中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

21 records (took 0.021 seconds)

    3.
    发明专利
    未知

    公开(公告)号：DE4337331A1

    公开(公告)日：1995-05-04

    申请号：DE4337331

    申请日：1993-11-02

    Applicant: BASF AG

    Inventor： KARL ULRICH DR ,  MUELLER STEFAN DR ,  POTZOLLI BERND DE DR ,  KNUEHL KLAUS

    IPC: C07C269/06 ,  C07C271/22 ,  C07C323/52 ,  C07C229/12 ,  C07C229/36 ,  C07C229/22 ,  C07C227/18

    Abstract: PCT No. PCT/EP94/03480 Sec. 371 Date Sep. 6, 1995 Sec. 102(e) Date Sep. 6, 1995 PCT Filed Oct. 22, 1994 PCT Pub. No. WO95/12574 PCT Pub. Date May 11, 1995A process for preparing N-protected N-alkylated amino acids of the formula where Rs and R1-R3 have the meanings indicated in the description comprises adding a compound of the abovementioned formula where R3 is hydrogen to a solution of a base in a non-protic solvent and subsequently adding an alkylating agent.

    4.
    发明专利
    未知

    公开(公告)号：DE19629453A1

    公开(公告)日：1998-01-29

    申请号：DE19629453

    申请日：1996-07-23

    Applicant: BASF AG

    Inventor： BECKMANN EBERHARD DR ,  KRUEGER RUDOLF DR ,  KARL ULRICH DR ,  TRITSCHLER CLAUS DR

    IPC: D06P1/62 ,  C07C309/08 ,  C07C309/14 ,  C07C313/04 ,  D06P3/54 ,  D06P5/04 ,  D06P5/06 ,  D06P5/10 ,  C07C309/07 ,  C07C49/17

    Abstract: The invention concerns a process for the reductive post-cleaning of coloured or printed polyester-containing textiles and is characterized in that a mixture is added as a post-treatment agent to the acid dye liquor or the washing bath. Said mixture comprises as components: a) at least one compound of formula (I) Am[(CR R )mSO2M]p,q, in which A designates NR 3-q or OR 2-p, R , R , R designate hydrogen, C1-C6 alkyl, R designates identical or different groups selected from the group comprising hydrogen, C1-C20 alkyl, C3-C8 cycloalkyl, optionally substituted by between one and three C1-C4 alkyl groups, M is an equivalent of an ammonium, alkali or alkaline earth ion, m is 0 or 1, p is 1 or 2, q is 1, 2 or 3, at least one of the groups R , R , R being a C1-C6 alkyl when A stands for OR 2-p, and, when m equals 0: p, q assuming the value 2, and the compound of formula (I) is used in a mixture with an amount of acid-binding substance which is sufficient to increase the pH value of the dye liquor or washing bath by between 1 and 3 units; b) optionally at least one compound of formula (II) A[(CR R )SO3M]p,q, in which A, R , R , R , R , M, p and q have the same general meanings as in formula (I); and c) optionally further additives.

    9.
    发明专利
    未知

    公开(公告)号：DE19502967A1

    公开(公告)日：1996-08-01

    申请号：DE19502967

    申请日：1995-01-31

    Applicant: BASF AG

    Inventor： KARL ULRICH DR ,  SEITZ WERNER DR

    IPC: C07B57/00 ,  C07C253/34 ,  C07C255/43 ,  C07C253/32

    Abstract: A process is disclosed for separating racemates of phenyl acetonitriles having the formula (I), in which R , R , R and n have the meaning given in the description. The process consists in dissolving the racemates (I) in a polar solvent, adding thereto 0.5 to 1.0 mole of optically active camphosulphonic acid per mole of compound (I), heating the mixture up to 40 to 100 DEG C, letting it cool down and extracting the optically active phenyl acetonitrile (I) from the thus obtained salt.

Patent Agency Ranking