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公开(公告)号:JPH10195066A
公开(公告)日:1998-07-28
申请号:JP35346197
申请日:1997-12-22
Applicant: BASF AG
Inventor: BALDENIUS KAI-UWE , KAISER WULF , BOCKSTIEGEL BERNHARD , LAAS HARALD , SCHULZ BERNHARD , SCHMITT PETER , GLIETENBERG HELMUT
IPC: B01J27/138 , C07D311/72
Abstract: PROBLEM TO BE SOLVED: To obtain α-tocopherol (vitamin E) important as an antioxidant in the field of nutrition without causing grave waste-water problem from trimethylhydroquinone, etc., by recycling a zinc halide condensation catalyst. SOLUTION: The subject compound is produced by reacting 2,3,5- trimethylhydroquinone with phytol or isophytol in the presence of zinc chloride or zinc bromide and a proton donor such as a mineral acid or toluensulfonic acid. The reaction is carried out in a nonpolar solvent scarcely miscible with water and zinc chloride, etc., are introduced into the reaction system as a mixture of 1mol of the zinc chloride, etc., and 1-4mol of water, separated after the completion of reaction and recycled to the reaction system optionally after concentrating or replenishing to a concentration of about 60-90wt.%.
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公开(公告)号:JP2003026620A
公开(公告)日:2003-01-29
申请号:JP2002130876
申请日:2002-05-02
Applicant: Basf Ag , ビーエーエスエフ アクチェンゲゼルシャフト
Inventor: ANSMANN ANDREAS , HENKELMANN JOCHEM , KINDLER ALOIS , ETZRODT HEINZ , OOST CARSTEN , STUTZ SUSANNE , TRAGUT CHRISTIAN , BOCKSTIEGEL BERNHARD , REIMER KLAUS , STROEZEL MANFRED , DOBLER WALTER
IPC: B01J23/44 , B01J23/50 , B01J35/04 , B01J35/06 , B01J37/02 , C07B61/00 , C07C29/17 , C07C29/32 , C07C29/42 , C07C33/02 , C07C33/048 , C07C45/48 , C07C45/62 , C07C45/67 , C07C49/203
CPC classification number: C07C49/203 , B01J23/44 , B01J23/50 , B01J35/04 , B01J35/06 , B01J37/0225 , C07C29/17 , C07C29/42 , C07C45/62 , C07C45/676 , C07C33/02 , C07C33/048 , C07C49/04
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a higher α,β-unsaturated alcohol in which engineering is easily performed. SOLUTION: This method for producing the alcohol represented by formula Ia or Ib [R is a 1-4C alkyl group; R is a group of formula II (R is hydrogen or a 1-4C alkyl group; a broken line is an additional double bond; and n is 0 or 1-6), hydrogen, or a saturated alkyl group] comprises (a) mono-ethynylating a ketone or formula: R -CO-CH2 -R in ammonia solution by using a basic catalyst, (b) optionally hydrogenating the alcohol of formula Ib on a Pd catalyst, and (c) subjecting the hydrogenated product to a purification distillation, and if necessary, reacting Ia or Ib produced by the steps (a) to (c) or by the steps (a) and (c) with an alkyl acetoacetate of formula IV [R is a 1-4C alkyl group], or a diketene to provide a methyl ketone, and using the ketone as a starting material in the steps (a) to (c).
Abstract translation: 要解决的问题:提供一种制造其中易于进行工程的较高α,β-不饱和醇的方法。 解决方案:用于制备由式Ia或Ib表示的醇的方法[R 1]是1-4C烷基; R 2是式II的基团(R 3是氢或1-4C烷基;虚线是另外的双键; n是0或1-6),氢或饱和烷基 基团]包括(a)通过使用碱性催化剂在氨溶液中使酮或式:R 1 -CO-CH 2 -R 2单乙炔基化,(b)任选地在Pd催化剂上氢化式Ib的醇 和(c)使氢化产物进行纯化蒸馏,如果需要,使由步骤(a)至(c)或步骤(a)和(c)制备的Ia或Ib与式 IV [R 5是1-4C烷基]或二烯酮以提供甲基酮,并且在步骤(a) - (c)中使用酮作为原料。
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公开(公告)号:IN186855B
公开(公告)日:2001-11-24
申请号:IN2956MA1997
申请日:1997-12-22
Applicant: BASF AG
Inventor: BALDENIUS KAI-UWE , KAISER WULF , BOCKSTIEGEL BERNHARD , LAAS HARALD , SCHULZ BERNHARD , SCHMITT PETER , GLIETENBERG HELMUT
IPC: B01J27/138 , C07D311/72
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公开(公告)号:DE19962907A1
公开(公告)日:2001-07-05
申请号:DE19962907
申请日:1999-12-23
Applicant: BASF AG
Inventor: REIMER H KLAUS , KAIBEL GERD , KAMMEL ULRICH , BROECKER FRANZ JOSEF , ANSMANN ANDREAS , ETZRODT HEINZ , STROEZEL H MANFRED , HAAKE MATHIAS , LAUPICHLER LOTHAR , BOCKSTIEGEL BERNHARD
IPC: B01J23/44 , B01J23/50 , B01J35/04 , B01J35/06 , B01J37/02 , B01J37/08 , C07B61/00 , C07C5/09 , C07C29/17 , C07C33/02 , C07C33/03 , C07B35/02
Abstract: Production of alkenes by liquid-phase hydrogenation of alkynes containing 10-30 carbon (C) atoms comprises using a monolithic supported palladium catalyst and hydrogen containing 10-2000 ppm carbon monoxide (CO). Production of alkenes by liquid-phase hydrogenation of alkynes containing 10-30 C atoms at 20-250 degrees C and a hydrogen partial pressure of 0.3-200 bar comprises: (a) using a fixed bed of a catalyst prepared by calcining a support material in air, cooling it, impregnating it with a solution containing a palladium salt and optionally other metal ions, drying the product and shaping it into a monolithic catalyst element; and (b) either adding 10-2000 ppm CO to the hydrogen or generating an equivalent amount of CO by adding a CO-releasing compound to the liquid phase.
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公开(公告)号:ES2138358T3
公开(公告)日:2000-01-01
申请号:ES96924819
申请日:1996-06-29
Applicant: BASF AG
Inventor: BURST WOLFRAM , HARTMANN HORST , KAISER WULF , LAAS HARALD , GRAFEN PAUL , BOCKSTIEGEL BERNHARD
IPC: B01D3/00 , B01D3/10 , B01D3/14 , B01D3/16 , B01D3/26 , B01D3/32 , B01D53/86 , B01D53/94 , B01J19/32 , B01J23/63 , B01J23/656 , B01J23/89 , C07C17/38 , C07D311/72
Abstract: PCT No. PCT/EP96/02851 Sec. 371 Date Jan. 7, 1998 Sec. 102(e) Date Jan. 7, 1998 PCT Filed Jun. 29, 1996 PCT Pub. No. WO97/02890 PCT Pub. Date Jan. 30, 1997Packing elements with a low pressure drop for mass transfer column internals of the internal diameter of the column and of a height of from 40 to 300 mm made of dimensionally stable layers, which have an ordered structure and are in mutual contact, of cloth material or cloth-like material with a specific surface area of from 100 to 2000 m2/m3, wherein a) the shaped layers of cloth material or cloth-like material, preferably made of metal cloth, which are in mutual contact are arranged so that they form a multiplicity of narrow flow channels, preferably virtually triangular, virtually rectangular or else virtually equilateral hexagonal flow channels, in which the angle of inclination of the serration of the individual cloth layers of the packing to the column axis is only 0 to 25 DEG , preferably 3 to 14 DEG , and b) to ensure mechanical stability of the packing elements, if necessary wires or thin rods are fixed in suitable arrangement between the cloth layers, or else the cloth layers are firmly connected at some points of contact, and processes for obtaining pure substances from substance mixtures by rectification using the novel packing elements.
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公开(公告)号:DE19929367A1
公开(公告)日:2000-12-28
申请号:DE19929367
申请日:1999-06-25
Applicant: BASF AG
Inventor: KLATT MARTIN JOCHEN , MUELLER THOMAS , BOCKSTIEGEL BERNHARD
Abstract: The preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione (I) by oxidation of 3,5,5-trimethyl-cyclohex-3-en-1-one (II) with molecular oxygen is catalyzed by a manganese salen complex (III). Preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione (I) (i.e. oxoisophorone) involves oxidation of 3,5,5-trimethyl-cyclohex-3-en-1-one (II) (i.e. beta -isophorone) with molecular oxygen in presence of a solvent, a base and a manganese salen complex of formula (III) as catalyst. R = H or Cl; M = Mn(II) or Mn(III) .Cl .
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公开(公告)号:DE19840747A1
公开(公告)日:2000-03-09
申请号:DE19840747
申请日:1998-09-07
Applicant: BASF AG
Inventor: OOST CARSTEN , STROEZEL MANFRED , ETZRODT HEINZ , WELLER DIETMAR , BOCKSTIEGEL BERNHARD , REIMER KLAUS , KAIBEL GERD , JAEDICKE HAGEN
IPC: B01J31/14 , B01D3/00 , B01D3/14 , B01D3/32 , B01J10/00 , B01J19/24 , C07B61/00 , C07C45/67 , C07C45/68 , C07C45/82 , C07C49/203 , C07C67/54 , C07C69/72 , C07C45/65 , C07C49/255
Abstract: Continuous production of 5-alken-2-one or 3,5-alkadien-2-one derivatives (I) by reacting a 1-alken-3-ol or 1-alkyn-3-ol derivative (II) with an alkyl acetoacetate (III) in a fractionation column to form an acetoacetate and alcohol involves (i) removing the alcohol and (ii) contacting the acetoacetate with catalyst in the lower part or bottom of the column to form (I). Continuous production of unsaturated ketones of formula (I) by reacting an unsaturated alcohol of formula (II) with an alkyl acetoacetate of formula (III) in the presence of an organoaluminum catalyst is carried out by: (a) reacting (II) with (III) on the plates of a fractionation column to form the acetoacetate of (II) and an alcohol of formula R OH; (b) removing the alcohol in the overhead stream from the column; (c) contacting the acetoacetate of (II) with the catalyst in the lower part or bottom of the column to form (I) and CO2; (d) removing the CO2 in the overhead stream from the column; and (e) withdrawing (I) in the bottoms stream from the column. R = 1-4C alkyl; R = 1-37C (un)saturated aliphatic hydrocarbyl (optionally substituted by methoxy groups), 4-12C cycloalkyl or 5-30C cycloalkylalkyl; and R = 1-5C alkyl.
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公开(公告)号:DE19733503A1
公开(公告)日:1999-02-04
申请号:DE19733503
申请日:1997-08-01
Applicant: BASF AG
Inventor: BALDENIUS KAI-UWE , KAISER WULF , BOCKSTIEGEL BERNHARD , LAAS HARALD , SCHULZ BERNHARD , SCHMITT PETER , GLIETENBERG HELMUT
IPC: C07D311/72
Abstract: Preparation of alpha -tocopherol or alpha -tocopheryl acetate comprises reaction of 2,3,5-trimethylhydroquinone (TMH) with phytol or isophytol (IP) in the presence of a zinc halide condensation catalyst and a proton donor, optionally with a final esterification step using acetic anhydride. The reaction involves: (A) a water immiscible or poorly water-miscible non-polar solvent; and (B) 1-4 mole water per mole zinc halide.
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公开(公告)号:MX9203293A
公开(公告)日:1992-12-01
申请号:MX9203293
申请日:1992-06-24
Applicant: BASF AG
Inventor: BOCKSTIEGEL BERNHARD , EMLING FRANZ , KLING ANDREAS , JESSEL BARBARA , JANSSEN BERND
IPC: C07C219/06 , C07C229/06
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公开(公告)号:DE59709492D1
公开(公告)日:2003-04-17
申请号:DE59709492
申请日:1997-12-17
Applicant: BASF AG
Inventor: BALDENIUS KAI-UWE , KAISER WULF , BOCKSTIEGEL BERNHARD , LAAS HARALD , SCHULZ BERNHARD , SCHMITT PETER , GLIETENBERG HELMUT
IPC: B01J27/138 , C07D311/72
Abstract: Preparation of alpha -tocopherol or alpha -tocopheryl acetate comprises reaction of 2,3,5-trimethylhydroquinone (TMH) with phytol or isophytol (IP) in the presence of a zinc halide condensation catalyst and a proton donor, optionally with a final esterification step using acetic anhydride. The reaction involves: (A) a water immiscible or poorly water-miscible non-polar solvent; and (B) 1-4 mole water per mole zinc halide.
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