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    PRODUCTION OF SUBSTITUTED INDANONE
    2.
    发明专利
    PRODUCTION OF SUBSTITUTED INDANONE 失效

    公开(公告)号：JPH10139715A

    公开(公告)日：1998-05-26

    申请号：JP24497697

    申请日：1997-09-10

    Applicant: BASF AG

    Inventor： HORN HANS CHRISTOPH ,  SPAHL ROLAND ,  MUELLER HANS-JOACHIM ,  PETER TRUBENBACH ,  RIEGER BERNHARD ,  WAGNER JUERGEN MATTHAEUS ,  DIETRICH ULF

    IPC: B01J27/125 ,  C07B61/00 ,  C07C45/46 ,  C07C49/675 ,  C07C49/697 ,  C07F7/08

    Abstract: PROBLEM TO BE SOLVED: To easily and safely produce the subject compound useful as a production intermediate for a metallocence complex known as a polymerization catalyst in one step by reacting two specific kinds of compounds in the presence of a Friedel-Crafts catalyst. SOLUTION: The objective substituted indanone of the formula IV or the formula V is produced by reacting a compound of the formula I or the formula II [R , R , R and R are each H, a 1-4C (fluoro)alkyl, a (1-4C alkyl)silyl, phenyl, benzyl or R and R form a benzene ring together with the bonded C atom] with a compound of the formula III [R so a 1-10C alkyl or a (1-4C alkyl- substituted)phenyl; X is Cl, Br or I] in the presence of a Friedel-Crafts catalyst (e.g. AlCl3 ) in a Friedel-Crafts solvent (e.g. methylene chloride) at -80 to 0 deg.C.

    8.
    发明专利
    未知

    公开(公告)号：FI101885B1

    公开(公告)日：1998-09-15

    申请号：FI934151

    申请日：1993-09-22

    Applicant: BASF AG

    Inventor： MUELLER HANS-JOACHIM ,  FOLLMER GODOFREDO ,  KONRAD RAINER ,  SAIVE ROLAND ,  LUX MARTIN ,  GOERTZ HANS-HELMUT ,  FUNK GUIDO

    IPC: C08F4/02 ,  C08F4/22 ,  C08F4/24 ,  C08F10/00

    Abstract: Process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, in which (1) a support gel containing silicon dioxide is prepared by (1.1) introducing a sodium or potassium waterglass solution into a rotating stream of an aqueous mineral acid both longitudinally and tangentially to the stream, spraying the silicic acid hydrosol thus formed in droplet form into a gaseous medium, allowing it to solidify into a hydrogel and freeing the hydrogel thus obtained of salt by washing without prior aging, (1.2) drying the hydrogel resulting from (1.1) to form the support gel, and (2) the support gel (1) is loaded with chromium trioxide or a chromium compound which can be converted into chromium trioxide under the conditions of the process step (3), which results in a chromium-containing support gel, and (3) the chromium-containing support gel (2) is heated in an anhydrous gas stream containing oxygen in a concentration of over 10% by volume for from 10 to 1000 minutes at from 400 to 1100 DEG C, the hydrogel resulting from the process step (1.1) being dried in the process step (1.2) over a time of not more than 60 seconds in a shaping flash dryer at an inlet temperature of from 80 to 400 DEG C .

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