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    PRODUCTION OF SUBSTITUTED IMIDAZOLE
    1.
    发明专利
    PRODUCTION OF SUBSTITUTED IMIDAZOLE 失效

    公开(公告)号：JPH1087632A

    公开(公告)日：1998-04-07

    申请号：JP22248497

    申请日：1997-08-19

    Applicant: BASF AG

    Inventor： HIEBER GISELA DR ,  EBEL KLAUS DR ,  SCHROEDER JUERGEN DR ,  DOCKNER TONI DR ,  GROENING CARSTEN DR ,  RUGE BERND DR

    IPC: C07D233/58 ,  B01J21/12 ,  B01J27/16 ,  C07D233/54 ,  C07D233/68 ,  C07D233/90 ,  C07D233/91 ,  C07D233/92 ,  C07D235/06 ,  C07D235/08

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as a precursor substance or an intermediate for producing dyestuffs, fiber auxiliaries, plastics, etc., by directly using an aqueous imidazole phase obtained on the synthesis of the substituted imidazole. SOLUTION: The aqueous phase of an imidazole compound of formula I (R , R , R are each H, a halogen, NO2 , etc.) is reacted with a compound of the formula: R -O-R (R is a 1-20C hydrocarbon; R is H or R ) in the presence of a catalyst such as the oxide of a metal belonging to the subgroup 4 in the main groups 2, 3, 4 in the periodic table, a phosphate salt, etc., at 220-550 deg.C to produce the substituted imidazole of formula II. The catalyst is used in the form of a fixed bed, and an advantageous catalyst comprises 40-99wt.% of SiO2 and 1-60wt.% of H3 PO4 , or comprises 70-90wt.% of Al2 O3 and 10-30wt.% of SiO2 . Water and the compound of formula I are used in amounts of 99.9-0.1wt.% and 0.1-99.9wt.%, especially advantageously 40-10wt.% and 60-90wt.%, respectively, in the reaction. The reaction temperature is 200-550 deg.C, especially advantageously 280-420 deg.C.

    METHOD FOR PRODUCING POLYMERIZABLE COMPOUND
    2.
    发明专利
    METHOD FOR PRODUCING POLYMERIZABLE COMPOUND 审中-公开

    公开(公告)号：JP2003192637A

    公开(公告)日：2003-07-09

    申请号：JP2002258037

    申请日：2002-09-03

    Applicant: BASF AG

    Inventor： NESTLER GERHARD ,  SCHROEDER JUERGEN DR ,  MCGLONE NICOLE

    IPC: B01D3/14 ,  B01D3/10 ,  B01D3/34 ,  C07B61/00 ,  C07C67/08 ,  C07C69/54

    Abstract: PROBLEM TO BE SOLVED: To provide a method for suppressing the polymerization of polymerizable compounds in a liquid circulation pump to decrease the loss of the valuable product in the liquid circulation pump. SOLUTION: The polymerizable compounds are prepared and/or worked up using at least one liquid circulation pump by a process in which a working liquid which contains a material stream from the preparation and/or working-up of the polymerizable compound is used in the liquid circulation pump. COPYRIGHT: (C)2003,JPO

    9.
    发明专利
    未知

    公开(公告)号：DE4238045A1

    公开(公告)日：1994-05-19

    申请号：DE4238045

    申请日：1992-11-11

    Applicant: BASF AG

    Inventor： EBEL KLAUS DR ,  SCHROEDER JUERGEN DR

    IPC: C07C46/00 ,  C07C50/18 ,  C07C225/34 ,  C07C271/30 ,  C09B1/18

    Abstract: Anthraquinones of the general formula I in which R denotes hydrogen or A denotes R denotes C1- to C8-alkyl, C7- to C20-phenylalkyl and R , R , R and R independently of one another denote hydrogen, C1- to C8-alkyl, C7- to C20-phenylalkyl, C1- to C8-alkoxy, C1- to C8-haloalkyl, nitro, cyano, halogen, amino, C1- to C8-alkylcarbonyl, benzoyl, N-C1- to C8-alkylphenylamino, C1- to C8-alkylsulphonyl, phenylsulphonyl, aminosulphonyl, aminocarbonyl and nitrobenzyl are prepared by reacting N-butadienylcarbamic acid esters of the general formula II in which R has the abovementioned meanings, a) for the case where A denotes with 1,4-naphthoquinones of the general formula III in which the substituents R to R have the abovementioned meanings, or b) for the case where A denotes with 1,4-benzoquinone at temperatures from 0 to 150@C, and then reacting the resultant carbamoylhydroanthraquinones in a tertiary amine with oxygen-containing gases in the presence of copper salts, and optionally treating the resultant carbamoylanthraquinones with hydroxide solutions at temperatures from 0 to 150@C.

    10.
    发明专利
    未知

    公开(公告)号：DE19544450A1

    公开(公告)日：1997-06-05

    申请号：DE19544450

    申请日：1995-11-29

    Applicant: BASF AG

    Inventor： SCHROEDER JUERGEN DR ,  BOECK STEFAN DR ,  EBEL KLAUS DR

    IPC: B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  C07B61/00 ,  C07C41/28 ,  C07C43/16 ,  C07C43/166 ,  C07C43/176 ,  C07C67/327 ,  C07C69/734 ,  C07C69/708 ,  C07C67/317 ,  C07C255/15

    Abstract: The preparation of enol-ethers of formula R3R4C=C(OR1)R2 is by gas phase reaction at 100-550 (especially 200-350) degrees C and 0.001-5 bar of acetals or ketals of formula R3R4HC-C(OR1)(OR1')R2 on a heterogeneous highly porous catalyst which is an oxide of a Gp. II, III or IV or sub-Gp. II or IV element, the catalyst having a pH of 7-14, a porosity of 40-80% and a BET surface area of 0.5-250 m /g. R1-5 = 1-20 C alkyl, 2-20 C alkenyl or 7-20 C phenylalkyl; R2-4 = H, aryl, CN, COOR5, 1-12 C alkyl (optionally 1-3 times substituted or interrupted by COOR5, CO, CN or 1-12 C alkoxy), aryl or 7-12 C phenylalkyl (each optionally 1-3 times substituted by 1-12 C alkyl, 1-12 C alkoxy, halogen or CN); R2/R4 or R3/R4 = together 3-10 C alkylene or 2-20 C alkylidene; and R1' = R1, but not necessarily the same.

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