141.
    发明专利
    未知

    公开(公告)号:DE59306918D1

    公开(公告)日:1997-08-21

    申请号:DE59306918

    申请日:1993-08-10

    Applicant: BASF AG

    Abstract: Process for the preparation of 3-(2'-acyloxyethyl)-dihydro-2(3H)furanones of the general formula I in which R denotes C1- to C12-alkyl, C5- to C8-cycloalkyl, aryl C7- to C12-aralkyl or C7- to C12-alkylaryl, by reacting 3-(2'-oxyethyl)-dihydro-2(3H)furanones of the general formula II in which R denotes C1- to C12-alkyl, C5- to C8-cycloalkyl, aryl, C7- to C12-aralkyl or C7- to C12-alkylaryl, with carboxylic acids, carboxylic anhydrides and/or carbonyl halides in the presence of acidic catalysts at temperatures from 50 to 250 DEG C and pressures from 0.1 to 100 bar.

    142.
    发明专利
    未知

    公开(公告)号:ES2101891T3

    公开(公告)日:1997-07-16

    申请号:ES93103911

    申请日:1993-03-11

    Applicant: BASF AG

    Abstract: Isoxazole-3-carboxamido-4-carboxylates of the formula I … … in which the substituents have the following meanings: …… R is hydrogen, alkyl, cycloalkyl, phenyl or a 5- to 6-membered heterocyclic radical, it being possible for the organic radicals to have substituents which are inert under the reaction conditions; … R is alkyl, cycloalkyl, benzyl or a C3-C6-alkenyl radical; … R is hydrogen, alkyl or cycloalkyl and … R is an aliphatic, cycloaliphatic or optionally substituted phenyl radical or R together with R is a 4- to 7-membered alkylene chain which can be interrupted by oxygen, sulphur or N-methyl, … are prepared by selective amidation of an isoxazole-3,4-dicarboxylic diester of the formula II … … in which R has the meaning of R and is identical with, or different from, R .

    146.
    发明专利
    未知

    公开(公告)号:DE59106349D1

    公开(公告)日:1995-10-05

    申请号:DE59106349

    申请日:1991-06-08

    Applicant: BASF AG

    Abstract: Dicarboxylic acid imides of the formulae Ia, Ib and Ic … … in which the substituents have the following meaning:… X is oxygen or sulphur;… R is hydrogen; halogen; cyano; alkyl; cycloalkyl; alkenyl; alkynyl; alkoxy; alkenyloxy; alkynyloxy; alkylthio; halogenoalkoxy; halogenoalkylthio; alkylsulphonyl; halogenoalkylsulphonyl; phenyl; phenylalkyl; phenoxy or phenylthio, a 5- to 6-membered saturated or aromatic heterocyclic radical containing one or two hetero atoms selected from the group comprising oxygen, sulphur and nitrogen; it being possible for the said organic radicals to be further substituted;… R is hydrogen; hydroxyl; alkoxy; alkyl; cycloalkyl; alkenyl; alkynyl; di-C1-C4-alkylamino; a 5- to 6-membered heterocyclic saturated or aromatic radical with one or two hetero atoms selected from the group comprising oxygen, sulphur or nitrogen; phenyl; naphthyl; it being possible for the said organic radicals to be further substituted,… and plant-compatible salts of the dicarboxylic acid imides I excepting 3-methylisoxazole-4,5-dicarboximide and thiazole-4,5-dicarboximides in which R is phenyl when R is methyl or 2-thiazolyl, and herbicidal compositions containing these compounds.

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