HERBICIDE COMPOSITIONS CONTAINING AMIDES OF OXAZOL- OR THIAZOL-CARBOXYLIC ACIDS AND PROCESS FOR PRODUCING THE ACTIVE COMPONENTS

    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

    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 THE PRODUCTION OF ESTERS
    116.
    发明专利

    公开(公告)号:CA2361645C

    公开(公告)日:2009-12-22

    申请号:CA2361645

    申请日:2000-01-29

    Applicant: BASF AG

    Abstract: The invention relates to a novel method for producing esters of general formula (I) from compounds of general formula (II) which are contained in aqueous solutions. The inventive method is characterized by the following steps: a) extracting the compounds of general formula (II) directly or after release from their salts in the presence of a C1-C8 alcohol and a water-immiscible solvent and b) esterification with the C1-C8 alcohol in the presence of a catalyst and an entrainer under the conditions of an azeotropic distillation. Steps (a) and (b) can be carried out separately with respect to time and space or in a successive continuous or discontinuous sequence. The variables and substituents in formulae (I, II) have the following meanings: R1 = F, Cl, -O H, -OC1-C10 alkyl, R2 = H, C1-C10 alkyl, R3 = C1-C8 alkyl, Q = -OH, -O- K+, wherein K+ is an alkali cation or alkaline earth cation, n = 0, 1 or 2.

    DISOCIACION DE RACEMATOS DE AMINAS PRIMARIAS CATALIZADA POR VIA ENZIMATICA.

    公开(公告)号:ES2221423T3

    公开(公告)日:2004-12-16

    申请号:ES99941616

    申请日:1999-08-13

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de aminas primarias con actividad óptica de la fórmula 2 en la que significan n = 0 o 1 R4, R5 independientemente entre sí, H, alquilo con 1 a 8 átomos de carbono o fenilo, R6 = alquilo con 1 a 6 átomos de carbono o bencilo, mediante a) reacción de las aminas primarias con un éster de la fórmula 1 en la que significan m = 0 o 1, R1 = alquilo con 6 a 20 átomos de carbono ramificado o no ramificado, o heteroalquilo con 6 a 20 átomos de esqueleto, pudiendo estar substituido el resto alquilo o heteroalquilo, independientemente entre sí, por 1 a 5 átomos de halógeno, y/o un grupo oxo, R2 = alquilo con 1 a 8 átomos de carbono o fenilo, R3 = H, alquilo con 1 a 4 átomos de carbono, en presencia de una lipasa, y subsiguiente b) separación de la amina acilada por vía enantioselectiva y de la amina no transformada.

    119.
    发明专利
    未知

    公开(公告)号:AT267874T

    公开(公告)日:2004-06-15

    申请号:AT99941616

    申请日:1999-08-13

    Applicant: BASF AG

    Abstract: The present invention relates to a process for resolving racemates of alkoxy-substituted primary amines by reacting with an ester in the presence of a lipase and subsequently separating the optically active amide which is formed from the unreacted optically active amine. This is followed where appropriate by hydrolysis of the optically active amide, separation of the optically active amine produced thereby from the acid from which the ester is derived, racemization and recycling of the unwanted enantiomer of the amine, and esterification and recycling of the acid.

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