METHOD FOR PRODUCING POLYISOBUTENES

    公开(公告)号:HU0300675A2

    公开(公告)日:2003-08-28

    申请号:HU0300675

    申请日:2001-08-11

    Applicant: BASF AG

    Abstract: A process for the preparation of polyisobutylenes by cationic polymerization of isobutylene or isobutylene-containing hydrocarbon streams in the liquid phase in the presence of boron trifluoride acting as catalyst, the catalytic activity of boron trifluoride being partially or completely stopped by means of a solid deactivator following a given timelapse, which deactivator is an inorganic, anhydrous or hydrous oxygen compound of aluminum which is insoluble in the reaction mixture.

    PROCESS FOR PREPARING DERIVATIVE OF HALOMETHYLBENZOXOCYANIDE

    公开(公告)号:CZ146797A3

    公开(公告)日:1998-02-18

    申请号:CZ146797

    申请日:1995-11-14

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/04463 Sec. 371 Date May 6, 1997 Sec. 102(e) Date May 6, 1997 PCT Filed Nov. 14, 1995 PCT Pub. No. WO96/16023 PCT Pub. Date May 30, 1996Halomethylbenzoyl cyanides I PH-CO-CN (I) where Ph is phenyl which is substituted by chloromethyl or bromomethyl and may cary 1-4 other rradicals, are prepared from halomethylbenzoyl chlorides II PH-CO-Cl (II), by reacting II with a cyanide-donating compound in the presence of a Lewis acid, if required in an inert organic solvent or diluent, and then isolating the product. The halomethylbenzoyl cyanides I are important intermediates for synthesizing crop protection agents.

    3.
    发明专利
    未知

    公开(公告)号:DK0619300T3

    公开(公告)日:1997-02-24

    申请号:DK94104664

    申请日:1994-03-24

    Applicant: BASF AG

    Abstract: A process for preparing halomethylbenzoyl cyanides I Ph-CO-CNI (Ph=phenyl radical substituted by chloromethyl or bromomethyl which, if desired, can additionally carry 1-4 further radicals) by reacting halomethylbenzoyl chlorides II Ph-CO-ClII with an alkali metal cyanide or transition metal cyanide, if appropriate in an organic diluent, and novel halomethylbenzoyl cyanides I' I' (X=halogen, C1-C4-alkyl, C1-C4-alkoxy, CF3, C1-C5-alkyl-(C1-C5-alkyl)hydroxyimino or C1-C5-alkyl-(C2-C5-alkenyl)hydroxyimino; m=0 to 4 and Y=chloromethyl or bromomethyl) are described. The halomethylbenzoyl cyanides I are important intermediates for the synthesis of plant protection agents.

    4.
    发明专利
    未知

    公开(公告)号:ES2076650T3

    公开(公告)日:1995-11-01

    申请号:ES92118865

    申请日:1992-11-04

    Applicant: BASF AG

    Abstract: A process for the preparation of aromatic aryl chloroformates of the general formula I (I) in which Ar denotes an aryl radical optionally mono- to penta-substituted by C1-C20-alkyl, C2-C20-alkenyl, C3-C8-alkyl-cycloalkyl, C1-C20-haloalkyl, C1-C20-alkoxy, C1-C20-alkylthio, halo, cyano, C2-C20-alkylcarbonyloxy, C3-C20-carboalkoxy, formyl, C2-C20-dialkylamino, aryl, aryloxy, arylthio, aroyl, C7-C20-aralkyl, C7-C20-aralkoxy, arylsulfonyl and/or C7-C20-aralkylthio and/or optionally mono- or di-substituted by chloroformyl and/or nitro, from phosgene and phenols of the general formula II Ar-OH(II), in which Ar has the meanings stated above and optionally carries one or two hydroxy groups, wherein the reaction is carried out at a temperature of from 60 DEG to 180 DEG C. in the presence of an organic phosphorus compound of the general formula III (III) in which at least one of the radicals R1, R2, and R3 stands, irrespective of the others, for -NR5R6 or -O-R7 and R1, R2, R3, R4, R5, R6, R7 independently denote C1-C20-alkyl, C2-C20-alkenyl, halo, aryl, or C7-C20-aralkyl and R1 and R2, R1 and R3, R2 and R3, and R5 and R6 each denote a saturated or unsaturated C2-C5-alkylene chain, X denotes hydroxy, aryloxy, halo, or an inorganic or organic acid anion, R4 denotes hydrogen or C1-C20-alkyl or halo when X stands for halo, aryloxy, or aralkoxy, n is equal to 0 or 1, and R4 and X can together denote oxygen or sulfur.

    5.
    发明专利
    未知

    公开(公告)号:DE59203671D1

    公开(公告)日:1995-10-19

    申请号:DE59203671

    申请日:1992-11-04

    Applicant: BASF AG

    Abstract: A process for the preparation of aromatic aryl chloroformates of the general formula I (I) in which Ar denotes an aryl radical optionally mono- to penta-substituted by C1-C20-alkyl, C2-C20-alkenyl, C3-C8-alkyl-cycloalkyl, C1-C20-haloalkyl, C1-C20-alkoxy, C1-C20-alkylthio, halo, cyano, C2-C20-alkylcarbonyloxy, C3-C20-carboalkoxy, formyl, C2-C20-dialkylamino, aryl, aryloxy, arylthio, aroyl, C7-C20-aralkyl, C7-C20-aralkoxy, arylsulfonyl and/or C7-C20-aralkylthio and/or optionally mono- or di-substituted by chloroformyl and/or nitro, from phosgene and phenols of the general formula II Ar-OH(II), in which Ar has the meanings stated above and optionally carries one or two hydroxy groups, wherein the reaction is carried out at a temperature of from 60 DEG to 180 DEG C. in the presence of an organic phosphorus compound of the general formula III (III) in which at least one of the radicals R1, R2, and R3 stands, irrespective of the others, for -NR5R6 or -O-R7 and R1, R2, R3, R4, R5, R6, R7 independently denote C1-C20-alkyl, C2-C20-alkenyl, halo, aryl, or C7-C20-aralkyl and R1 and R2, R1 and R3, R2 and R3, and R5 and R6 each denote a saturated or unsaturated C2-C5-alkylene chain, X denotes hydroxy, aryloxy, halo, or an inorganic or organic acid anion, R4 denotes hydrogen or C1-C20-alkyl or halo when X stands for halo, aryloxy, or aralkoxy, n is equal to 0 or 1, and R4 and X can together denote oxygen or sulfur.

    Process for hydrogenating aromatic compounds and a catalyst for making such hydrogenation

    公开(公告)号:CZ293839B6

    公开(公告)日:2004-08-18

    申请号:CZ74198

    申请日:1996-09-11

    Applicant: BASF AG

    Abstract: In the present invention, there is disclosed a process for catalytically hydrogenating aromatic compounds in which at least one amino group is bonded to an aromatic nucleus, which process comprises bringing at least one of said aromatic compounds as the reactant in a liquid phase into contact with free hydrogen in the presence of a carrier supported metal catalyst consisting essentially of ruthenium and optionally at least one additional metal of subgroup I, VII or VIII of the Periodic Table or mixtures thereof, said metal catalyst being applied to a carrier having a mean pore diameter of at least 0.1 micron and a surface area of not more than 15 me2/gram in an amount of from 0.01 to 30 percent by weight, based on the total weight of both the carrier and the applied metal, wherein the carrier is selected from the group consisting of active carbon, silicon carbide, alumina, silica, titanium dioxide, zirconium dioxide, magnesium dioxide, zinc oxide and mixtures thereof. Claimed are also the above-described catalyst and its use for hydrogenation of the aromatic compounds.

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