中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.022 seconds)

    Verfahren zur stereoselektiven Herstellung von (-)3a,6,6,9a-Tetramethyl-perhydronaphtho[2,1-b]furan
    1.
    发明公开
    Verfahren zur stereoselektiven Herstellung von (-)3a,6,6,9a-Tetramethyl-perhydronaphtho[2,1-b]furan 失效
    （f）（ - ）3a，6,6,9a-四甲基 - 过氢萘甲酰[2,1-b]呋喃的Verfahren zur stereoselektiven

    公开(公告)号：EP0696587A3

    公开(公告)日：1998-06-10

    申请号：EP95112005

    申请日：1995-07-31

    Applicant: BASF AG

    Inventor： HUELLMANN MICHAEL DR ,  BECKER RAINER DR ,  HASEL WINNFRIED DR ,  JESSEL BARBARA DR

    IPC: C07D307/92

    CPC classification number: C07D307/92

    Abstract: Verfahren zur stereoselektiven Herstellung von (-)3a,6,6,9-Tetramethyl-perhydronaphtho[2,1-b]furan der Formel Ia

    Abstract translation: 立体选择性制剂 的cpd。 （I），其被称为（ - ） - 3a,6,6,9-四甲基 - 全氢 - 萘并（2,1-b）呋喃，显示为3a，6,6,9a-四甲基衍生物。 的式（Ia）的化合物包括在液体中脱水和环化十氢-2-羟基-2,5,5,8-四甲基-1-萘 - 乙醇（II）。 相。 反应在10-50℃下，在10-100重量％的存在下，基于（II），具有高离子交换容量的商业蒙脱土催化剂或（b）在120-140℃下进行（a） 在10-100重量％的市售可用于制备柱色谱的活性酸性氧化铝的存在下。

    3.
    发明专利
    未知

    公开(公告)号：DE3908768A1

    公开(公告)日：1990-09-20

    申请号：DE3908768

    申请日：1989-03-17

    Applicant: BASF AG

    Inventor： HOERCHER ULRICH DR ,  JESSEL BARBARA DR ,  BOCKSTIEGEL BERNHARD DR ,  GRAFEN PAUL DR ,  LAAS HARALD DR

    IPC: B01J27/122 ,  C07B61/00 ,  C07C46/08 ,  C07C50/02

    Abstract: Process wherein trimethylphenol is oxidised with oxygen or an oxygen-containing gas in the presence of a catalyst which contains a copper(II) halide in a two-phase reaction medium consisting of water and an aliphatic alcohol at high temperature, characterised in that the reaction is performed in a mixture of water and a saturated aliphatic alcohol with 12 to 18 C-atoms and a flash point above 120 DEG C, such as 1-dodecanol, 1-tetradecanol, 1-hexadecanol or 1-octadecanol, especially 1-dodecanol, and at temperatures between 60 and 100 DEG C. … Particularly good yields of TMBQ are obtained when the reaction is performed in the presence of a copper(II) halide, such as CuCl2 or CuBr2, and an alkaline earth metal halide, especially CaCl2 or MgCl2, or an alkali metal halide, especially LiCl and NaCl, as catalyst system.

    4.
    发明专利
    未知

    公开(公告)号：DE59002140D1

    公开(公告)日：1993-09-09

    申请号：DE59002140

    申请日：1990-03-14

    Applicant: BASF AG

    Inventor： HOERCHER ULRICH DR ,  JESSEL BARBARA DR ,  BOCKSTIEGEL BERNHARD DR ,  GRAFEN PAUL DR ,  LAAS HARALD DR

    IPC: B01J27/122 ,  C07B61/00 ,  C07C46/08 ,  C07C50/02

    Abstract: Process wherein trimethylphenol is oxidised with oxygen or an oxygen-containing gas in the presence of a catalyst which contains a copper(II) halide in a two-phase reaction medium consisting of water and an aliphatic alcohol at high temperature, characterised in that the reaction is performed in a mixture of water and a saturated aliphatic alcohol with 12 to 18 C-atoms and a flash point above 120 DEG C, such as 1-dodecanol, 1-tetradecanol, 1-hexadecanol or 1-octadecanol, especially 1-dodecanol, and at temperatures between 60 and 100 DEG C. … Particularly good yields of TMBQ are obtained when the reaction is performed in the presence of a copper(II) halide, such as CuCl2 or CuBr2, and an alkaline earth metal halide, especially CaCl2 or MgCl2, or an alkali metal halide, especially LiCl and NaCl, as catalyst system.

Patent Agency Ranking