公开(公告)号：DE59600724D1

公开(公告)日：1998-12-03

申请号：DE59600724

申请日：1996-03-09

Applicant: BASF AG

Inventor： KRAUSE WOLFGANG DR ,  HENRICH KLAUS ,  PAUST JOACHIM DR ,  ERNST HANSGEORG DR

IPC: C07C45/00 ,  C07C47/21 ,  C07C403/24 ,  C07F9/52

公开(公告)号：DE59307061D1

公开(公告)日：1997-09-11

申请号：DE59307061

申请日：1993-09-25

Applicant: BASF AG

Inventor： KAISER KLAUS DR ,  PAUST JOACHIM DR

IPC: C07D307/62 ,  C02F1/52 ,  C02F1/58 ,  C07F9/655

Abstract: Process for reducing the phosphate content in the effluents from the preparation of salts of ascorbic acid 2-monophosphate, which is characterised in that A. the effluent from the crystallisation of the metal salts of ascorbic acid 2-monophosphate is treated with an alkali metal or alkaline earth metal hypochlorite, chlorine or H2O2 and B. the inorganic phosphate thus obtained by liberation from organically bound phosphorus and/or that still contained in the effluent is precipitated at a pH of 9-12 as sparingly soluble phosphate, in particular as calcium phosphate.

公开(公告)号：DE19510473A1

公开(公告)日：1996-10-02

申请号：DE19510473

申请日：1995-03-27

Applicant: BASF AG

Inventor： JOHN MICHAEL DR ,  DOBLER WALTER DR ,  PAUST JOACHIM DR

IPC: C07D307/60 ,  C07D307/58

公开(公告)号：DE19509955A1

公开(公告)日：1996-09-19

申请号：DE19509955

申请日：1995-03-18

Applicant: BASF AG

Inventor： KRAUSE WOLFGANG DR ,  HENRICH KLAUS ,  PAUST JOACHIM DR ,  ERNST HANSGEORG DR

IPC: C07C45/00 ,  C07C47/21 ,  C07C403/24 ,  C07F9/52

公开(公告)号：DE59106850D1

公开(公告)日：1995-12-14

申请号：DE59106850

申请日：1991-08-16

Applicant: BASF AG

Inventor： DOBLER WALTER DR ,  VOSS HARTWIG DR ,  BALKENHOHL FRIEDHELM DR ,  PAUST JOACHIM DR

IPC: C07F9/09 ,  B01D61/44 ,  C07D307/62 ,  C07F9/655

Abstract: The invention relates to the preparation of potassium magnesium L-ascorbate-2-phosphate from an aqueous potassium L-ascorbate-2- phosphate solution which is highly contaminated with KCl, as is obtained in the phosphorylation of 5,6-isopropylidene-L-ascorbic acid, by treating the solution with approximately 1 equivalent of magnesium ions per equivalent of L-ascorbate-2-phosphate, followed by removal of the KCl by means of electrodialysis. The process product is a novel L-ascorbate-2-phosphate salt which has very advantageous handling properties.

公开(公告)号：ES2072931T3

公开(公告)日：1995-08-01

申请号：ES90103759

申请日：1990-02-26

Applicant: BASF AG

Inventor： DOBLER WALTER DR ,  SCHUL WOLFGANG DR ,  PAUST JOACHIM DR ,  MITSCHKER ALFRED DR

IPC: C07F9/6558 ,  G01N30/02

Abstract: In a process for separating thiamine monophosphate from a solution of thiamine phosphates, the solution of thiamine phosphates, which contains the thiamine monophosphate and cocarboxylase is used at a pH of 2 to 7 and a cationic exchanger resin is used having a pKa of 1.0 to 4.5.

公开(公告)号：DE4430289A1

公开(公告)日：1995-03-09

申请号：DE4430289

申请日：1994-08-26

Applicant: BASF AG

Inventor： ERNST HANSGEORG DR ,  PAUST JOACHIM DR ,  DOBLER WALTER DR ,  RHEUDE UDO DR

IPC: C07C403/16 ,  C07C47/21 ,  C07C69/66 ,  C07C403/00 ,  C07C403/24 ,  C07F9/50 ,  C07F9/54

Abstract: Process for preparing astaxanthine by reacting A. The tertiary alcohol of the formula II or the diacetate of the formula III with aqueous hydrobromic acid or hydrochloric acid in an inert solvent, B. Reacting the resulting halide of the formula IV with triphenylphosphine in an inert solvent and C. Reacting the resulting triphenylphosphonium salt with 2,7-dimethyl-2,4,6-octatriene-1,8-dial in a Wittig reaction, which is characterised in that, in reaction step B, the halide of the formula IV is reacted with the triphenylphospine in an open-chain lower-dialkyl ether, triphenylphosphonium salt of the formula V being obtained in a form in which it can be readily filtered, and this is reacted in reaction step C in a Wittig reaction with 2,7-dimethyl-2,4,6-octatriene-1,8-dial while simultaneously or subsequently eliminating the acetyl groups, or else in that, in reaction step A, the starting compound of the formula II or III is reacted with aqueous hydrobromic acid or hydrochloric acid in methylene chloride, the resulting solution of the halide of the formula IV is reacted with triphenylphosphine, and the resulting solution of the triphenylphosphonium salt of the formula V is reacted with 2,7-dimethyl-2,4,6-octatriene-1,8-dial in a Wittig reaction in methylene chloride while eliminating the acetyl groups.

公开(公告)号：DE59008212D1

公开(公告)日：1995-02-23

申请号：DE59008212

申请日：1990-02-26

Applicant: BASF AG

Inventor： SCHUL WOLFGANG DR ,  PAUST JOACHIM DR

IPC: B01D11/04 ,  C07F9/02 ,  C07F9/6558

Abstract: Process for separating phosphoric acid from aqueous solutions of thiamine phosphates which are produced during the phosphorylation of thiamine and optional subsequent partial hydrolysis, characterised in that the phosphoric acid is converted into the corresponding salt by use of a tertiary amine which is practically insoluble or only slightly soluble in water and this salt is extracted with a solvent of moderate polarity which is practically immiscible or only slightly miscible with water. An especially advantageous method of working is to extract the phosphoric acid with a mixture of a tertiary amine which is practically insoluble or only slightly soluble in water and a solvent of moderate polarity which is practically immiscible or only slightly miscible with water.

公开(公告)号：DE4321197A1

公开(公告)日：1995-01-05

申请号：DE4321197

申请日：1993-06-25

Applicant: BASF AG

Inventor： NAARMANN HERBERT DR ,  PAUST JOACHIM DR

IPC: C07C41/18 ,  C07C43/263 ,  C07C45/72 ,  C07C49/213 ,  C07C49/683 ,  C07C49/697 ,  C07C209/68 ,  C07C211/54 ,  C07C317/14 ,  C07C319/20 ,  C07C321/24 ,  C07C321/30 ,  C07D207/32 ,  C07D333/06 ,  C07D333/08 ,  C07C315/04 ,  C07C317/32 ,  C07D207/323

Abstract: Phenylene compounds of the general formula I in which R is thiophenyl or pyrrolyl, R to R independently of one another are phenyl which can be substituted by one or more halogen atoms, or are thiophenyl, R is H, C1- to C4-alkyl, C1- to C4-alkoxy, trifluoromethyl, CN or phenyl, R is H, cyclohexenyl, which can be substituted by one or more C1- to C4-alkyl groups, or is phenyl, thiophenyl or pyrrolyl which can be substituted by one or more halogen atoms or by NO2, X is O, S, SO, S2, SO2, CO, NH or CH2, m is 0 or 1, n is an integer from 0 to 50 and p is an integer from 1 to 60.

公开(公告)号：DE4224015A1

公开(公告)日：1994-01-27

申请号：DE4224015

申请日：1992-07-21

Applicant: BASF AG

Inventor： FISCH HERBERT DR ,  HAAS KARL-HEINZ DR ,  SCHROF WOLFGANG DR ,  PAUST JOACHIM DR ,  TICKTIN ANTON DR ,  KRAUSE WOLFGANG DR

IPC: G02F1/35 ,  C07C11/21 ,  C07C403/00 ,  C07C403/12 ,  C07C403/24 ,  C08K5/07 ,  C09D7/12 ,  G02F1/355 ,  G02F1/361 ,  G09F9/35

Abstract: The invention concerns materials with non-linear optical properties and which contain more than 10 conjugated double bonds in the molecule. The non-linear optical properties can be produced either by use of the compounds in the pure state or by use of the compounds in combination with a transparent organic polymer without particular non-linear optical properties.