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公开(公告)号：DE59905124D1
公开(公告)日：2003-05-28
申请号：DE59905124
申请日：1999-02-11
Applicant: BASF AG
Inventor： EIERMANN MATTHIAS , EBEL KLAUS , BOTZEM JOERG
IPC: B01J27/182 , C07B61/00 , C07C45/52 , C07C45/65 , C07C45/66 , C07C45/67 , C07C45/82 , C07C49/587 , C07C49/593 , C07C49/597 , C07C49/603 , C07C49/607 , C25B3/23 , C25B3/02
Abstract: Preparation of 2-cycloalkenones (I) comprises subjecting 2-alkoxycycloalkanones (II) and/or 2-hydroxycycloalkanone ketals (III) to a gas-phase elimination reaction in the presence of an acidic heterogeneous catalyst. Preparation of 2-cycloalkenones of formula (I) comprises subjecting 2-alkoxycycloalkanones of formula (II) and/or 2-hydroxycycloalkanone ketals of formula (III) to a gas-phase elimination reaction in the presence of an acidic heterogeneous catalyst: n = 0-20; m = 0-3; R = alkyl, alkylaryl, aryl, arylalkyl, alkenyl or alkynyl, where the aryl groups are optionally substituted by 1-2 of alkyl, OH and alkoxy; R' = alkyl or alkenyl, or R'+R' = 1-5C alkylene or 2-5C alkenylene.
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公开(公告)号：DE19937108A1
公开(公告)日：2001-02-08
申请号：DE19937108
申请日：1999-08-06
Applicant: BASF AG
Inventor： PUETTER HERMANN , SCHIERLE-ARNDT KERSTIN , BOTZEM JOERG
IPC: C07C43/315 , C07C47/277 , C25B3/23 , C25B3/00 , C07B41/00 , C07C43/303 , C07C43/307
Abstract: A method for producing compounds which are oxidized in an alpha position by electrochemical reaction with alcohol in the presence of an auxiliary electrolyte and catalytic amounts of a metal salt.
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公开(公告)号：DE19838046A1
公开(公告)日：2000-02-24
申请号：DE19838046
申请日：1998-08-21
Applicant: BASF AG
Inventor： AQUILA WERNER , BOTZEM JOERG , BRUNNER MELANIE , FUCHS HARTWIG , KRAUSE WOLFGANG , PANDL KLAUS , SCHAEFER-LUEDERSSEN ULRICH
IPC: B01J23/50 , C07B61/00 , C07C45/37 , C07C45/39 , C07C45/51 , C07C49/175 , C07C49/403 , C07C49/12
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公开(公告)号：MX221393B
公开(公告)日：2004-07-12
申请号：MXPA01005629
申请日：2001-06-05
Applicant: BASF AG
Inventor： BOTZEM JOERG , KOBER REINER , FREDE MARKUS
IPC: B01D61/46 , B01D61/44 , C02F1/469 , C07C209/68 , C07C209/84 , C07C211/63 , C07F9/54 , C25B3/00
Abstract: Methods of preparing or purifying onium hydroxides of the elements N, S or P by electrodialysis involve an electrodialysis apparatus comprising one or more cell units, each cell unit comprising a bipolar membrane and an anion-selective membrane, and a bipolar membrane or a cation-selective membrane being located on the anode side between the last anion-selective membrane and the anode.
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公开(公告)号：DE10207238B4
公开(公告)日：2004-03-11
申请号：DE10207238
申请日：2002-02-21
Applicant: BASF AG
Inventor： FISCHER ANDREAS , PUETTER HERMANN , BOTZEM JOERG , HAAG THOMAS
Abstract: Production of organic compounds by electrochemical reaction of corresponding organic starting compounds at graphite, carbon black or carbon electrodes in a liquid electrolyte comprises addition of a metal salt derived from a Group 1, 2, 6, 7 or 8 metal or lead, tin or rhenium to the electrolyte whereby the electrolyte has a dielectric constant of less than 20. A process for the production of organic compounds (I) by electrochemical reaction of corresponding organic starting compounds (II) at graphite, carbon black or carbon electrodes in a liquid electrolyte (E) is claimed whereby 0.01 mmol-1 mole of a metal salt (M) (calculated as moles of metal ions per kg of (E)), derived from a Group 1, 2, 6, 7 or 8 metal or lead, tin or rhenium is added to the electrolyte (E) prior to or during the electrochemical reaction and the composition of the electrolyte (E) is such that (E) has a dielectric constant of less than 20.
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Patent Agency Ranking
公开(公告)号：DE59907231D1
公开(公告)日：2003-11-06
申请号：DE59907231
申请日：1999-12-06
Applicant: BASF AG
Inventor： BOTZEM JOERG , KOBER REINER , FREDE MARKUS
IPC: B01D61/46 , B01D61/44 , C02F1/469 , C07C209/68 , C07C209/84 , C07C211/63 , C07F9/54 , C25B3/00
Abstract: Methods of preparing or purifying onium hydroxides of the elements N, S or P by electrodialysis involve an electrodialysis apparatus comprising one or more cell units, each cell unit comprising a bipolar membrane and an anion-selective membrane, and a bipolar membrane or a cation-selective membrane being located on the anode side between the last anion-selective membrane and the anode.
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公开(公告)号：DE10215899A1
公开(公告)日：2003-10-23
申请号：DE10215899
申请日：2002-04-11
Applicant: BASF AG
Inventor： FISCHER ANDREAS , PUETTER HERMANN , BOTZEM JOERG
Abstract: Electrochemical synthesis comprises electrochemical oxidation of organic starting compound to organic compound on a graphite, carbon black or carbon anode (anode I) with specified metal cathode (cathode I); and pre-roughening anode I by operating as cathode (cathode II) to generate hydrogen with charge of 0.01-100 F and using electrolytes Electrochemical synthesis comprises (I) producing an organic compound (Z) by electrochemical oxidation of an organic starting compound (A) on a graphite, carbon black or carbon anode (anode I) using a cathode (cathode I) of stainless steel, a sub-group 1, 2, 6, 7 or 8 metal, lead, tin or rhenium (metal M); and (II) pre-roughening the electrode acting as anode I by operating it as cathode (cathode II), at which hydrogen is generated with a charge of 0.01-100 F, then reversing the polarity of cathode II to anode I. The compositions of the electrolytes used are selected so that a mixture of all mixing components of electrolytes I and II, up to any conductive salt present, has a dielectric constant less than 20.
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公开(公告)号：DE10149063A1
公开(公告)日：2003-04-17
申请号：DE10149063
申请日：2001-10-05
Applicant: BASF AG
Inventor： HEYDRICH GUNNAR , AUST NICOLA CHRISTIANE , PUETTER HERMANN , FISCHER ANDREAS , BOTZEM JOERG
IPC: C07B61/00 , C07C41/50 , C07C43/303 , C07C47/198
Abstract: The production of diacetals (I) of glyoxal (II) from aqueous glyoxal and monohydric alcohols (III) with an acid catalyst (IV) involves leaving a mixture of (III) and (II) in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration. production of diacetals (I) of glyoxal (II) from 40-75 wt% aqueous glyoxal and monohydric alcohols (III) with acid catalyst (IV) involves leaving a mixture of (III) and (II) (mol ratio = at least 15:1) and not more than 8 wt% water in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration (without distilling off more than 5 wt% of the alcohol).
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公开(公告)号：CA2458696A1
公开(公告)日：2003-03-13
申请号：CA2458696
申请日：2002-08-10
Applicant: BASF AG
Inventor： GRIMMER JOHANNES , MERK CLAUDIA , ERNST HANSGEORG , SAUERWALD MANFRED , BOTZEM JOERG , MUELLER THOMAS
Abstract: The invention relates to a method for producing compounds of general formula (I), wherein Rl represents an oxocyclohexyl radical which is optionally substituted by a hydroxyl radical, an alkoxy radical, and/or alkyl radicals, or an oxocyclohexenyl radical which is optionally substituted by a hydroxyl radical, an alkoxy radical, and/or alkyl radicals, the oxo groups being in t he form of an acetal, a ketone, or an enol ether, and R2 represents a hydroxy group or a protective group which can be transformed into a hydroxy group by means of hydrolysis. A compound of general formula (II) is cathodically reduced in a divided or partially divided electrolysis cell at a pH value of between 2 and 9.
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公开(公告)号：PL343532A1
公开(公告)日：2001-08-27
申请号：PL34353299
申请日：1999-03-30
Inventor： KOBER REINER , HOBBS DAVID G , GIBSON SCOTT W , FERSCH KENNETH EUGENE , RADEMACHER WILHELM , BOTZEM JOERG , FREDE MARKUS , DERNBACH MATTHIAS , GOETTSCHE REIMER , DOETZER REINHARD
IPC: A01N33/12 , A01N43/40 , A01N59/14 , C07D295/02 , C01B35/12 , C07D295/037
Abstract: The invention provides novel mepiquat plant growth regulator compositions which have improved hygroscopicity and corrosion characteristics. The novel mepiquat plant growth regulator compositions of the invention can be readily prepared from technical mepiquat chlorid inter alia by electrochemical ion exchange processes or by quaternization of N-methylpiperidine with dimethylcarbonate as starting material.
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