Process for preparing 1-substituted 5- or 3-hydroxypyrazoles

    公开(公告)号:CZ20011713A3

    公开(公告)日:2002-01-16

    申请号:CZ20011713

    申请日:1999-11-06

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    Method for producing oxime ethers
    237.
    发明专利

    公开(公告)号:AU5830801A

    公开(公告)日:2001-10-23

    申请号:AU5830801

    申请日:2001-04-04

    Applicant: BASF AG

    Abstract: A process for preparing oxime ethers of the formula I,in which the substituents R and R can be identical or different and can each be cyano, alkyl, haloalkyl, cycloalkyl, phenyl and naphthyl, and R can be alkyl, by alkylation of oximes of the formula IIunder basic conditions with an alkylating agent from the group of alkyl halides, dialkyl sulfates and dialkyl carbonates, wherein the reaction is carried out in a mixture consisting of5 to 25% by weight of polar aprotic solvents selected from the group of nitrites, N-alkylpyrrolidones, cyclic urea derivatives, dimethylformamide and dimethylacetamide,55 to 95% by weight of nonpolar solvents selected from the group of aliphatic hydrocarbons, aromatic hydrocarbons, alkyl alkylcarboxylates and ethers, and0 to 25% by weight of water, the contents thereof totaling 100%.

    Substituted 4-(3-alkenyl-benzoyl)-pyrazoles

    公开(公告)号:NZ500993A

    公开(公告)日:2001-08-31

    申请号:NZ50099398

    申请日:1998-05-05

    Applicant: BASF AG

    Abstract: 4-(3-Alkenylbenzoyl)pyrazoles of the formula I wherein: R1 and R2 are each hydrogen, nitro, halogen, cyano, thiocyanato, alkyl, haloalkyl, alkoxyalkyl, alkenyl, alkynyl, OR6, -OCOR7, -OSO2 R7, -SH, -S(O)nR8, -SO2OR6, -SO2 NR6R9, -NR9SO2R7 or -NR9COR7; R3 is hydrogen, halogen, alkyl, haloalkyl, alkoxy, alkenyl or alkynyl; R4 and R5 are each hydrogen, nitro, halogen, cyano, thiocyanato, alkyl, haloalkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, alkylthio, haloalkoxy, -COR10, -CO2 R11, -COSR10, -CONR10R11, -C(R12)=NR13, -PO(OR10)(OR11), alkyl which carries a radical from the following group: hydroxyl, -COR10, -CO2R10, -COSR10, -CONR10R11 or -C(R12)= NR13; heterocyclyl, heterocyclylalkyl (where the heterocyclyl radical of the two last-mentioned radicals is three- to seven-membered, saturated or partially unsaturated, mono- or polycyclic and contains one to three heteroatoms selected from the group consisting of oxygen, nitrogen and sulfur), phenyl, phenylalkyl, hetaryl or hetarylalkyl (where the hetaryl radical of the two last-mentioned radicals is aromatic, mono- or polycyclic and may, in addition to carbon ring members, additionally contain one to 4 nitrogen atoms or one to three nitrogen atoms and one oxygen or one sulfur atom or one oxygen or one sulfur atom), it being possible for the last six radicals to be substituted; or R4 and R5 together form a alkanediyl chain which may be mono- to tetra-substituted by alkyl and/or interrupted by oxygen or sulfur or by nitrogen with or without substitution by; n is 0, 1 or 2; R6 is hydrogen, alkyl, haloalkyl, alkoxyalkyl, alkenyl or alkynyl; R7 is alkyl or haloalkyl; R8 is alkyl, haloalkyl, alkoxyalkyl, alkenyl or alkynyl; R9 is hydrogen or alkyl; R10 is hydrogen, alkyl, cycloalkyl, haloalkyl, alkenyl, alkynyl, phenyl or benzyl, it being possible for the last two radicals to be partially or fully halogenated and/or to carry one to three radicals from the following group: nitro, cyano, alkyl, -haloalkyl, alkoxy, haloalkoxy, alkylcarbonyl or alkoxycarbonyl; R11 is hydrogen, alkyl, alkenyl or alkynyl; or R10 and R11 together form a alkanediyl chain which may be mono- to tetra-substituted by alkyl and/or interrupted by oxygen or sulfur or by nitrogen with or without substitution by alkyl; R12 is hydrogen, alkyl, haloalkyl, alkoxy, alkoxycarbonyl, cycloalkyl, alkenyl, alkynyl, phenyl or benzyl, it being possible for the last two radicals to be partially or fully halogenated and/or to carry one to three radicals of the following group: nitro, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylcarbonyl or alkoxycarbonyl; R13 is alkyl, haloalkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, cycloalkoxy, alkenyloxy, alkynyloxy, phenyl, benzyl or phenylalkoxy, it being possible for the last three radicals to be partially or fully halogenated and/or to carry one to three radicals from the following group: nitro, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylcarbonyl or alkoxycarbonyl; Q is a pyrazole of the formula II, which is linked in position 4; R14 is alkyl, haloalkyl, phenyl or phenyl which is partially or fully halogenated and/or carries one to three of the following radicals: nitro, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy; R15 is hydrogen, alkyl, haloalkyl, alkylcarbonyl, haloalkylcarbonyl, alkoxycarbonyl, alkylsulfonyl, haloalkylsulfonyl, phenylalkyl, phenylcarbonyl, phenylcarbonylmethyl, phenoxycarbonyl or phenylsulfonyl, the last five substituents being unsubstituted or the phenyl ring in question being partially or fully halogenated and/or carrying one to three of the following radicals: nitro, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy; R16 is hydrogen, alkyl or haloalkyl; and agriculturally useful salts thereof. The compounds are useful as herbicides.

    ЗАМЕЩЕННЫЕ 2-БЕНЗОИЛЦИКЛОГЕКСАН-1,3-ДИОНЫ

    公开(公告)号:EA001605B1

    公开(公告)日:2001-06-25

    申请号:EA199900618

    申请日:1997-12-19

    Applicant: BASF AG

    Abstract: Изобретениеотноситсяк 2-бензоилциклогексан-1,3-дионамформулы Iвкоторой R, Rозначаютводород, нитро, галоген, циано, родано, алкил, галогеналкил, алкоксиалкил, алкенил, алкинил, группы -OR, -OCOR, -OSOR, -SH, -S(O)R, -SOOR, -SONRR, -NRSORили -NRCOR;Rозначаетводород, циано, алкил, галогеналкил, группы -OR, -SRили -NRR;Rводород, необязательнозамещенныйалкил, циклоалкил, алкенил, циклоалкенил, алкинил, группы -COR, -COR, -COSRили -CONRR;Хкислородилигруппу NR;n имеетзначение 0, 1 или 2;Rозначаетводород, алкил, галогеналкил, алкоксиалкил, алкенилилиалкинил;Rалкилилигалогеналкил;Rалкил, галогеналкил, алкоксиалкил, алкенилилиалкинил;Rводородилиалкил;Rалкил, алкенил, алкинил, фенилилибензил;Rалкил, галогеналкил, алкенилилиалкинил;Q необязательнозамещенноесвязанноев положении 2 циклогексан-1,3-дионовоекольцо;атакжеихприменимыев сельскомхозяйствесоли, способи промежуточныепродуктыдляполучениясоединенийформулы I, средства, содержащиеих, атакжеприменениеэтихпроизводныхилисодержащихихсредствдляборьбыс сорнымирастениями.

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