中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

19 records (took 0.024 seconds)

    METHOD FOR PRODUCING 1,1,4,4-TETRAMETHOXYBUTENE-2
    1.
    发明专利
    METHOD FOR PRODUCING 1,1,4,4-TETRAMETHOXYBUTENE-2 失效

    公开(公告)号：JP2001097912A

    公开(公告)日：2001-04-10

    申请号：JP2000292408

    申请日：2000-09-26

    Applicant: BASF AG

    Inventor： WEGNER CHRISTOPH ,  PAUST JOACHIM ,  ERNST HANSGEORG

    IPC: C07C41/28 ,  C07B61/00 ,  C07C41/50 ,  C07C43/15

    Abstract: PROBLEM TO BE SOLVED: To find one method capable of producing tetramethoxybutene by an industrially simple process especially continuously in an excellent yield and reducing formation of pentamethoxybutane in the production. SOLUTION: In this method for producing 1,1,4,4-tetramethoxybutene-2 by reacting 2,5-dimethoxy-dihydrofuran with methanol in the presence of an acid, the reaction is carried out in the presence of an acidic organic ion exchanger selected from the group H type zeolite, a mixed oxide of acid and a laminar silicate containing an acid center or an inorganic oxide catalyst containing an acid center.

    Method for purifying phosphonium salt
    2.
    发明专利
    Method for purifying phosphonium salt 审中-公开
    净化磷酸盐的方法

    公开(公告)号：JP2003012681A

    公开(公告)日：2003-01-15

    申请号：JP2002177680

    申请日：2002-06-18

    Applicant: Basf Ag ,  ビーエーエスエフ アクチェンゲゼルシャフト

    Inventor： WEGNER CHRISTOPH ,  KLEIN DANIELA

    IPC: C07F9/02 ,  C07F9/54

    CPC classification number: C07F9/5428 ,  C07F9/025 ,  C07F9/5435

    Abstract: PROBLEM TO BE SOLVED: To provide a simple and efficient method for the purification of a crude phosphonium salt.
    SOLUTION: A phosphonium salt of formula (R is a 5-40C hydrocarbon group; R' is a 1-4C alkyl or a 6-10C aryl; and X is an anion) is purified by a process containing the steps of (a) passing a solution of the crude phosphonium salt through a bed of a cation exchange resin having a salt form, (b) washing the cation exchange resin with at least one polar protonic or aprotic solvent and/or at least one nonpolar solvent and (c) eluting the phosphonium salt from the cation exchange resin with an electrolyte solution optionally combined with a polar aprotic solvent.
    COPYRIGHT: (C)2003,JPO

    Abstract translation: 要解决的问题：提供简单且有效的纯鏻盐的纯化方法。 解决方案：通过包含以下步骤（a）的方法纯化式（R为5-40C烃基; R'为1-4C烷基或6-10C芳基; X为阴离子）的鏻盐， 使粗鏻盐的溶液通过具有盐形式的阳离子交换树脂的床，（b）用至少一种极性质子或非质子溶剂和/或至少一种非极性溶剂洗涤阳离子交换树脂，和（c） 用选择性与极性非质子溶剂组合的电解质溶液从阳离子交换树脂中洗脱鏻盐。

    METHOD FOR MANUFACTURING PHOSPHONIUM SALT
    3.
    发明专利
    METHOD FOR MANUFACTURING PHOSPHONIUM SALT 失效

    公开(公告)号：JP2001270889A

    公开(公告)日：2001-10-02

    申请号：JP2001059147

    申请日：2001-03-02

    Applicant: BASF AG

    Inventor： WEGNER CHRISTOPH ,  JOHN MICHAEL

    IPC: C07F9/54

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing 3,7,11-trimethyldodeca-2,4,6,10- tetraen-1-yl phosphonium salt. SOLUTION: The method for manufacturing a phosphonium salt expressed by general formula I (wherein, R is an aryl; and X is an anion of an organic acid or an inorganic acid selected from the group consisting of hydrohalogenic acids, sulfuric acid, sulfonic acid, phosphoric acid and 1-6C alkanoic acids) comprises a process in which 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-ol expressed by formula II is made to react with a triarylphosphane and an organic or inorganic acid shown above. The method is carried out by the following two steps: (a) at first, a process in which a tertiary phosphonium salt expressed by formula III (wherein, R and X are same as defined above) is produced at a temperature of -20 to 40 deg.C; and (b) a process in which the resultant tertiary phosphonium salt of formula III is rearranged to a primary phosphonium salt of formula I at a temperature of 40-100 deg.C.

    PRODUCTION OF PHOSPHONIUM SALT, PHOSPHONIUM SALT, AND PRODUCTION OF LYCOPENE
    5.
    发明专利
    PRODUCTION OF PHOSPHONIUM SALT, PHOSPHONIUM SALT, AND PRODUCTION OF LYCOPENE 失效

    公开(公告)号：JPH11130787A

    公开(公告)日：1999-05-18

    申请号：JP22461398

    申请日：1998-08-07

    Applicant: BASF AG

    Inventor： WEGNER CHRISTOPH ,  PAUST JOACHIM ,  JOHN MICHAEL

    IPC: C07C403/24 ,  C07C11/21 ,  C07F9/54

    Abstract: PROBLEM TO BE SOLVED: To produce a 3,7,11-trimethyldodeca-2,4,6,10-tetraene-1-yl-phoshonium salt at a high rate of E, the salt providing a high E/Z selectivity in synthesizing lycopene, by reacting vinylpseudoionol with two kinds of specific compounds. SOLUTION: This compound of formula II (R is a aryl; and X is Cn H2n+1 -So3 , Ar-SO3 or CF3 -SO3 ) is obtained by reacting an alcohol of formula I with triarylphosphine (e.g. triphenylphosphine) and a sulfonic acid [pref. methane sulfonic acid (70%)] of any formulas Cn H2n+1 -SO3 H ((n) is 1 to 4), Ar-So3 H (Ar is a phenyl or tolyl) or CF3 -SO3 H in a solvent (pref. acetic acid, etc.). The compound of formula II is pref. used for a Witting reaction with 2,7- dimethyl-2,4,6-octatrienedial so as to produce a lycopene.

    6.
    发明专利
    未知

    公开(公告)号：DE59806098D1

    公开(公告)日：2002-12-12

    申请号：DE59806098

    申请日：1998-08-07

    Applicant: BASF AG

    Inventor： WEGNER CHRISTOPH ,  PAUST JOACHIM ,  JOHN MICHAEL

    IPC: C07C403/24 ,  C07C11/21 ,  C07F9/54

    Abstract: New and known phosphonium salts are prepared by reacting an alcohol with a triarylphosphine and a sulfonic acid in a solvent. Preparation of phosphonium salts of formula (I) comprises reaction of 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-ol (II) with a triarylphosphine and a sulfonic acid of formula XH (III) in a solvent. X = Q-SO3 ; Q = CnH2n+1, Ar' or CF3; R = aryl; n = 1, 2, 3 or 4; Ar' = phenyl or toluyl Independent claims are included for: (1) compounds (I) when Q is other than Ar'; and (2) preparation of lycopine by reaction of a compound of formula (I) with 2,7-dimethyl-2,4,6- octatrienedial.

    7.
    发明专利
    未知

    公开(公告)号：DE10129403A1

    公开(公告)日：2003-01-02

    申请号：DE10129403

    申请日：2001-06-19

    Applicant: BASF AG

    Inventor： WEGNER CHRISTOPH ,  KLEIN DANIELA

    IPC: C07F9/02 ,  C07F9/54

    Abstract: A solution of crude phosphonium salt is passed over a bed of a cation exchange resin in salt form. Subsequently, the cation exchange resin is washed with a solvent, and the phosphonium salt is eluted from the resin with an electrolyte solution, optionally in combination with a polar aprotic solvent. A solution of crude phosphonium salt of formula R-P+R'3X- is passed over a bed of a cation exchange resin in salt form. Subsequently, the cation exchange resin is washed with a solvent and the phosphonium salt is eluted from the resin with an electrolyte solution, optionally in combination with a polar aprotic solvent. The solvent for washing is polar protic or aprotic solvent(s) and/or nonpolar solvent(s). R = 5-40C hydrocarbon radical; R' = 1-4C alkyl or 6-10C aryl; and X = anion equivalent.

    9.
    发明专利
    未知

    公开(公告)号：DE50209913D1

    公开(公告)日：2007-05-24

    申请号：DE50209913

    申请日：2002-01-24

    Applicant: BASF AG

    Inventor： WEGNER CHRISTOPH ,  JOHN MICHAEL

    IPC: C07C5/22 ,  C07C11/21

    Abstract: The present invention relates to a process for the thermal isomerization of a mixture of all-E-lycopene and its Z isomers of any composition to increase the proportion of all-E, wherein the isomerization takes place in a polar solvent in which lycopene is only slightly soluble.

    10.
    发明专利
    未知

    公开(公告)号：AT359250T

    公开(公告)日：2007-05-15

    申请号：AT02719721

    申请日：2002-01-24

    Applicant: BASF AG

    Inventor： WEGNER CHRISTOPH ,  JOHN MICHAEL

    IPC: C07C5/22 ,  C07C11/21

    Abstract: The present invention relates to a process for the thermal isomerization of a mixture of all-E-lycopene and its Z isomers of any composition to increase the proportion of all-E, wherein the isomerization takes place in a polar solvent in which lycopene is only slightly soluble.

Patent Agency Ranking