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    Process and intermediate products for preparing hydroxylamine-ethers and their salts
    22.
    发明专利
    Process and intermediate products for preparing hydroxylamine-ethers and their salts 未知

    公开(公告)号：AU5813094A

    公开(公告)日：1994-07-19

    申请号：AU5813094

    申请日：1993-12-17

    Applicant: BASF AG

    Inventor： HARREUS ALBRECHT ,  GOTZ NORBER ,  MAYWALD VOLKER ,  RANG HARALD ,  MISSLITZ ULF ,  KLEIN ULRICH

    IPC: C07C239/20 ,  C07C251/54 ,  C07C253/30 ,  C07C255/54 ,  C07C259/06

    Abstract: PCT No. PCT/EP93/03597 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed Dec. 17, 1993 PCT Pub. No. WO94/14757 PCT Pub. Date Jul. 7, 1994Hydroxylamine ethers I I (where X is NO2, CN, halogen, alkyl or haloalkyl, Y is H, NO2, CN, halogen, alkyl or haloalkyl, n is 0-2 or 1-4 where Y and all radicals X are halogen and Alk is unsubstituted or substituted alkylene) and their salts with mineral acids or strong organic acids are prepared by reacting either a hydroximino compound II II (where R1 is alkyl, R2 is alkyl or alkoxy or R1+R2 form an alkylene chain) in the presence of an alkali metal hydroxide, alkali metal alcoholate, alkali metal bicarbonate or alkali metal carbonate as the base, or the corresponding anion II directly, with an alkylating agent III III (where R3 is unsubstituted or substituted alkyl or unsubstituted or substituted phenyl) to give an oximino derivative IV IV said derivative is cleaved by means of a mineral acid or a strong organic acid to give the salt of I and, if desired, the latter is converted by means of a base into the free compound I. The hydroxylamine ethers I are intermediates for crop protection agents and drugs.

    PROCESS FOR THE PRODUCTION OF IZOXAZOLE-4,5-DICARBONIC ACID -DIESTHERS
    23.
    发明专利
    PROCESS FOR THE PRODUCTION OF IZOXAZOLE-4,5-DICARBONIC ACID -DIESTHERS 未知

    公开(公告)号：HUT56835A

    公开(公告)日：1991-10-28

    申请号：HU93890

    申请日：1990-03-20

    Applicant: BASF AG

    Inventor： KUEKENHOEHNER THOMAS ,  MAYWALD VOLKER

    IPC: C07D261/18 ,  C07D261/10 ,  C07D413/04

    Abstract: Preparation of isoxazole-4,5-dicarboxylic diesters of the general formula I in which R is any desired organic radical which is inert under the reaction conditions and in which R and R each represent an alkyl, cycloalkyl or benzyl group, characterised in that an aldoxime of the general formula II is reacted with a maleic or fumaric diester of the general formula III R OOC-C=C-COOR (III), in which R and R are identical or different and have the abovementioned meaning, in the presence of an aqueous solution of a hypohalite, in which the hypohalite is present in excess, relative to II.

    PREPARATION OF ISOXAZOLE-4, 5-DICARBOXYLIC DIESTERS
    24.
    发明专利
    PREPARATION OF ISOXAZOLE-4, 5-DICARBOXYLIC DIESTERS 未知

    公开(公告)号：CA2038127A1

    公开(公告)日：1991-09-22

    申请号：CA2038127

    申请日：1991-03-11

    Applicant: KUEKENHOEHNER THOMAS ,  MAYWALD VOLKER ,  BASF AG

    Inventor： KUEKENHOEHNER THOMAS ,  MAYWALD VOLKER

    IPC: C07D261/18 ,  C07D413/04

    Abstract: O.Z. 0050/41496 The preparation of isoxazole4,5-dicarboxylic diesters of the formula I (I) where R1 is any organic radical which is inert under the reaction conditions, and R2 and R3 are each alkyl, cycloalkyl or benzyl, entails reacting an aldoxime of the formula II (II) with a diester of maleic or fumaric acid, of the formula III R2OOC-C=C-COOR3 (III) where R2 and R3 are identical or different and have the abovementioned meanings, in the presence of an aqueous solution of a hypohalite which is present in excess relative to II.

    HERBICIDE COMPOSITIONS CONTAINING AMIDES OF OXAZOL- OR THIAZOL-CARBOXYLIC ACIDS AND PROCESS FOR PRODUCING THE ACTIVE COMPONENTS
    25.
    发明专利
    HERBICIDE COMPOSITIONS CONTAINING AMIDES OF OXAZOL- OR THIAZOL-CARBOXYLIC ACIDS AND PROCESS FOR PRODUCING THE ACTIVE COMPONENTS 未知

    公开(公告)号：HUT56084A

    公开(公告)日：1991-07-29

    申请号：HU621290

    申请日：1990-09-25

    Applicant: BASF AG

    Inventor： DITRICH KLAUS ,  MAYWALD VOLKER ,  HAMPRECHT GERHARD ,  HARREUS ALBRECHT ,  WUERZER BRUNO ,  WESTPHALEN KARL-OTTO

    IPC: C07D277/20 ,  A01N43/74 ,  A01N43/76 ,  A01N43/78 ,  C07D263/34 ,  C07D263/36 ,  C07D263/46 ,  C07D277/56 ,  C07D413/04 ,  C07D413/12 ,  C07D413/14 ,  C07D417/04 ,  C07D417/12 ,  C07D417/14

    Abstract: Oxazole- or thiazolecarboxamides of the formulae Ia and Ib in which the substituents have the following meanings: X is oxygen or sulphur; R is hydrogen; halogen; optionally substituted C1-C6-alkyl, benzyl, cycloalkyl, alkenyl, alkynyl, phenyl, phenoxy or phenylthio; alkoxy; alkylthio; haloalkoxy; haloalkylthio; or an optionally substituted 5- or 6-membered heterocyclic radical; R is formyl, 4,5-dihydrooxazol-2-yl or the radical -COYR ; Y is oxygen or sulphur; R is hydrogen; cycloalkyl; optionally substituted alkyl, phenyl, benzyl, alkenyl, cycloalkenyl or alkynyl; an optionally substituted 5- or 6-membered heterocyclic radical; phthalimido; tetrahydrophthalimido; succinimido; maleimido; a cation equivalent; or a radical -N=CR R ; R and R are hydrogen; alkyl; cycloalkyl; phenyl; furyl or together are a methylene chain having 4 to 7 chain members; R is hydrogen or optionally substituted alkyl or cycloalkyl; R is hydroxyl or alkoxy; optionally substituted alkyl, cycloalkyl, alkenyl, alkynyl, phenyl or naphthyl; an optionally substituted 5- or 6-membered heterocyclic radical; or R and R together are a radical of the structure -(CH2)n-Yp-(CH2)q-, where n and q are 1, 2 or 3, p is 0 or 1 and Y is oxygen, sulphur or N-methyl, or form the radical of the formula -(CH2)3-CO-, and their environmentally compatible salts, where in the formula Ib X does not represent sulphur when R represents 3-pyridyl, R represents CO2CH2CH3 or R represents hydrogen, and where in the formula Ia X does not represent sulphur or R does not represent thien-2-yl when YR represents OH and R represents hydrogen and R represents methyl, processes for their preparation, and herbicidal agents containing the compounds of the formula Ia or Ib as active substances.

    METHOD FOR PRODUCING 1-SUBSTITUTED 5- OR 3-HYDROXYPYRAZOLES
    29.
    发明专利
    METHOD FOR PRODUCING 1-SUBSTITUTED 5- OR 3-HYDROXYPYRAZOLES 未知

    公开(公告)号：BG65026B1

    公开(公告)日：2006-12-29

    申请号：BG10553801

    申请日：2001-05-22

    Applicant: BASF AG

    Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOETZ NORBERT ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN

    IPC: C07D231/20

    Abstract: The invention relates to a method for producing 1-substituted 5- and/or 3-hydroxypyrazoles of formula wherein R1 represents C1-C6-alkyl,C2-C6-alkenyl, C2-C6-alkinyl, C3-C6-cycloalkyl or C1-C4-alkoxy, whereby these groups can be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, or a cyclic ring system with 3-14 ring atoms, by reacting a 3-alkoxyacrylic acid alkyl ester for formula wherein R2, R3 independently means C1-C6-alkyl or C3-C6 cycloalkyl, with a hydrazine or formula wherein R1 has the above cited meaning, a) at a pH value of 6-11 to form 5-hydroxypyrazoles of formula or b) at a pH value of 11-14 to form 3-hydroxypyrazoles of formula (II).

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