 20-100 deg.C, preferably while removing a preparing reaction water or the like.

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