New (tetra:hydro)phthalimido-cinnamic acid derivatives

    公开(公告)号:DE19610701A1

    公开(公告)日:1997-09-25

    申请号:DE19610701

    申请日:1996-03-19

    Applicant: BASF AG

    Abstract: Tetrahydrophthalimido-cinnamic acid derivatives of formula (I) and their salts are new. R1 = H or 1-6C alkyl; R2 = CN, halo, 1-6C alkyl, 1-6C haloalkyl, 1-6C alkoxy or 1-6C haloalkoxy; R3 = NO2, CN or halo; R4 = OR5, SR5, NR6R7 or NR6OR7; R5 = H, 1-6C alkyl (optionally substituted by halo, cyano, 1-6C alkoxy, 1-6C alkylthio,(1-6C alkyl)carbonyl, (1-6C alkyl)aminocarbonyl, di(1-6C alkyl)aminocarbonyl or 1-6C alkyloxyimino), 3-6C alkenyl, 3-6C alkynyl, 3-6C cycloalkyl, di(1-6C alkoxy)-2-6C alkyl, di(1-6C alkylthio)-2-6C alkyl, 3-6C haloalkenyl, or phenyl or benzyl (both optionally ring-substituted by 1-3 of CN, NO2, halo, 1-6C alkyl, 1-6C haloalkyl, 1-6C alkoxy, 1-6C haloalkoxy, 1-6C alkylthio, 1-6C haloalkylthio and (1-6C alkyl)carbonyl); R6-R8 = (1-6C alkyl)carbonyl, (1-6C haloalkyl)carbonyl or as for R5; or R6+R7 = 4-6-membered hydrocarbon chain, optionally with a non-terminal CH2 replaced by O or 1-4C alkylimino. Also claimed are (1) the preparation of substituted anilines (amino-cinnamic acid derivatives) of formula (X) by reduction of the corresponding nitro compound of formula (XI); and (2) the preparation of the nitro compounds (XI) (a) from 4-chloro-5-nitro-2-R2-aniline by the Meerwein reaction, using an alkyne of formula H-C?=C-COR4 (III), or (b) from 4-chloro-5-nitro-2-R2-benzaldehyde by reaction with an ylide of formula (Ar)3P=CX-COR4 (V), or an acidic CH compound of formula CH2Y-COR4 (VI). X = F, Cl or Br; Y = NO2 or CN; Ar = optionally substituted aromatic residue.

    99.
    发明专利
    未知

    公开(公告)号:DE19536809A1

    公开(公告)日:1997-04-03

    申请号:DE19536809

    申请日:1995-10-02

    Applicant: BASF AG

    Abstract: The invention relates to salicylic acid derivatives of formula I, in which the substituents have the following meaning: A is a five membered heteroaromatic with a oxygen atom, nitrogen atom or sulphur atom or with one to four nitrogen atoms or with one to two nitrogen atoms and additionally a sulphur atom or an oxygen atom in the ring which can carry at least one -B-R group and additionally one or a plurality of the following substituents: nitro, halogen, cyano, optionally substituted alkyl, alkyl thio, alkyl sulfonyl, alkyl sulfinyl, formyl or a R group; a six membered hereroaromatic with two to three nitrogen atoms in the ring which can carry at least one -B-R group and additionally one or a plurality of the following substituents: nitro, halogen, cyano, optionally substituted alkyl, alkyl thio, alkyl sulfonyl, alkyl sulfinyl, formyl or a R group; B is oxygen, sulphur, SO, SO2; X is oxygen or sulphur; Y is nitrogen or C-H; Z is nitrogen or a C-R grouping, the substituents R , R , and R having the meaning given in claim 1. The invention also relates to a process for the preparation of these derivatives, herbicidal agents and a method of controlling undesirable vegetation.

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