PROCEDIMIENTO PARA LA OBTENCION DE CLORUROS DEL ACIDO O-CLOROMETILBENZOICO.

    公开(公告)号:ES2222929T3

    公开(公告)日:2005-02-16

    申请号:ES00977582

    申请日:2000-11-27

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de cloruros del ácido o-clorometilbenzoilo de la **fórmula**, en la que R1 hasta R4 pueden ser iguales o diferentes y significan hidrógeno, alquilo con 1 a 4 átomos de carbono, halógeno o triflúormetilo, mediante reacción de lactonas benzocondensadas, en la que R1 hasta R4 tienen el significado anteriormente indicado, con cloruro de tionilo, caracterizado porque la reacción se lleva a cabo en presencia de cantidades catalíticas de un ácido de Lewis y de cantidades catalíticas de un derivado de fosfina, en la que R¿ hasta R¿- pueden ser iguales o diferentes y significan alquilo con 1 a 10 átomos de carbono o fenilo insubstituido o substituido por alquilo con 1 a 4 átomos de carbono, el índice n significa 0 o 1 y X significa oxígeno o dos átomos de cloro enlazados con un enlace sencillo.

    103.
    发明专利
    未知

    公开(公告)号:DK1265837T3

    公开(公告)日:2004-10-25

    申请号:DK00977582

    申请日:2000-11-27

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing o-chloromethyl benzoic acid chlorides of formula (I), in which R 1 to R 4 can be the same or different and represent hydrogen C 1 -C 4 alkyl, halogen or trifluoromethyl, by reaction benzo condensed lactones of formula (II), in which R 1 to R 4 have the above-mentioned meaning, with thionyl chloride. The inventive method is characterized in that the reaction is carried out in the presence of catalytic quantities of a Lewis acid and in the presence of catalytic quantities of a phosphine derivative.

    104.
    发明专利
    未知

    公开(公告)号:DK1235780T3

    公开(公告)日:2004-06-21

    申请号:DK00987303

    申请日:2000-11-27

    Applicant: BASF AG

    Abstract: A process for preparing o-chloromethylbenzoyl chlorides of the formula I,in which R to R can be identical or different and are hydrogen, C1-C4-alkyl, halogen or trifluoromethyl, by reacting benzo-fused lactones of the formula II,in which R to R are as defined above, with thionyl chloride, which comprises carrying out the reaction in the presence of catalytic amounts of boric acid, boric anhydride, borate, boronic acid or boronic acid esters and catalytic amounts of a quaternary ammonium salt is described.

    105.
    发明专利
    未知

    公开(公告)号:AT268747T

    公开(公告)日:2004-06-15

    申请号:AT00977582

    申请日:2000-11-27

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing o-chloromethyl benzoic acid chlorides of formula (I), in which R 1 to R 4 can be the same or different and represent hydrogen C 1 -C 4 alkyl, halogen or trifluoromethyl, by reaction benzo condensed lactones of formula (II), in which R 1 to R 4 have the above-mentioned meaning, with thionyl chloride. The inventive method is characterized in that the reaction is carried out in the presence of catalytic quantities of a Lewis acid and in the presence of catalytic quantities of a phosphine derivative.

    BIFUNCTIONAL PHENYLISO(THIO)CYANATES

    公开(公告)号:AU2003287972A1

    公开(公告)日:2004-05-25

    申请号:AU2003287972

    申请日:2003-10-29

    Abstract: Bifunctional phenyl iso(thio)cyanate derivatives (I) are new. Also new are aniline and nitrobenzene derivative intermediates (II) and (V). Bifunctional phenyl iso(thio)cyanate derivatives of formula W=C=N-Ar-CO-NH-SO 2-A (I) are new. W : O or S; Ar : phenylene (optionally substituted by one or more of halo, 1-4C haloalkyl and CN), and A : NH 2 or the residue of a primary or secondary amine. Independent claims are also included for: (a) preparation of (I); (b) new aniline and nitrobenzene derivative intermediates of formulae H 2N-Ar-CO-NH-SO 2-A (II) and O 2N-Ar-CO-NH-SO 2-A (V), and (c) preparation of 4-(sulfamidocarbonyl-phenyl)-1,2,4-triazolinedione derivatives of formula (VI) by reacting an ester of diaza-ester of formula R 4>-NH-NR 3>-C(W')OR' (VII) and cyclizing the obtained urea derivative of formula R'O-C(=W')-N(R 3>)-N(R 4>)-C(=W)-NH-Ar-CO-NH-SO 2-A (VIII). [Image] W' : O or S; R 3>, R 4> : H, CN, NH 2, 1-6C alkyl, 1-6C haloalkyl, 1-6C alkoxy, 1-6C haloalkoxy, 3-7C cycloalkyl, 2-6C alkenyl, 2-6C haloalkenyl, 3-6C alkynyl, benzyl, OR 5> or (1-3C) cyanoalkyl, or R 3> + R 4> : a group completing 4-7 membered heterocyclyl optionally interrupted by S, O, NR 6> or N and optionally substituted by one or more of halo or 1-4C alkyl; R 5> : H, 1-6C alkyl, 1-6C haloalkyl, 3-7C cycloalkyl, 2-6C alkenyl, 3-6C alkynyl, optionally substituted phenyl or optionally substituted benzyl; R 6> : H, 1-6C alkyl, 3-6C alkenyl or 3-6C alkynyl, and R' : 1-4C alkyl. ACTIVITY : Herbicide. MECHANISM OF ACTION : None given.

    107.
    发明专利
    未知

    公开(公告)号:BR0109927A

    公开(公告)日:2003-05-27

    申请号:BR0109927

    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%.

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