公开(公告)号：DE59009263D1

公开(公告)日：1995-07-27

申请号：DE59009263

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：DE4231492A1

公开(公告)日：1994-03-24

申请号：DE4231492

申请日：1992-09-21

Applicant: BASF AG

Inventor： HARTH KLAUS DR ,  SCHROF WOLFGANG DR ,  ESSER ANTON DR ,  FISCH HERBERT DR ,  PAUST JOACHIM DR ,  HIBST HARTMUT DR ,  HAAS KARL-HEINZ DR ,  TICKTIN ANTON DR

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/132 ,  G02F1/01 ,  G02F1/065 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361 ,  G06F17/14 ,  G02B1/10 ,  B05D5/06 ,  B05D7/24

Abstract: A layer of non-linear optical (NLO) material protected against attack, especially by atmospheric oxygen, having an anti-diffusion coating, at least on one side.

公开(公告)号：DE4229141A1

公开(公告)日：1994-03-03

申请号：DE4229141

申请日：1992-09-01

Applicant: BASF AG

Inventor： NAARMANN HERBERT DR ,  PAUST JOACHIM DR

IPC: C07D285/12 ,  C08G61/12 ,  C08G75/00 ,  H01B1/12 ,  C08G73/06 ,  C08L79/04 ,  D01F6/74

Abstract: Polyene-thiadiazoles of formula (I) are claimed as are also, (i) the prepn. of (I) by (a) reaction of aldehyde-terminated polyenes with hydrazine hydrate and S or by (b) reaction of polyene-azines of formula (II) with elemental S; (ii) the use of (I) in the prodn. of elec. conductive materials. Where in formulae, R1 and R2 = H, 1-6C alkyl (opt. substd. by F or Cl); 1-6C alkyl-phenyl (opt. substd. by 1-6C alkyl, 1-6C alkoxy, NO2, -NMe2, F or Cl), CN, F or Cl; R3 and R4 = 1-30C alkyl, 1-30C alkenyl, 1-6C alkyl-phenyl or phenyl; m and n = 1-30; and p = 1-100. USE/ADVANTAGE - (I) are red-coloured materials which can be pressed or press-sintered (opt. together with electron-acceptors such as I2, SbCl5 or esp. FeCl3 to give mouldings, films or fibres with elec. conductivity of e.g.0.001-0.01 Scm-1. Stable (I) are obtd. by a simple process.

公开(公告)号：DE4226625A1

公开(公告)日：1994-02-17

申请号：DE4226625

申请日：1992-08-12

Applicant: BASF AG

Inventor： KAISER KLAUS DR ,  BALKENHOHL FRIEDHELM DR ,  PAUST JOACHIM DR

IPC: C07F9/655 ,  C07F9/572

Abstract: Process for obtaining the calcium salt of ascorbyl 2-monophosphate from aqueous/alkaline reaction mixtures as they are obtained when ascorbic acid is reacted with a molar excess of phosphorus oxychloride in the presence of a tertiary amine while maintaining a pH of 12 to 13 during the reaction by means of an aqueous alkali metal solution, which process is characterised in that a) starting from a reaction mixture which has been obtained by reacting ascorbic acid with phosphorus oxychloride in the presence of pyridine while maintaining a pH of 12 to 13 by means of an aqueous potassium hydroxide solution, b) the phosphoric acid ions formed during this reaction are precipitated by means of magnesium chloride in amounts of approximately 1 mol per mol of phosphoric acid ions as potassium magnesium phosphate, c) the potassium magnesium phosphate is separated off, d) the pyridine together with some of the water is removed from the remaining aqueous solution by distillation, e) the resulting aqueous solution is reacted with calcium chloride and f) the calcium salt of ascorbyl 2-monophosphate, which crystallises out during this process in the form of the calcium salt, is isolated, or in that, after process step a), the pyridine/water mixture is first removed as described in process step d) and process steps (b), (c), (e) and (f) are subsequently carried out.

公开(公告)号：DE4106907A1

公开(公告)日：1992-09-10

申请号：DE4106907

申请日：1991-03-05

Applicant: BASF AG

Inventor： AQUILA WERNER DR ,  SCHOLZ HANS-ULRICH DR ,  FUCHS HARTWIG ,  KRAUSE WOLFGANG DR ,  PAUST JOACHIM DR ,  HOFFMANN WERNER DR

IPC: C07D317/26 ,  B01J23/50 ,  B01J23/72 ,  C07B61/00 ,  C07C41/18 ,  C07C43/178 ,  C07C45/38 ,  C07C47/277 ,  C07C67/313 ,  C07C69/73 ,  C07D319/06

Abstract: Preparation of 3-alkoxycarbonylpropenals and 3-dialkoxymethylpropenals of the general formula Ia and Ib, respectively, … … (R = C1-C3-alkyl; R and R = H, Me or Et; R and R = C1-C4-alkyl, which can be linked to form a 5- or 6-membered ring), by reacting a corresponding alcohol IIa or IIb … … with oxygen or an oxygen-containing gas in the gas phase in the presence of a metal of group IB of the Periodic System or of a compound of one of these metals as catalysts. … The process products are used as intermediates for the synthesis of carotenoids.

公开(公告)号：DE4026787A1

公开(公告)日：1992-02-27

申请号：DE4026787

申请日：1990-08-24

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：DE3910260A1

公开(公告)日：1990-10-04

申请号：DE3910260

申请日：1989-03-30

Applicant: BASF AG

Inventor： NAARMANN HERBERT DR ,  PAUST JOACHIM DR

IPC: C08F2/00 ,  C08F2/48 ,  C08F38/00 ,  H01B1/12 ,  H01L51/30 ,  H05K1/09 ,  H05K3/10

Abstract: Polydiacetylene containing defined electron-donor and/or electron-acceptor groups is obtained by the thermally and/or light-induced photochemical polymerisation of hexadiyne derivatives substituted by corresponding electron-donor and/or electron-acceptor groups.

公开(公告)号：DE3362211D1

公开(公告)日：1986-03-27

申请号：DE3362211

申请日：1983-11-24

Applicant: BASF AG

Inventor： ERNST HANSGEORG DR ,  PAUST JOACHIM DR

IPC: C07C67/22 ,  C07C67/307 ,  C07C67/317 ,  C07C69/533 ,  C07C69/63 ,  C07C69/65

公开(公告)号：DE3341463A1

公开(公告)日：1985-05-30

申请号：DE3341463

申请日：1983-11-17

Applicant: BASF AG

Inventor： SCHAEFER-LUEDERSSEN ULRICH DR ,  EGGERSDORFER MANFRED DR ,  PAUST JOACHIM DR

IPC: C07C43/315 ,  C07C45/29 ,  C07C45/34 ,  C07C45/42 ,  C07C45/51 ,  C07C45/59 ,  C07C45/60 ,  C07C45/67 ,  C07C45/79 ,  C07C47/46 ,  C07C47/47 ,  C07C49/757 ,  C07C51/285 ,  C07D317/20 ,  C07D317/72 ,  C07D319/06 ,  C07D319/08 ,  C07F11/00 ,  C07D317/26

Abstract: Optically active alpha-cyclocitral derivatives of the general formulae A and B in which R represents when X represents hydrogen and Y represents an OH group or else R represents in which R and R can be identical or different and in each case denote a linear or branched alkyl group having 1 to 6 C atoms or else R and R together represent an ethylene group or a propylene group, which can be substituted by methyl groups or ethyl groups and X and Y together represent oxygen or X represents hydrogen when Y denotes an OH group, and a process for the preparation of optically active 3-oxo-alpha-cyclocitral acetals, which is characterised in that mixtures of the corresponding racemic 3-oxo-alpha-cyclocitral acetals are separated into the optically active compounds by chromatography on suitable chiral adsorbents, in particular on triacetylated cellulose, using lower alkanols as eluents. The compounds according to the invention open up a novel advantageous route to the optically active 3-hydroxy- beta -cyclocitrals sought-after as important intermediates for carotenoids which are identical to natural carotenoids.

公开(公告)号：DE3170012D1

公开(公告)日：1985-05-23

申请号：DE3170012

申请日：1981-10-08

Applicant: BASF AG

Inventor： VOGEL FRIEDRICH DR ,  PAUST JOACHIM DR

IPC: C07D311/22 ,  C07D311/58 ,  C07D311/70 ,  C07D311/72 ,  C07D407/04

Abstract: Chroman derivatives of the general formula I I where A-B is -CH2-CH2-(Ia), -CH=CH-(Ib), -CHOH-CH2-(Ic) or -CO-CH2-(Id), R1 is -CH2-O-R' or where R' is C1-C4-alkyl or arylmethyl and R'' and R''' are each C1-C4-alkyl, which can also be bonded to form a five-membered or six-membered cyclic acetal, R2 is C1-C4-alkyl and R3 is H or a protective group.