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    71.
    发明专利
    未知

    公开(公告)号：PT847384E

    公开(公告)日：2000-09-29

    申请号：PT96929327

    申请日：1996-08-26

    Applicant: BASF AG

    Inventor： LORENZ GISELA ,  ARMERMANN EBERHARD ,  KARL EICKEN DR ,  OLIVER WAGNER DR ,  STRATHMANN SIEGFRIED ,  DITRICH KLAUS ,  WETTERICH FRANK

    IPC: C07C269/04 ,  A01N47/12 ,  C07C269/06 ,  C07C271/22

    Abstract: PCT No. PCT/EP96/03755 Sec. 371 Date Feb. 17, 1998 Sec. 102(e) Date Feb. 17, 1998 PCT Filed Aug. 26, 1996 PCT Pub. No. WO97/08138 PCT Pub. Date Mar. 6, 1997Carbamoylcarboxamides of the general formula I (R1=unsubstituted or substituted alkyl, alkenyl, alkynyl; R2=hydrogen, halogen, cyano, nitro, or unsubstituted or substituted alkyl, alkoxy, alkylthio, or an unsubstituted or substituted phenyl group which is bonded via oxygen or sulfur) and compositions comprising them, processes for their preparation, and the use of the compounds I and of the compositions.

    72.
    发明专利
    未知

    公开(公告)号：DE19904207A1

    公开(公告)日：2000-08-10

    申请号：DE19904207

    申请日：1999-02-03

    Applicant: BASF AG

    Inventor： DITRICH KLAUS ,  BLOCK ULRICH

    IPC: C07B61/00 ,  C07C51/48 ,  C07C59/125 ,  C07C67/08 ,  C07C67/54 ,  C07C69/708 ,  C07C67/20 ,  C07C69/02 ,  C07C69/63 ,  C07C69/675

    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: R = F, Cl, -OH, -OC1-C10 alkyl, R = H, C1-C10 alkyl, R = C1-C8 alkyl, Q = -OH, -O K , wherein K is an alkali cation or alkaline earth cation, n = 0, 1 or 2.

    METHOD FOR THE PRODUCTION OF ESTERS
    73.
    发明专利
    METHOD FOR THE PRODUCTION OF ESTERS 未知

    公开(公告)号：CA2361645A1

    公开(公告)日：2000-08-10

    申请号：CA2361645

    申请日：2000-01-29

    Applicant: BASF AG

    Inventor： DITRICH KLAUS ,  BLOCK ULRICH

    IPC: C07B61/00 ,  C07C51/48 ,  C07C59/125 ,  C07C67/08 ,  C07C67/54 ,  C07C69/708

    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 azeotropi c distillation. Steps (a) and (b) can be carried out separately with respect t o 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, -OH, -OC1-C10 alkyl, R2 = H, C1-C10 alkyl, R3 = C1-C8 alkyl, Q = -O H, -O- K+, wherein K+ is an alkali cation or alkaline earth cation, n = 0, 1 or 2.

    74.
    发明专利
    未知

    公开(公告)号：DE19727517A1

    公开(公告)日：1999-01-07

    申请号：DE19727517

    申请日：1997-06-30

    Applicant: BASF AG

    Inventor： STUERMER RAINER ,  DITRICH KLAUS ,  SIEGEL WOLFGANG

    IPC: C12P13/00 ,  C07C229/48 ,  C07C233/63 ,  C07C235/12 ,  C07C235/14 ,  C07C321/06 ,  C12P13/04 ,  C12P41/00 ,  C07C233/52 ,  C07C229/36 ,  C07C229/08 ,  C12P13/02 ,  C07B57/00 ,  C07B43/06 ,  C07C227/20 ,  C07C227/34 ,  C07C231/16

    Abstract: Production of acylated amino acid esters comprises acylating an amino acid ester with a carboxylic acid ester, which carries a halo, N, O or S atom in the neighbourhood of the carbonyl group of the acid component, in the presence of an amidase, protease, esterase or lipase as catalyst. Also claimed are (1) the production of optically active amino acid esters by: (a) enantioselectively acylating a racemic amino acid ester with a carboxylic acid ester, which carries a halo, N, O or S atom in the neighbourhood of the carbonyl group of the acid component, in the presence of an amidase, protease, esterase or lipase as catalyst; (b) separating the mixture obtained into optically active amino acid ester and optically active N-acyl-amino acid ester; and optionally (c) converting the optically active N-acyl-amino acid ester into the opposite amino acid ester enantiomer by amide cleavage; and (2) optically active amino acid esters of formula (I) and optically active N-acyl-amino acid esters of formula (II ) in which the NH2 and COOCH3 (or amino and COOR groups) are cis or trans to one another: R = 1-10C alkyl; 1-4C alkoxy; OH; NH2; halo; or Ar; R = H or 1-10C alkyl; X = halo; OR ; SR ; or NR R ; R and R = H; 1-10C alkyl; or Ar; R = 1-10C alkyl or Ar; Ar = aryl optionally substituted by NH2, OH, 1-4C alkyl, 1-4C alkoxy or halo; i = 0-4; m = 0-2; n = 1-3.

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