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    14.
    发明专利
    未知

    公开(公告)号：DE4309193A1

    公开(公告)日：1994-09-29

    申请号：DE4309193

    申请日：1993-03-22

    Applicant: BASF AG

    Inventor： BOTT KASPAR DR ,  BAUER GERHARD DR ,  HAEBERLE KARL DR

    IPC: C07C271/18 ,  C07C271/64 ,  C08F20/60 ,  C09D133/24 ,  C09J133/24 ,  C07C271/10 ,  C07C269/02 ,  C07C251/32 ,  C08F220/60 ,  C08F220/36 ,  C08F212/14 ,  C08F246/00 ,  C09J133/14 ,  C09J125/18 ,  C09D133/14

    Abstract: Copolymerisable oxime ethers of the general formula in which A is a divalent connecting link, R and R independently of one another are a C1- to C10-alkyl radical, a C1- to C10-alkoxy radical, a C5- to C10-cycloalkyl radical or a C5- to C10-aryl radical, which can also contain 1 - 3 non-adjacent nitrogen, oxygen or sulphur atoms as hetero atoms in the carbon chain or the carbon ring and can be substituted by one to three C1- to C4-alkyl or alkoxy groups, R or R can be a hydrogen atom or R and R together form a bridge of 3 to 14 carbon atoms, some of the carbon atoms also being able to be part of an aromatic ring, Z is an n-valent organic radical which contains a copolymerisable ethylenically unsaturated group, and n is an integer from 1 to 3.

    15.
    发明专利
    未知

    公开(公告)号：ES2055768T3

    公开(公告)日：1994-09-01

    申请号：ES89115892

    申请日：1989-08-29

    Applicant: BASF AG

    Inventor： BOTT KASPAR DR ,  HOFFMANN HERWIG DR ,  SCHEIDMEIR WALTER DR

    IPC: B01J23/04 ,  B01J31/02 ,  C07B61/00 ,  C07C29/34 ,  C07C29/44 ,  C07C33/20 ,  C07C33/34

    Abstract: Process for the preparation of 3-aryl-isobutanols of the general formula I … … in which… R and R are hydrogen or an alkyl or cycloalkyl radical with up to 8 C atoms, preferably an alkyl radical with 1 to 4 C atoms,… which is characterised in that arylcarbinols of the general formula II … … are reacted with n-propanol in the presence of catalytic amounts of an alkali metal hydroxide or alkali metal oxide at 250 to 350 DEG C in a closed reaction vessel. … The process is particularly important for preparing 3-aryl-isobutanols of the formula I in which R is an alkyl radical with 1 to 4 C atoms and R is hydrogen. The p-methyl-, p-isopropyl- and p-tert.-butylphenylisobutanols obtained in this way in very high selectivity are valuable precursors for the fragrances jasmorange, cyclamenaldehyde and Lysmeral (Lilial ) which are in high demand.

    17.
    发明专利
    未知

    公开(公告)号：DE58903873D1

    公开(公告)日：1993-04-29

    申请号：DE58903873

    申请日：1989-09-08

    Applicant: BASF AG

    Inventor： BOTT KASPAR DR

    IPC: C07C67/03 ,  C07C69/675 ,  C08G18/06 ,  C08G18/32 ,  C08L75/04

    Abstract: The invention relates to dihydroxy compounds which are attached to ester groups and have reduced reactivity and the formula I in which R is a linear or branched alkylene radical with 2 to 20 C atoms, an optionally substituted cycloalkylene radical with 5 to 10 carbon atoms, or a polyoxyalkylene radical composed of 2 to 50 oxyalkyl groups which are linked blockwise or in random distribution and have 2 to 4 C atoms in the alkylene radical. The dihydroxy compounds are prepared by transesterification of alkyl hydroxypivalates with alkanediols, cycloalkanediols or polyoxyalkylene glycols and are used in polyurethane chemistry.

    18.
    发明专利
    未知

    公开(公告)号：DE58902274D1

    公开(公告)日：1992-10-22

    申请号：DE58902274

    申请日：1989-06-01

    Applicant: BASF AG

    Inventor： BOTT KASPAR DR ,  NICK BERNHARD DR ,  SCHULZ GUENTHER DR

    IPC: C07D231/12 ,  C07D261/08 ,  C08F20/60

    Abstract: The invention relates to novel 4-[(meth)acrylamidomethyl]pyrazoles and isoxazoles of the general formula (I) in which R denotes a hydrogen atom or a methyl group; R denotes a hydrogen atom, a methyl group or an ethyl group; R and R denotes an alkyl group having 1 to 6 C atoms or an unsubstituted or substituted aryl group having 6 to 20 C atoms, where R and R can be identical to or different from one another; X denotes an oxygen atom or an NR group in which R stands for a hydrogen atom or a radical having the meaning of R or R . The invention in addition relates to a process for the preparation of the 4-[(meth)acrylamidomethyl]pyrazoles and -isoxazoles of the general formula (I) and the use of these compounds, in particular for polymerisation and preparation of homo- and copolymers.

    20.
    发明专利
    未知

    公开(公告)号：DE3728242A1

    公开(公告)日：1989-03-09

    申请号：DE3728242

    申请日：1987-08-25

    Applicant: BASF AG

    Inventor： BOTT KASPAR DR ,  HARTMANN HORST ,  GUTH JOSEF

    IPC: C07C67/08 ,  C07C69/54

    Abstract: Carboxylic esters are prepared by reacting carboxylic acids with low-boiling alcohols by charging the reaction mixture to a 1st distillation column, withdrawing the reaction components carboxylic ester, water and unconverted alcohol as overhead product and charging this overhead product to a 2nd distillation column, from which (a) the overhead product comprises the alcohol or an azeotropic mixture of alcohol and water or alcohol and esteer, this overhead product being recycled into the esterification reaction (b) a liquid side product comprising carboxylic ester and water is withdrawn from the stripping section and separated in a phase separating vessel into water and carboxylic ester and the carboxylic ester is returned into the distillation column below the side takeoff point, and (c) the bottom product removed is the carboxylic ester.

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