1.
    发明专利
    未知

    公开(公告)号:DE3828063A1

    公开(公告)日:1990-02-22

    申请号:DE3828063

    申请日:1988-08-18

    Applicant: HOECHST AG

    Abstract: Styrenes of the general formula are obtained from a corresponding hydroxyaldehyde, which is reacted with at least n mol of a vinyl ether of the formula CF2=CFOR to give the perfluorinated aldehyde and subsequently with a methylenetriarylphosphonium halide, in each case in the presence of inert, aprotic solvents and various bases, to give compounds (I). The styrenes (I) are used for the preparation of polymers which serve as support materials for chromatographic processes, as materials for optic systems, as resists, as mouldings and adhesives.

    2.
    发明专利
    未知

    公开(公告)号:DE59001152D1

    公开(公告)日:1993-05-13

    申请号:DE59001152

    申请日:1990-04-25

    Applicant: HOECHST AG

    Abstract: Alkyl(C1-C3) nitrobenzoates are prepared by reacting the nitrobenzoic acid to be esterified with an excess of about 300 to about 600 mol % of a C1-C3-alkanol in a solvent which is inert towards the starting compounds and the reaction product in the presence of a polyfluoroalkanesulphonic acid of the general formula (1> Y(CnF2n)SO3H (1> in which Y denotes a hydrogen or fluorine atom, with the proviso that if Y is H this hydrogen atom is in the beta -position relative to the sulpho group, or the hydrate thereof as catalyst in an amount of about 0.1 to about 20 mol %, relative to the nitrobenzoic acid used, at temperatures of about 60 to about 120 DEG C.

    4.
    发明专利
    未知

    公开(公告)号:DE3913781A1

    公开(公告)日:1990-10-31

    申请号:DE3913781

    申请日:1989-04-26

    Applicant: HOECHST AG

    Abstract: Alkyl(C1-C3) nitrobenzoates are prepared by reacting the nitrobenzoic acid to be esterified with an excess of about 300 to about 600 mol % of a C1-C3-alkanol in a solvent which is inert towards the starting compounds and the reaction product in the presence of a polyfluoroalkanesulphonic acid of the general formula (1> Y(CnF2n)SO3H (1> in which Y denotes a hydrogen or fluorine atom, with the proviso that if Y is H this hydrogen atom is in the beta -position relative to the sulpho group, or the hydrate thereof as catalyst in an amount of about 0.1 to about 20 mol %, relative to the nitrobenzoic acid used, at temperatures of about 60 to about 120 DEG C.

    5.
    发明专利
    未知

    公开(公告)号:DE3828064A1

    公开(公告)日:1990-03-01

    申请号:DE3828064

    申请日:1988-08-18

    Applicant: HOECHST AG

    Abstract: Homo- and copolymers based on (2-haloalkoxy-1,1,2-trifluoroethoxy)styrenes of the general formula process for their preparation by free-radical polymerisation in the presence of free-radical formers, and the use of the polymers as a support material and a separation phase for chromatographic processes, as a material for optical systems, as resists, as mouldings and as adhesives.

    7.
    发明专利
    未知

    公开(公告)号:DE3674048D1

    公开(公告)日:1990-10-18

    申请号:DE3674048

    申请日:1986-04-10

    Applicant: HOECHST AG

    Abstract: The invention relates to a process for the preparation of compounds of the formula I and salts or acid addition compounds thereof (I) in which R denotes hydrogen, (halogenated) alkyl with the exception of CF3, a (substituted) aromatic radical, (substituted) heteroaryl, (substituted) phenoxy, (substituted) phenylthio, (substituted) phenylamino, halogen, hydroxyl, alkoxy, mercapto, (halogenated) cycloalkyl, alkylmercapto, amino, monoalkylamino or dialkylamino, R1 denotes (substituted alkyl, (substituted) phenyl or naphthyl, alkenyl, alkinyl, cycloalkyl, (substituted) benzyl or heteroaryl, and X denotes oxygen or sulfur, which comprises reacting a nitrile of the formula II with a compound of the formula III R-C 3BOND N (II) R1-XH (III) in the presence of anhydrous hydrofluoric acid, a perfluoroalkanecarboxylic acid, a perfluoralkanesulfonic acid or a perfluorinated ion exchanger containing sulfonic acids, and converting the resulting salts of the formula I, if appropriate by the addition of bases, into the free imidates of the formula I and, if approximate, converting the latter subsequently into further salts or acid addition compounds. The invention also relates to the new compounds of the formula I in which R1 denotes a (substituted) phenyl radical and R and X have the meanings mentioned. The compounds of the formula I are valuable intermediate products in the preparation of plant protection agents and pharmaceuticals.

    8.
    发明专利
    未知

    公开(公告)号:DE3545570A1

    公开(公告)日:1987-06-25

    申请号:DE3545570

    申请日:1985-12-21

    Applicant: HOECHST AG

    Abstract: The compounds of the formula I (I) in which A denotes N or N->O, Z denotes O or NH, R denotes H, (halo)alkyl, (halo)alkenyl, (halo)alkynyl or alkoxycarbonyl, R1 denotes hydrogen, halogen, amino, -NHOH, hydroxyl, (substituted) phenylazo or a radical of the formulae Y=C=N-, Y1Y2C=N-, Y3NH- or K denotes 0 or 1, and m and n, independently of one another, denote a number from 1 to 4, with the proviso that, when Z-R denotes OH or NH2, (R1)n denotes at least one radical of the formula or represents two radicals, in the 5 or 6 position of the heterocyclic ring, which, in the 5 position, denote halogen and, in the 6 position, denote a radical of the group comprising halogen, amino, hydroxyl or phenylazo, which may be substituted as specified above, are valuable intermediates in the synthesis of plant protection agents.

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