公开(公告)号：ID16433A

公开(公告)日：1997-09-25

申请号：ID970337

申请日：1997-02-04

Applicant: BASF AG

Inventor： SCHMIDT WILLI ,  WECK ALEXANDER ,  HERBST HOLGER ,  GEISSENDORFER MATHIAS ,  DOCKNER TONI ,  NESTLER GERNARD

IPC: B01J31/02 ,  C07B61/00 ,  C07C67/08 ,  C07C67/54 ,  C07C69/54

Abstract: In the continuous production of alkyl (meth)acrylates (AA) by reacting (meth)acrylic acid with 1-8 carbon (C) monohydric alkanols in homogeneous liquid phase, free from solvent, at elevated temperature and in the presence of an acid esterification catalyst; (a) (meth)acrylic acid, alkanol and catalyst are fed to a reaction zone; (b) during a residence time, the water formed is separated in a rectification unit (RU) III above the reaction zone; (c) the aqueous distillate is separated into an organic phase containing the alkanol and an aqueous phase; (d) the organic phase is recycled to RU III; and (e) the reaction mixture is discharged from the reaction zone and passed to another RU, where AA is separated by distillation. The novel features are that: (i) the molar ratio of (meth)acrylic acid and alkanol is 1:(0.75-2); (ii) the aqueous phase from RU III is partly recycled to RU III; (iii) the reaction mixture is passed to RU I, in which it is separated into a product (II) containing the catalyst and a product (I) containing AA, residual alkanol and residual (meth)acrylic acid; and (iv) (I) is passed to RU II, in which AA is separated from residual alkanol and residual (meth)acrylic acid and the alkanol and acid are recycled to the reaction zone. Preferably the alkanol is 2-ethylhexanol. The catalyst is para-toluenesulphonic acid (p-TSA) and/or other organic sulphonic acids, e.g. methane-, benzene- or dodecylbenzene-sulphonic acid, and/or sulphuric acid (H2SO4). The catalyst concentration in the reaction mixture is 0.1-10, especially 0.1-6 wt.% p-TSA in the reaction zone and 2.5-50 wt.% p-TSA in the sump or an equimolar amount of organic sulphonic acid and/or H2SO4. The reaction zone consists of a cascade of NOTLESS 2, especially 2-4 consecutive sections, especially reactors with circulating vapourisers. All rectification units are rectification columns.

公开(公告)号：DE19604267A1

公开(公告)日：1997-08-07

申请号：DE19604267

申请日：1996-02-06

Applicant: BASF AG

Inventor： IFFLAND GABRIELE ,  DAMS ALBRECHT ,  WECK ALEXANDER ,  AICHINGER HEINRICH ,  HERBST HOLGER ,  NESTLER GERHARD ,  EXNER HERBERT ,  SCHMIDT WILLI ,  GEISENDOERFER MATTHIAS ,  DOCKNER TONI

IPC: B01J27/02 ,  B01J31/02 ,  C07B61/00 ,  C07C67/08 ,  C07C67/54 ,  C07C69/54

公开(公告)号：MX9604237A

公开(公告)日：1997-03-29

申请号：MX9604237

申请日：1996-09-23

Applicant: BASF AG

Inventor： EXNER HERBERT ,  BAUR KARL ,  DOCKNER TONI ,  POTTHOFF CHRISTIANE ,  DAMS ALBRECHT

IPC: C07C67/08 ,  C07C67/54 ,  C07C69/54

Abstract: Un proceso y un aparato para la preparacion continua de ésteres de alquilo de ácido (met)acrílico mediante la reaccion de ácido (met)acrílico y alcanoles monohídrico de 1 a 8 átomos de carbono en la fase libre de solvente líquida homogénea, a temperaturas elevadas y en presencia de un catalizador ácido de esterificacion, mediante la alimentacion del ácido (met)acrílico, el alcanol y el catalizador ácido en forma continua a una zona de reaccion, la zona de reaccion consiste en una cascada de cuando menos dos regiones de reaccion conectadas en serie, y la corriente de descarga de una region de reaccion forma una corriente de alimentacion de una region de reaccion que se encuentra corriente abajo. La cascada puede tener de dos a cuatro regiones de reaccion espacialmente separadas entre ellas.

公开(公告)号：HU198470B

公开(公告)日：1989-10-30

申请号：HU281685

申请日：1985-07-24

Applicant: BASF AG

Inventor： SAUERWALD MANFRED ,  DOCKNER TONI ,  ROHR WOLFGANG ,  REISSENWEBER GERNOT

IPC: A01N43/18 ,  C07D335/02

Abstract: 5,6-Dihydro-2H-thiopyran-3-carboxaldehydes of the formula where R denotes hydrogen or methyl, are prepared by a method in which acrolein or crotonaldehyde is reacted with hydrogen sulfide in a mineral oil whose boiling point is higher than those of the starting materials and of the end product, and the 5,6-dihydro-2H-thiopyran-3-carboxaldehyde is obtained by distillation. These aldehydes are important intermediates for the preparation of some crop protection agents.

公开(公告)号：FI882609A

公开(公告)日：1988-12-06

申请号：FI882609

申请日：1988-06-02

Applicant: BASF AG

Inventor： KOEHLER HERMANN ,  DOCKNER TONI

IPC: A61K31/44 ,  A61K31/4427 ,  A61P37/00 ,  C07D233/92 ,  C07D233/94 ,  C07D401/12 ,  C07D473/00 ,  C07D473/38 ,  C07D

Abstract: 4-Nitro-5-imidazolyl ethers and thioethers of the formula I (I) where R1 is alkyl, alkoxyalkyl, cycloalkyl, aryl, aralkyl or alkylaryl, R2 is hydrogen, alkyl, cycloalkyl, aryl, aralkyl or alkylaryl, R3 is alkyl, cycloalkyl, aryl, aralkyl, alkylaryl or a heterocyclic or heteroaromatic radical or a counter-ion of the corresponding alcoholate or thiolate or, where X is sulfur, R3 is hydrogen, and X is oxygen or sulfur, and the stated organic radicals may furthermore carry substituents which are inert under the reaction conditions, are prepared by reacting a dinitroimidazole of the formula II (II) with an alcohol or thiol of the formula III R3-XH (III) in a solvent or diluent at a pH of the from 4 to 16.

公开(公告)号：CA1231953A

公开(公告)日：1988-01-26

申请号：CA460854

申请日：1984-08-13

Applicant: BASF AG

Inventor： DOCKNER TONI ,  POMMER ERNST-HEINRICH ,  DRESSEL JUERGEN

IPC: C05G3/90 ,  C07D233/60 ,  C07D233/61 ,  C07D233/68 ,  C09K17/00

Abstract: O.Z. 0050/36691 4-Alkylimidazole derivatives of the formula I I where R1 is C1-C4-alkyl, R2 is chlorine or bromine and R3 is an -oR4 or -NR5R6 group in which R4 is C1-C4-alkyl, R5 is hydrogen or C1-C4-alkyl and R6 is C1-C4-alkyl or is phenyl which is unsubstituted or substituted by 1 or 2 halogen atoms, and its salts, their preparation and their use as nitrification inhibitors.

公开(公告)号：CA1136633A

公开(公告)日：1982-11-30

申请号：CA338987

申请日：1979-11-01

Applicant: BASF AG

Inventor： DOCKNER TONI ,  FRANK ANTON ,  POMMER ERNST-HEINRICH

IPC: A01N43/50 ,  C07D233/54 ,  C07D233/56 ,  C07D233/58 ,  C07D233/60 ,  C07D233/61 ,  C07D233/92 ,  C07D233/94 ,  C07D233/95 ,  C07D521/00 ,  C07F1/08 ,  A01N55/02

Abstract: The present invention is directed to new imidazolecopper complex compounds of the formula: wherein R1, R2, R3 and R4 are identical or different and each denotes hydrogen or unsubstituted alkyl, phenyl, imidazolyl and aralkyl or substituted by one of the following groups: amino, cyano, lower alkyl, lower dialkylamino, N-phenyl-N-benzylamino, methoxy, hydroxy, pyrrolidyl, morpholinyl and piperidinyl, and R4 may additionally denote nitro, cyano or carboxy, and X denotes the anion of a mineral or lower fatty acid selected from the group consisting of formic acid, acetic acid, propionic acid, oxalic acid, tartaric acid, ascorbic acid and citric acid. The above compounds have a good fungicidal action, more particularly on phytopathogenic fungi. This invention relates also to the fungicides containing these compounds as active ingredients processes for their manufacture and their use for combating fungi.

公开(公告)号：NO146397C

公开(公告)日：1982-09-22

申请号：NO763400

申请日：1976-10-05

Applicant: BASF AG

Inventor： FLEIG HELMUT ,  HAGEN HELMUT ,  DOCKNER TONI ,  KOHLMANN FRIEDRICH WILHELM

IPC: A61K31/415 ,  A61K31/44 ,  A61K31/445 ,  A61P31/04 ,  A61P33/02 ,  C07D417/06 ,  C07D417/14

公开(公告)号：NO146397B

公开(公告)日：1982-06-14

申请号：NO763400

申请日：1976-10-05

Applicant: BASF AG

Inventor： FLEIG HELMUT ,  HAGEN HELMUT ,  DOCKNER TONI ,  KOHLMANN FRIEDRICH WILHELM

IPC: A61K31/415 ,  A61K31/44 ,  A61K31/445 ,  A61P31/04 ,  A61P33/02 ,  C07D417/06 ,  C07D417/14

公开(公告)号：CS208138B2

公开(公告)日：1981-08-31

申请号：CS747579

申请日：1979-11-02

Applicant: BASF AG

Inventor： DOCKNER TONI ,  FRANK ANTON ,  POMMER ERNST-HEINRICH

IPC: A01N43/50 ,  C07D233/54 ,  C07D233/56 ,  C07D233/58 ,  C07D233/60 ,  C07D233/61 ,  C07D233/92 ,  C07D233/94 ,  C07D233/95 ,  C07D521/00

Abstract: New imidazole-copper complex compounds having a good fungicidal action, fungicides containing these compounds as active ingredients, processes for their manufacture, and their use for combating fungi.