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公开(公告)号:JP2003137864A
公开(公告)日:2003-05-14
申请号:JP2002265641
申请日:2002-09-11
Applicant: BASF AG
Inventor: SCHAFER MARTIN , BOETTCHER ARND , KRAMER ANDREAS , HOEHN ARTHUR , KACZMAREK REINHARD , HENKES ERHARD
IPC: B01J23/42 , B01J23/44 , B01J23/63 , C07B61/00 , C07D207/32 , C07D207/323 , C07D213/06 , C07D213/133 , C07D213/16
Abstract: PROBLEM TO BE SOLVED: To provide an improved method for producing a pyrrole and a pyridine. SOLUTION: This method for producing the pyrrole of formula (I) by dehydrogenating a pyrrolidine of formula (II), or producing the pyridine of formula (III) by dehydrogenating a piperidine of formula (VI), in the presence of a noble metal catalyst is substantially carried out in the presence of 1-50 wt.% water based on the total of the pyrrolidine and the water or the piperidine and the water respectively.
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公开(公告)号:JP2001072652A
公开(公告)日:2001-03-21
申请号:JP2000252489
申请日:2000-08-23
Applicant: BASF AG
Inventor: PAUST JOACHIM , ERNST HANSGEORG , KACZMAREK REINHARD , HAGEN IEEDIKKE
IPC: C07B61/00 , C07C231/08 , C07C233/18 , C07C233/47 , C07C233/69 , C07C233/83
Abstract: PROBLEM TO BE SOLVED: To produce the subject compound in high yield by reacting a carboxamide with a glyoxal monoacetal derivative in the presence of a carboxylic acid. SOLUTION: (A) A carboxamide represented by the formula: R1-CONH2 [R1 is H, a 1-12C alkyl or a (substituted) aryl] is reacted with (B) a glyoxal monoacetal derivative represented by formula I [R2 is H, a 1-12C alkyl or a (substituted) aryl; R3 is a 1-12C alkyl] in the presence of (C) a carboxylic acid represented by the formula; R4-COOH (R4 is a 1-12C alkyl), preferably at 40-200 deg.C under 200-1,000 mbars to thereby produce a compound represented by formula II [X is CH(OR3)2 or COOR3]. In the above reaction, the components A and C are used in respective amounts of 250-800 mol% based on the component B. The ratio of the components A:C is preferably 1:1 expressed in terms of molar ratio.
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公开(公告)号:ES2188464T3
公开(公告)日:2003-07-01
申请号:ES00115618
申请日:2000-07-20
Applicant: BASF AG
Inventor: PAUST JOACHIM , ERNST HANSGEORG , KACZMAREK REINHARD , JAEDICKE HAGEN
IPC: C07B61/00 , C07C231/08 , C07C233/18 , C07C233/47 , C07C233/69 , C07C233/83
Abstract: Preparation of N-acyl derivatives (I) using readily available starting materials. N-acyl derivatives of formula R -C(O)N(H)C(R )X (I) are prepared by reacting, in the presence of a compound of formula R -COOH (II), a carbonic acid amide of formula R -CONH2 (III) and a glyoxalmonoacetal derivative of formula R C(O)C(OR )OR (IV). R , R = H or optionally substituted alkyl or aryl; R ,R = 1 - 12C alkyl; and X = CH(OR ) or COOR . An Independent claim is also included for a compound of formula R -C(O)N(H)C(R )C(OR )OR (V).
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公开(公告)号:HU906442D0
公开(公告)日:1991-04-29
申请号:HU644290
申请日:1990-10-12
Applicant: BASF AG
Inventor: KAST JUERGEN , SCHUBERT JUERGEN , KACZMAREK REINHARD
IPC: C07C327/24 , C07C327/28 , C07C327/58
Abstract: Preparation of cyclohexanetrionecarboxylic acid thiol esters of the formula I in which R and R represent optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, benzyl or phenyl, and R additionally denotes hydrogen, by reacting a cyclohexanetrione compound II with hydroxylamine or hydroxylamine O-sulphonic acid in an inert solvent at temperatures from 0 to 150 DEG C to give cyclohexanetrione compounds III subsequently reacting the compounds III with a mercaptan IV R -SH IV in the presence of an anhydrous acid HX to give cyclohexanetrione imidothioester salts V where X represents the acid radical, and hydrolysing the compounds V to give the cyclohexanetrione carboxylic acid thiol esters I.
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公开(公告)号:HU205897B
公开(公告)日:1992-07-28
申请号:HU644290
申请日:1990-10-12
Applicant: BASF AG
Inventor: KAST JUERGEN , SCHUBERT JUERGEN , KACZMAREK REINHARD
IPC: C07C327/24 , C07C327/28 , C07C327/58
Abstract: Preparation of cyclohexanetrionecarboxylic acid thiol esters of the formula I in which R and R represent optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, benzyl or phenyl, and R additionally denotes hydrogen, by reacting a cyclohexanetrione compound II with hydroxylamine or hydroxylamine O-sulphonic acid in an inert solvent at temperatures from 0 to 150 DEG C to give cyclohexanetrione compounds III subsequently reacting the compounds III with a mercaptan IV R -SH IV in the presence of an anhydrous acid HX to give cyclohexanetrione imidothioester salts V where X represents the acid radical, and hydrolysing the compounds V to give the cyclohexanetrione carboxylic acid thiol esters I.
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公开(公告)号:DE19940641A1
公开(公告)日:2001-03-01
申请号:DE19940641
申请日:1999-08-26
Applicant: BASF AG
Inventor: PAUST JOACHIM , ERNST HANSGEORG , KACZMAREK REINHARD , JAEDICKE HAGEN
IPC: C07B61/00 , C07C231/08 , C07C233/18 , C07C233/47 , C07C233/69 , C07C233/83 , C07C231/12 , C07C233/46 , C07C233/17
Abstract: Preparation of N-acyl derivatives (I) using readily available starting materials. N-acyl derivatives of formula R -C(O)N(H)C(R )X (I) are prepared by reacting, in the presence of a compound of formula R -COOH (II), a carbonic acid amide of formula R -CONH2 (III) and a glyoxalmonoacetal derivative of formula R C(O)C(OR )OR (IV). R , R = H or optionally substituted alkyl or aryl; R ,R = 1 - 12C alkyl; and X = CH(OR ) or COOR . An Independent claim is also included for a compound of formula R -C(O)N(H)C(R )C(OR )OR (V).
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公开(公告)号:DE10144631A1
公开(公告)日:2003-03-27
申请号:DE10144631
申请日:2001-09-11
Applicant: BASF AG
Inventor: SCHAEFER MARTIN , BOETTCHER ARND , KRAMER ANDREAS , HOEHN ARTHUR , KACZMAREK REINHARD , HENKES ERHARD
IPC: B01J23/42 , B01J23/44 , B01J23/63 , C07B61/00 , C07D207/32 , C07D207/323 , C07D213/06 , C07D213/133 , C07D213/16 , C07D213/24
Abstract: Production of pyrroles (I) or pyridines (III), comprises dehydrogenating the corresponding pyrrolidines (II) or piperidines (IV) in the presence of a supported noble metal catalyst comprises performing the reaction in the presence of 1-50 wt.% water. Production of pyrroles of formula (I) or pyridines of formula (III), comprises dehydrogenating the corresponding pyrrolidines of formula (II) or piperidines of formula (IV) in the presence of a supported noble metal catalyst comprises performing the reaction in the presence of 1-50 wt.% water. R -R = H or 1-6C aliphatic group.
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公开(公告)号:HUT54980A
公开(公告)日:1991-04-29
申请号:HU644290
申请日:1990-10-12
Applicant: BASF AG
Inventor: KAST JUERGEN , SCHUBERT JUERGEN , KACZMAREK REINHARD
IPC: C07C327/24 , C07C327/28 , C07C327/58
Abstract: Preparation of cyclohexanetrionecarboxylic acid thiol esters of the formula I in which R and R represent optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, benzyl or phenyl, and R additionally denotes hydrogen, by reacting a cyclohexanetrione compound II with hydroxylamine or hydroxylamine O-sulphonic acid in an inert solvent at temperatures from 0 to 150 DEG C to give cyclohexanetrione compounds III subsequently reacting the compounds III with a mercaptan IV R -SH IV in the presence of an anhydrous acid HX to give cyclohexanetrione imidothioester salts V where X represents the acid radical, and hydrolysing the compounds V to give the cyclohexanetrione carboxylic acid thiol esters I.
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