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    31.
    发明专利
    未知

    公开(公告)号：DK95588D0

    公开(公告)日：1988-02-24

    申请号：DK95588

    申请日：1988-02-24

    Applicant: HOECHST AG

    Inventor： PAPENFUHS THEODOR ,  DAUB WOLFGANG

    IPC: C07C231/00 ,  C07C233/02 ,  C07C233/16 ,  C07C235/74 ,  C07C255/49 ,  C07C255/52 ,  C07C303/40 ,  C07C309/51 ,  C07C311/15 ,  C07D213/75 ,  C07D215/38 ,  C07D217/22 ,  C07C103/34

    Abstract: Acetoacetylarylamides or -heteroarylamides of deactivated aromatic compounds or heteroaromatic compounds are prepared by reacting 1 mole of an amine of the formula in which X and Y in each case represent CH or one of the two ring members X and Y represents a nitrogen atom, R represents a hydrogen or halogen atom, an alkyl, beta -hydroxyethyl, benzyl or optionally substituted phenyl group, and A represents a fused benzene ring, where the isocyclic or heterocyclic six-membered ring is substituted by 1 or 2 further substituents and the benzene ring A can be substituted by 1 to 3 substituents, with 1 to 1.2 moles of diketene at temperatures from 20 to 100 DEG C in glacial acetic acid in the presence of 1 to 20 mol per cent of a basic catalyst such as tertiary amine, fluoride, acetate, trifluoromethanesulphonate, trifluoroacetate, benzoate, o-, m-, p-alkyl-C1-C4-benzoate, o-, m-, p-alkoxy-C1-C4-benzoate or o-, m-, p-di(alkyl-C1-C4-amino)benzoate, relative to the amine, where the substituent is converted into the group.

    WATER-INSOLUBLE DISAZO METHINE COMPOUNDS
    32.
    发明专利
    WATER-INSOLUBLE DISAZO METHINE COMPOUNDS 未知

    公开(公告)号：AU1281576A

    公开(公告)日：1977-10-13

    申请号：AU1281576

    申请日：1976-04-08

    Applicant: HOECHST AG

    Inventor： PAPENFUHS THEODOR ,  VOLK HEINRICH

    IPC: C08K5/00 ,  C09B55/00 ,  D06P1/13

    Abstract: New water-insoluble compounds have been found of the formula (I), wherein n is 1, 2 or 3, each R, different or the same, is halogen, lower alkyl, lower alkoxy, phenoxy, phenoxy substituted by halogen, lower alkyl or lower alkoxy, or is hydroxy, cyano, trifluoromethyl, carboxy, lower carbalkoxy or lower alkanoyl or benzoyl or benzoyl substituted by halogen, lower alkyl or lower alkoxy, and Z is hydrogen, halogen, lower alkoxy, nitro or cyano, which are well suitable as pigments for dyeing polymer masses, lacquers, caoutchouc, synthetic leather or spin-dyeing viscose or cellulose acetate, for paper and printing pastes. The dyeings obtained with them are excellently fast to light, weather and organic solvents and to the action of heat and are distinguished by a high tinctorial strength, good transparency and very clear shades.

    N'-SUBSTITUTED N-AMINO-3,4,5,6,-TETRAFLUOROPHTHALIMIDES, ANDPROCESSES FOR THEIR PREPARATION
    33.
    发明专利
    N'-SUBSTITUTED N-AMINO-3,4,5,6,-TETRAFLUOROPHTHALIMIDES, ANDPROCESSES FOR THEIR PREPARATION 未知

    公开(公告)号：CA2067074C

    公开(公告)日：2003-06-24

    申请号：CA2067074

    申请日：1992-04-24

    Applicant: HOECHST AG

    Inventor： PAPENFUHS THEODOR ,  PFIRMANN RALF

    IPC: C07C63/68 ,  C07C63/70 ,  C07D209/48 ,  C07C51/00

    Abstract: N'-substituted N-amino-3,4,5,6-tetrafluorophthalimides, and processes for their preparation Compounds of the formula (see figure I) in which X is the radical (see figure II) where R1 and R2 are in each case a hydrogen atom, an alkyl-(C1-C10) group, aryl group, alkyl(C1-C6)-CO group or aryl-CO group, where the aryl or aryl-CO group in the case of R1 and R2 can be substituted on the aromatic ring by fluorine and/or chlorine atoms and/or alkyl(C1-C4) groups, or R1 and R2 together are a phthaloyl radical which can be substituted on the aromatic ring by 4 chlorine atoms or 4 fluorine atoms, or where X is the radical (see figure III) which can be substituted on the aromatic ring by fluorine and/or chlorine atoms and/or alkyl(C1-C4) groups, and processes for their preparation.

    PROCESS FOR THE PREPARATION OF 4-ALKYL-3-CHLOR-1-(ALKYLSULFONYL)-BENZENE
    34.
    发明专利
    PROCESS FOR THE PREPARATION OF 4-ALKYL-3-CHLOR-1-(ALKYLSULFONYL)-BENZENE 未知

    公开(公告)号：HU214220B

    公开(公告)日：1998-01-28

    申请号：HU9400950

    申请日：1994-04-01

    Applicant: HOECHST AG

    Inventor： FOLZ GEORG ,  PAPENFUHS THEODOR

    IPC: C07C313/04 ,  C07C315/00 ,  C07C315/04 ,  C07C317/14 ,  C07C317/44 ,  C07C313/02 ,  C07C309/87

    Abstract: Process for the preparation of 4-alkyl-3-chloroalkylsulphonylbenzenes of the formula (1) in which R and R are identical or different and denote (C1-C4)-alkyl, by chlorinating p-alkylbenzenesulphonyl chloride of the formula (2) in which R has the abovementioned meaning, with at least one mole of chlorine in the presence of a chlorine donor at temperatures of approximately 50 to approximately 100@C to give a compound of the general formula (3) in which R has the abovementioned meaning, and this compound is subsequently reduced using sodium hydrogen sulphite or sodium sulphite in an aqueous medium at temperatures of approximately 40 to approximately 90@C to give a compound of the general formula (4) in which R has the abovementioned meaning, and this compound is subjected to a condensation reaction with an alpha -halocarboxylic acid of the general formula (5) in which R is hydrogen or (C1-C3)-alkyl and X is bromine or chlorine, or one of its salts, to give a 4-alkyl-3-chlorobenzenesulphonylcarboxylic acid of the general formula (6) in which R and R have the abovementioned meaning, or one of its salts, and this compound is subsequently decarboxylated by heating. The invention furthermore relates to compounds of the formula (1) in which R is (C1-C4)-alkyl and R is (C2-C4)-alkyl or R is (C2-C4)-alkyl and R is (C1-C4)-alkyl, and to compounds of the formula (4) in which R is (C1-C4)-alkyl, and to compounds of the formula (6) in which R is hydrogen or (C1-C3)-alkyl and R is (C1-C4)-alkyl, and to the corresponding alkali metal salts.

    Process for the preparation of quinazoline derivatives.
    37.
    发明专利
    Process for the preparation of quinazoline derivatives. 未知

    公开(公告)号：ZA967365B

    公开(公告)日：1997-02-28

    申请号：ZA967365

    申请日：1996-08-30

    Applicant: HOECHST AG

    Inventor： PFIRMANN RALF ,  PAPENFUHS THEODOR ,  KRAUSE STEFAN ,  NEUMANN-GRIMM DORIS

    IPC: C07D239/96 ,  C07D

    Abstract: PCT No. PCT/EP96/03632 Sec. 371 Date May 22, 1998 Sec. 102(e) Date May 22, 1998 PCT Filed Aug. 19, 1996 PCT Pub. No. WO97/08154 PCT Pub. Date Mar. 6, 1997A process for producing 1,2,3,4-tetrahydro-2,4-dioxo-quinazoline-1-yl acetic acid derivatives of the formula (I) in which R1, R2, R3 and R4 are mutually independently hydrogen, halogen, OH, NO2, (C1-C6) alkoxy, (C1-C6) alkyl, halogen-substituted (C1-C6) alkyl, R5 is hydrogen, (C1-C6) alkyl, phenyl where the alkyl or phenyl radical may also be substituted by halogen atoms; in which an anthranilic acid derivative of formula (II), in which R1 to R5 have the above meaning and R6 is hydrogen, (C1-C6) alkyl or phenyl, where the alkyl or phenyl radical may also be substituted by halogen atoms, is reacted with a metal cyanate and hydrogen chloride in the presence of an inert solvent.

    PROCESS FOR THE PREPARATION OF SALTS OF SUBSTITUTED OR UNSUBSTITUTED PHTHALIC ACIDS
    39.
    发明专利
    PROCESS FOR THE PREPARATION OF SALTS OF SUBSTITUTED OR UNSUBSTITUTED PHTHALIC ACIDS 未知

    公开(公告)号：CA2175527A1

    公开(公告)日：1996-11-03

    申请号：CA2175527

    申请日：1996-05-01

    Applicant: HOECHST AG

    Inventor： PFIRMANN RALF ,  PAPENFUHS THEODOR

    IPC: C07C51/06 ,  C07C51/00 ,  C07C51/41 ,  C07C51/54 ,  C07C63/68 ,  C07C63/72 ,  C07C65/03 ,  C07C227/18 ,  C07C65/21 ,  C07C229/54

    Abstract: The present invention relates to a process for the preparation of salts of substituted or unsubstituted phthalic acids, by reacting a compound of the formula (1) in which R1, R2, R3 and R4 are identical or different and are H, F, Cl, Br, CF3, OH, an alkoxy or alkyl radical in each case having 1 to 4 carbon atoms, or a radical -NR7R8, in which R7 and R8 are identical or different and are H, an alkyl radical having 1 to 4 carbon atoms, or a phenyl radical, R5 and R6 are identical or different and are H, a -CO- alkyl group having 1 to 6 carbon atoms in the alkyl radical, or a benzoyl group, or R5 and R6 together form a radical of the formula (2) in which R9, R10, R11 and R12 are identical or different and are H, F, Cl, Br, CF3, OH, an alkoxy or alkyl radical in each case having 1 to 4 carbon atoms, or a radical -NR7R8, in which R7 and R8 are identical or different and are H, an alkyl radical having 1 to 4 carbon atoms, or a phenyl radical, with water, a water-soluble base and an oxidizing agent at a temperature of -10 to 150.degree.C in the presence or absence of a water-insoluble solvent inert under the reaction conditions.

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