Use of new and known cyclohexene-1-aldehyde derivs. - for control of undesired plant growth in crops, e.g. cereals, coffee, tobacco etc.

    公开(公告)号:DE4142945A1

    公开(公告)日:1993-07-01

    申请号:DE4142945

    申请日:1991-12-24

    Applicant: BASF AG

    Abstract: Control of undesired plant growth comprises treating undesired plants and/or their environment with a herbicidally effective amt. of cyclohehene-1-aldehyde (I). In (I), R1 = CHO, 1,3-dioxolan-2-yl or CH(OR10)2; R2, R3 = H, or 1-4C alkyl or R2 + R3 = -CH2-; R4 = H, 1-4C alkyl or R11; R5 = H; R6, R7 = H or 1-4C alkyl or R6 + R7 = propylene opt. mono, di- or trisubstd. by 1-4C alkyl; R8 = H, 1-4C alkyl or OH; R9 = H, or 1-8C alkyl; R10 = 1-4C alkyl; R11 = H or silyl protecting gp. New cpds. (Ia), i.e. cpds. (I) where R2, R3 and R5-R8 = H, R4 = OR11, R9 = H or 1-8C alkyl; R10 = 1-4C alkyl) are also claimed. Known cpds. (I) are described in Planta Med. 1991, 344-346 and J. Org. Chem 55, 3004-3005 (1990) (isovelleral, isoisovelleral and corresp. hydroxy cpds). J. Chem Soc. Perkin Trans 1, 1990, 1901-1908 (1,3-dimethyl-2-cyclohexane- 1,2-dicarboxaldehyde) and Synth. Commun. 1981, 627-633 (6,6-dimethyl-2-cyclohexene -1,2-dicarbaldehyde). USE - Cpds. (I) can be used as such or as herbicidal compsns. (formulated conventionally) for pre- or post-emergence control of undesired plants, e.g. Chinese hemp, amaranth pigweed and goosefoot, in a wide variety of crops, e.g. cereals, rice, coffee, hops, potatoes, tomatoes, sugar cane and tobacco. Application is at 0.001-5 pref. 0.01-2 kg (I)/ha.

    122.
    发明专利
    未知

    公开(公告)号:DE4138819A1

    公开(公告)日:1993-05-27

    申请号:DE4138819

    申请日:1991-11-26

    Applicant: BASF AG

    Abstract: Hydroxypyridone carboxamides of the formula I in which the substituents have the following meanings: X is oxygen or sulphur; R and R independently of one another are hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or alkoxy, where the abovementioned organic radicals can optionally be substituted; R is hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, halogen or nitro; R is alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkylthio, phenyl or a 5- or 6-membered heterocyclic, aliphatic or aromatic radical containing one to three hetero atoms selected from the group consisting of oxygen, sulphur or nitrogen, where the abovementioned radicals are optionally substituted; with the exception of 6-methyl-4-hydroxypyrid-2-one-3-carboxamide and N-tert-butyl-6-methyl-4-hydroxypyrid-2-one-3-carboxamide.

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