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    PRODUCTION OF 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE
    1.
    发明专利
    PRODUCTION OF 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE 失效

    公开(公告)号：JPH10130237A

    公开(公告)日：1998-05-19

    申请号：JP29544197

    申请日：1997-10-28

    Applicant: BASF AG

    Inventor： JULIUS MANFRED DR

    IPC: C07D211/58 ,  C07D211/72

    Abstract: PROBLEM TO BE SOLVED: To produce the subject compound in a high selectivity and good yield according to a new method for reacting 2,2,6,6-tetramethylpiperidine-4-one (TAA) with 4- amino-2,2,6,6-tetramethylpiperidine (TDA) through 2,2,6,6-tetramethyl-4-[(2,2,6,6- tetramethyl-4-piperidylidene) amino]-piperidine which is an intermediate while eliminating an impurity such as water requiring the separation for producing a light stabilizer. SOLUTION: 2,2,6,6-tetramethylpiperidine-4-one represented by formula I is reacted with 4-amino-2,2,6,6-tetramethylpiperidine represented by formula II to provide 2,2,6,6- tetramethyl-4-[[2,2,6,6-tetramethyl-4-piperidylidene] amino] piperidine represented by formula III, which is then reacted with NH3 and hydrogen in the presence of a hydrogenating catalyst to afford a compound represented by formula II. In order to obtain 2mol equiv. compound represented by formula II, the respective amounts of the compounds represented by formula I and II are 1mol equiv. and the reaction is carried out according to a reactional formula represented by formula IV. The compound represented by formula III is produced by carrying out the reaction in the absence of a catalyst at 30-90 deg.C and then aminating hydrogenation is directly conducted at 100 deg.C under 250 bars by using an excessive amount of NH3 to afford the compound represented by formula II.

    ACETYLATION OF DIAMINE HAVING STERIC HINDRANCE
    2.
    发明专利
    ACETYLATION OF DIAMINE HAVING STERIC HINDRANCE 失效

    公开(公告)号：JPH10139744A

    公开(公告)日：1998-05-26

    申请号：JP29437297

    申请日：1997-10-27

    Applicant: BASF AG

    Inventor： JULIUS MANFRED DR

    IPC: C07C231/04 ,  C07C233/00 ,  C07D211/58

    Abstract: PROBLEM TO BE SOLVED: To obtain an amide by reacting a specific diamine with a ketene to acetylate a sterically non-hindered amino functional group of the diamine. SOLUTION: This method for acetylating a diamine having a sterically hindered amino functional group (existing in a heterogeneous ring) and a sterically non-hindered amino functional group (e.g. 4-amino-2,2,6,6,- tetramethylpiperidine) comprises reacting the diamine with a ketene in an aprotic solvent (especially tetrahydrofuran) at -30 to 65 deg.C (preferably in the atmospheric pressure and/or by a batch type method. Thus, the objective compound (especially 4-acetamido-2,2,6,6-tetramethylpiperidine) is profitably obtained.

    PRODUCTION OF BIS(2,2,6,6-TETRAMETHYL-4-PIPERIDYL) AMINE
    3.
    发明专利
    PRODUCTION OF BIS(2,2,6,6-TETRAMETHYL-4-PIPERIDYL) AMINE 失效

    公开(公告)号：JPH10130238A

    公开(公告)日：1998-05-19

    申请号：JP29419397

    申请日：1997-10-27

    Applicant: BASF AG

    Inventor： JULIUS MANFRED DR

    IPC: C07D211/02 ,  C07D211/58

    Abstract: PROBLEM TO BE SOLVED: To produce the subject high-purity compound, useful as an intermediate important for producing various light stabilizers and hardly containing colored impurities according to an inexpensively practicable method without using an elaborate apparatus. SOLUTION: A compound represented by formula I is reacted with H2 in the presence of a hydrogenating catalyst to afford a compound represented formula II. The reaction is preferably carried out at a temperature within the range of 20-150 deg.C and the pressure is preferably within the range of 1-300bars. the hydrogenation of the compound represented by formula I for producing the compound represented by formula II is conducted in an autoclave by using a suspended catalyst, etc., according to a batch method or continuously carried out on a fixed bed catalyst in a cylindrical reactional furnace. the chemical reaction is carried out according to a chemical formula represented by formula III.

    PRODUCTION OF 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE AND 2,2,6,6-TETRAMETHYL-4-PIPERIDINE IMINE
    4.
    发明专利
    PRODUCTION OF 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE AND 2,2,6,6-TETRAMETHYL-4-PIPERIDINE IMINE 失效

    公开(公告)号：JPH10291976A

    公开(公告)日：1998-11-04

    申请号：JP5339098

    申请日：1998-03-05

    Applicant: BASF AG

    Inventor： VOIT GUIDO DR ,  WITZEL TOM DR ,  JULIUS MANFRED DR

    IPC: C07D211/12 ,  B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J31/02 ,  C07B61/00 ,  C07D211/58

    Abstract: PROBLEM TO BE SOLVED: To obtain 4-amino-2,2,6,6-tetramethylpiperidine from 2,2,6,6- tetramethyl-4-piperidinone by an industrially excellent method in terms of cost by using a specific catalyst. SOLUTION: This 4-amino-2,2,6,6-tetramethylpiperidine of formula I is obtained by reacting 2,2,6,6-tetramethyl-4-piperidinone of formula II with ammonia in the presence of an acidic metal oxide catalyst or a solid acidic catalyst insoluble in a reaction mixture (except an ammonium-type inorganic and organic ion-exchanging substance) to obtain an imine substance of formula III, and subjecting to hydrogen addition in the presence of a hydrogenation catalyst. Preferably, aluminum oxide, silicon dioxide, bentonite, aluminum hydrosilicate of montmorillonite-type, aluminum silicate of erionite-type, etc., is used as the catalyst for obtaining the imine substance by the reaction.

    PRODUCTION OF 1-ACETYL-4-PIPERIDONE
    5.
    发明专利
    PRODUCTION OF 1-ACETYL-4-PIPERIDONE 失效

    公开(公告)号：JPH10130239A

    公开(公告)日：1998-05-19

    申请号：JP22345797

    申请日：1997-08-20

    Applicant: BASF AG

    Inventor： JULIUS MANFRED DR

    IPC: C07D221/20 ,  B01J27/16 ,  C07B61/00 ,  C07D211/74

    Abstract: PROBLEM TO BE SOLVED: To avoid the production of an O-acetylated enol and simply and economically produce the subject compound by reacting 4-piperidone with a ketene in the presence of an acidic catalyst. SOLUTION: An unacetylated 4-piperidone is reacted with a ketene in the presence of an acidic catalyst at 20-120 deg.C to provide a compound represented by the formula. The catalyst used is the one having

    PRODUCTION OF CYANOACETIC ACID ESTER
    6.
    发明专利
    PRODUCTION OF CYANOACETIC ACID ESTER 失效

    公开(公告)号：JP2000143603A

    公开(公告)日：2000-05-26

    申请号：JP31254499

    申请日：1999-11-02

    Applicant: BASF AG

    Inventor： JULIUS MANFRED DR ,  SCHNEIDER ROLF ,  MUNDINGER KLAUS DR ,  FISCHER JAKOB

    IPC: B01J31/02 ,  C07B61/00 ,  C07C253/14 ,  C07C255/17 ,  C07C255/19

    Abstract: PROBLEM TO BE SOLVED: To produce a cyanoacetic acid ester useful as an intermediate for producing an effective substance, an active substance such as caffeine, or a photoprotective substance advantageously on an industrial scale by reacting a corresponding monochloroacetic acid ester with hydrogen cyanide in the presence of a specific base. SOLUTION: A corresponding monochloroacetic acid ester is made to react with hydrogen cyanide in the presence of a basic compound (the amount of the base is commonly 50-300 mol.% based on the monochloroacetic acid ester) selected from a group consisting of tertiary amines (e.g. trialkylamine), salts of carbonic acid (e.g. an alkali metal carbonate), salts of a carbonic acid half ester) (e.g. an alkali metal alkylcarbonic acid salt), salts of a carboxylic acid (e.g. an alkali metal carboxylate), amidines (e.g. peralkylated amidine or a bicyclic amidine), guanidines (e.g. peralkylated guanidine) and aromatic N- heterocyclic compounds (e.g. pyridine) generally at -78 deg.C to 20 deg.C under 0.05-2 MPa for 10 min to 2 hr or more.

    Poly:alkyl:amine derivatives
    9.
    发明专利
    Poly:alkyl:amine derivatives 未知

    公开(公告)号：DE19606846A1

    公开(公告)日：1997-08-28

    申请号：DE19606846

    申请日：1996-02-23

    Applicant: BASF AG

    Inventor： JULIUS MANFRED DR ,  ETTL ROLAND DR ,  GUENTHER WOLFGANG DR ,  GREINDL THOMAS DR

    IPC: C07C235/88 ,  C08F8/30 ,  C10L1/22 ,  C10L1/224 ,  C10L1/238 ,  C10L1/2383 ,  C10L1/2387 ,  C10L10/00 ,  C10M133/16 ,  C10M133/52 ,  C07D305/12 ,  C08F8/32 ,  C10M133/56 ,  C10M149/00

    Abstract: Polyalkylamine derivatives of formula ZCH2NH2-nHn (I) are new. (where, n = 0 or 1; z = polyalkyl residue of molecular weight 150-40000; Y = residue of formula (IIa) or (IIb); R, R1 and R2 = H, optionally substituted alk(en)yl, alkinyl, and optionally substituted cycloalkyl, aryl(alkyl) having heteroatom(s); A = alkylene imine residues of formula (III); m = 0-10; Alk = optionally substituted alkylene; R3 = H, alk(en)yl, alkinyl, or aryl or when Y is a residue of formula (IIa) keto residue of formula (IVa); in (IVa): R = as above or when Y = group of formula (IIb), is a cyano residue of formula (IVb) (where, R1 and R2 = as above) or when n = 0 one of the residues Y is optionally a polyoxyalkylene residue (V) (where, q = 1-30; Alk = as above; and E = H or 1-6C alkyl). Preparation of the derivatives is also claimed. Also claimed are lubricant and fuel compositions containing the above derivatives.

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