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    11.
    发明专利
    未知

    公开(公告)号：DE19642541A1

    公开(公告)日：1998-04-16

    申请号：DE19642541

    申请日：1996-10-15

    Applicant: BASF AG

    Inventor： VOIT GUIDO DR ,  DERNBACH MATTHIAS DR ,  BECK KARL ,  HOLDERBAUM MARTIN DR ,  WEYER HANS-JUERGEN DR

    IPC: C07C249/02 ,  C07C251/24 ,  C07C249/14

    Abstract: Water and ammonia are removed from crude benzophenone-imines obtained by the catalytic reaction of ammonia with benzophenones of formula (I), in which R , R = (a) halogen, hydroxyl, nitro or amino groups, (b) 1-12C linear, branched or cyclic alkyl or alkoxy, optionally substituted with 6-10C aryl, F, Cl or Br, (c) 6-10C aryl or aryloxy, optionally substituted with 1-12C alkyl or alkoxy, (d) heteroalkyl groups comprising alkyl groups as above with in-chain O, S and/or N atom(s), or (e) heteroaryl groups with 5-10 ring atoms containing 1-3 O, S and/or N atoms; m, n = 0-5. The process comprises removing the ammonia by distillation and removing the water by distillation or with a drying agent.

    14.
    发明专利
    未知

    公开(公告)号：DE59709137D1

    公开(公告)日：2003-02-20

    申请号：DE59709137

    申请日：1997-10-13

    Applicant: BASF AG

    Inventor： VOIT DR ,  DERNBACH DR ,  BECK KARL ,  HOLDERBAUM DR ,  WEYER DR

    IPC: C07C249/02 ,  C07C251/24

    Abstract: Water and ammonia are removed from crude benzophenone-imines obtained by the catalytic reaction of ammonia with benzophenones of formula (I), in which R , R = (a) halogen, hydroxyl, nitro or amino groups, (b) 1-12C linear, branched or cyclic alkyl or alkoxy, optionally substituted with 6-10C aryl, F, Cl or Br, (c) 6-10C aryl or aryloxy, optionally substituted with 1-12C alkyl or alkoxy, (d) heteroalkyl groups comprising alkyl groups as above with in-chain O, S and/or N atom(s), or (e) heteroaryl groups with 5-10 ring atoms containing 1-3 O, S and/or N atoms; m, n = 0-5. The process comprises removing the ammonia by distillation and removing the water by distillation or with a drying agent.

    Method for producing 4,4' dihalogendiphenylsulfone
    15.
    发明专利
    Method for producing 4,4' dihalogendiphenylsulfone 未知

    公开(公告)号：AU8437998A

    公开(公告)日：1999-01-04

    申请号：AU8437998

    申请日：1998-06-10

    Applicant: BASF AG

    Inventor： BECKMANN STEFAN ,  REICHELT HELMUT ,  BECK KARL ,  FRIEDRICH KLAUS ,  GEHRER EUGEN ,  PLESNIVY THOMAS ,  OPPER WALTER

    IPC: B01J21/16 ,  B01J23/28 ,  B01J23/30 ,  B01J23/888 ,  B01J23/889 ,  C07C315/00 ,  C07C317/14

    Abstract: The invention relates to a method for producing 4,4'-dihalogendiphenylsulfone by reacting halogenated benzene with 4-halogenphenylsulfonyl chloride in a liquid phase at high temperature, in the presence of a solid catalyst having acid centers. The method is characterized in that the reaction of 4-halogenphenylsulfonyl chloride with formula (I), in which X is chlorine, bromine or fluorine, with chlorobenzene, bromobenzene, or fluorobenzene, is carried out in the presence of a catalyst which is selected from one of the following groups: K1) catalysts consisting of essentially stratified silicates not having Lewis acids and having proton-saturated negative layer loads, or containing these as a basic component; K2) catalysts consisting of zeolites in the acid H form, or containing these as a basic component; and K3) catalysts consisting of mixed oxides having acidic centres, or containing these as basic components. The mixed oxides consist of a combination of (a) titanium, circonium, hafnium, tin, iron or Cr(III) oxides on the one hand, and (b) vanadium, chromium(VI), molybdenum, wolfram or scandium oxides on the other hand; or the mixed oxides are sulfatized or phosphatized oxides of the group (a), and said mixed oxides are calcined after combination, at temperatures of 450 to 800 DEG C.

    16.
    发明专利
    未知

    公开(公告)号：TR199701451T1

    公开(公告)日：1998-03-21

    申请号：TR9701451

    申请日：1996-05-24

    Applicant: BASF AG

    Inventor： HOLDERBAUM MARTIN ,  BECK KARL ,  AUMUELLER ALEXANDER ,  WITZEL TOM ,  VOIT GUIDO

    IPC: C07C253/30 ,  C07C255/41

    Abstract: PCT No. PCT/EP96/02238 Sec. 371 Date Dec. 1, 1997 Sec. 102(e) Date Dec. 1, 1997 PCT Filed May 24, 1996 PCT Pub. No. WO96/38409 PCT Pub. Date Dec. 5, 1996A process for preparing 2-cyano-3,3-diarylacrylic esters of the general formula I where R1 and R2 are hydrogen, C1-C12-alkyl groups, C-C12-alkoxy groups or di(C1-C4-alkyl)amino groups and R3 is a C4-C18-alkyl group which can be interrupted by ether-functional oxygen atoms, by reacting a benzophenone imine of the general formula II with a cyanoacetic ester of the general formula III wherein the reaction is carried out at from 20 to 60 DEG C. and, during this, the liberated ammonia is continuously removed from the reaction mixture with the aid of a stream of gas or by reducing the pressure to from 900 to 100 mbar.

    Process for producing 2-cyano-3,3-diary acrylic acid esters
    17.
    发明专利
    Process for producing 2-cyano-3,3-diary acrylic acid esters 未知

    公开(公告)号：AU6000096A

    公开(公告)日：1996-12-18

    申请号：AU6000096

    申请日：1996-05-24

    Applicant: BASF AG

    Inventor： HOLDERBAUM MARTIN ,  BECK KARL ,  AUMUELLER ALEXANDER ,  WITZEL TOM ,  VOIT GUIDO

    IPC: C07C253/30 ,  C07C255/41

    Abstract: PCT No. PCT/EP96/02238 Sec. 371 Date Dec. 1, 1997 Sec. 102(e) Date Dec. 1, 1997 PCT Filed May 24, 1996 PCT Pub. No. WO96/38409 PCT Pub. Date Dec. 5, 1996A process for preparing 2-cyano-3,3-diarylacrylic esters of the general formula I where R1 and R2 are hydrogen, C1-C12-alkyl groups, C-C12-alkoxy groups or di(C1-C4-alkyl)amino groups and R3 is a C4-C18-alkyl group which can be interrupted by ether-functional oxygen atoms, by reacting a benzophenone imine of the general formula II with a cyanoacetic ester of the general formula III wherein the reaction is carried out at from 20 to 60 DEG C. and, during this, the liberated ammonia is continuously removed from the reaction mixture with the aid of a stream of gas or by reducing the pressure to from 900 to 100 mbar.

    PROCESS FOR PRODUCING 2-CYANO-3,3-DIARY ACRYLIC ACID ESTERS
    18.
    发明专利
    PROCESS FOR PRODUCING 2-CYANO-3,3-DIARY ACRYLIC ACID ESTERS 未知

    公开(公告)号：CA2218813A1

    公开(公告)日：1996-12-05

    申请号：CA2218813

    申请日：1996-05-24

    Applicant: BASF AG

    Inventor： AUMUELLER ALEXANDER ,  VOIT GUIDO ,  BECK KARL ,  HOLDERBAUM MARTIN ,  WITZEL TOM

    IPC: C07C253/30 ,  C07C255/41 ,  C07C255/42

    Abstract: A process for producing 2-cyano-3,3-diary acrylic acid esters of general formula (I) in which R1 and R2 are hydrogen, C1-C12 alkoxy groups or di-(C1-C4 alkyl) amino groups and R3 is a C4-C18 alkyl group which may be interrupted by oxygen atoms in the ether function, by the reaction of benzophenonimine of general formula (II) with a cyanic acid ester of general formula (III), in which the reaction is conducted at 20 to 60 ~C and the ammonia released is continuously removed from the reaction mixture with the aid of a stream of gas or by reducing the pressure to 900 to 100mbar.

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