中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

39 records (took 0.02 seconds)

    11.
    发明专利
    未知

    公开(公告)号：AT538126T

    公开(公告)日：2012-01-15

    申请号：AT06701700

    申请日：2006-01-09

    Applicant: BASF SE

    Inventor： SOMMERLADE REINHARD H ,  FRITZSCHE KATHARINA ,  FISCHER WALTER

    IPC: C07F9/50

    Abstract: A process for the preparation of bis-acylphosphanes of formula R1P(COR2)2 wherein R1 is unsubstituted phenyl or phenyl substituted by one to five halogen, C1-C8-alkyl, C1-C8-alkylthio and/or C1-C8-alkoxy; R2 is C1-C18-alkyl or C2-C18-alkenyl; C1-C18-alkyl or C2-C18-alkenyl substituted once or more than once by halogen -OR10, -OCO-R10, -OCO-Hal, -COO-R10, -N(R11)-CO-R10, -N(R11)-CO-Hal, -CO-NR11R10, -CH-CH-CO-OR10 or -CH-CH-phenyl; -C(C1-C4alkyl)=C(C1-C4alkyl)-CO-OR10 or -C(C1-C4alkyl)=C(C1-C4alkyl)-phenyl; C5-C12cycloalkyl, C2-C18alkenyl, phenyl-C1-C4alkenyl, phenyl, naphthyl, biphenyl or a 5- or 6-membered -O-, S- or N-containing heterocyclic ring, the radicals phenyl, naphthyl, biphenyl or the 5- or 6-membered -0-, S- or N-containing heterocyclic ring being unsubstituted or substituted by one to five halogen, C1-C8alkyl, C1-C8alkoxy and/or C1-C8alkylthio; the process comprises the steps in a) selective reduction of dichlorophenylphosphanes of the formula R1P(CI)2 by means of hydrogen at a temperature in the range from 20 to 200° C. and under hydrogen pressure of atmospheric pressure to 20 bar in the presence of a hydrogenation catalyst, a tert. aliphatic amine or an aromatic amine and in the presence of a non protic solvent which is unreactive under the hydrogenation conditions to obtain cyclic phenylphosphanes (R1P)n (n=4 to 6); or b) selective reduction of R1P(CI)2 by means of hydrogen at a temperature in the range from 80 to 250° C. and under hydrogen pressure of 25 to 250 bar in the presence of a hydrogenation catalyst, a tert. aliphatic amine or an aromatic amine and in the presence of a non protic solvent which is unreactive under the hydrogenation conditions to obtain R1PH2; c) subsequent reaction with an acid halide of formula in the presence of an apropriate base R2COHal wherein R2 is as defined above.

    12.
    发明专利
    未知

    公开(公告)号：AT510900T

    公开(公告)日：2011-06-15

    申请号：AT07704138

    申请日：2007-01-25

    Applicant: BASF SE

    Inventor： ROSSI MIRKO ,  ZAGNONI GRAZIANO ,  VITALI MANUELE ,  LAZZARI DARIO ,  FISCHER WALTER

    IPC: C09K11/02

    Abstract: The present invention pertains to a reversible thermochromic system comprising a &bgr;-phenylvinylketone or a ω-phenyl polyacetylenyl ketone with at least one acidic hydrogen and a base and to a reversible thermochromic composition comprising the reversible thermochromic system and a carrier material and to novel substituted &bgr;-phenylvinylketones or ω-phenyl polyacetylenyl ketones with at least one acidic hydrogen.

    COMPOSICIONES TERMOCROMICAS REVERSIBLES.
    14.
    发明专利
    COMPOSICIONES TERMOCROMICAS REVERSIBLES. 未知

    公开(公告)号：ES2356267T3

    公开(公告)日：2011-04-06

    申请号：ES07730262

    申请日：2007-06-20

    Applicant: BASF SE

    Inventor： FISCHER WALTER ,  BASBAS ABDEL-ILAH ,  BRUNNER MARTIN ,  BENZ ROLF ,  VITALI MANUELE

    IPC: B41M5/28

    Abstract: Un sistema termocrómico reversible que comprende a) un compuesto de la fórmula (I) o un tautómero del mismo en donde R1 es alquilo C1 - C18, alquenilo C2 - C18, cicloalquilo C3 - C12, cicloalquilo C3 - C12 sustituido por 1, 2 ó 3 alquilo C1 - C4; o fenilalquilo C7 - C12; R2 y R3 son hidrógeno o R2 y R3 juntos forman un grupo -CH=CH-CH=CH-; y R4 es hidrógeno, -NO2, -SO2-R1 o (4-nitrofenil)azo; y b) un compuesto que contiene un grupo de la fórmula

Patent Agency Ranking