公开(公告)号：JPH1053553A

公开(公告)日：1998-02-24

申请号：JP12439297

申请日：1997-05-14

Applicant: DEGUSSA

Inventor： HAHN RAINER DR ,  GORA ULRICH ,  HUTHMACHER KLAUS DR ,  HUEBNER FRANK DR ,  KRILL STEFFEN DR

IPC: B01J31/22 ,  C07B61/00 ,  C07C45/34 ,  C07C49/603

Abstract: PROBLEM TO BE SOLVED: To provide an improved method for producing 3,5,5- trimethylcyclohex-2-ene-1,4-dione (KIP) by oxidizing 3,5,5-trimethylcyclohex-3- ene-1-one (β-IP) in the presence of a manganese complex-like catalyst and an additive having a fixed catalytic action. SOLUTION: 3,5,5-Trimethylcyclohex 3-ene-1-one is oxidized in the presence of a manganese complex-like catalyst and another compound X having a catalytic action selected from the group consisting of an organic acid having 2-7pKa value, an aldehyde corresponding to the organic acid, a 1-4C-containing aliphatic alcohol or phenol, a compound capable of forming an enol structure and lithium sulfate. In the case, the amount of the compound X used is in a molar ratio to the catalyst of (1:1) to (100:1) and the amount of β-IP based on the whole amount of the mixture is at least more than 15%.

公开(公告)号：DE59702371D1

公开(公告)日：2000-10-26

申请号：DE59702371

申请日：1997-04-08

Applicant: DEGUSSA

Inventor： HAHN DR ,  GORA ULRICH ,  HUTHMACHER DR ,  HUEBNER DR ,  KRILL DR

IPC: B01J31/22 ,  C07B61/00 ,  C07C45/34 ,  C07C49/603

Abstract: Preparation of 3,5,5-trimethylcyclohex-2-en-1,4-dione (I) comprises oxidation of 3,5,5-trimethylcyclohex-3-en-1-one (II) by molecular oxygen in the presence of manganese (salen) or its derivatives as catalyst, an alkylamine and water in an inert solvent in the presence of another catalytic compound X where X = an organic acid with pKa of 2-7, or 1-4C aliphatic alcohol, or phenol, or compounds where an enolic structure is possible, where X is present in a molar ratio of 1:1 to 100:1 with the catalyst and (II) is >15wt.% of the total.

公开(公告)号：DE59501484D1

公开(公告)日：1998-04-02

申请号：DE59501484

申请日：1995-09-19

Applicant: DEGUSSA

Inventor： HUEBNER FRANK DR ,  GORA ULRICH ,  HUTHMACHER KLAUS DR ,  DRAUZ KARLHEINZ PROF DR

IPC: C07F15/06 ,  C07C251/24

Abstract: Prodn. of salcomin comprises reacting ethylene diamine (I) with salicylaldehyde (II) in mole ratio (I):(II) of about 1:2, in the presence of a cobalt salt (III) and a solvent (IV). The temp. is 60-150 degrees C. (III) is cobalt carbonate, basic cobalt carbonate of formula CoCO3.CO(OH)2 and/or cobalt acetate; and (IV) is one or more aliphatic and/or cycloaliphatic alcohol of formula ROH, and/or one or more 6-15C aromatic hydrocarbon. R = 3-12C alkyl or 3-12C cycloalkyl.

公开(公告)号：AT196460T

公开(公告)日：2000-10-15

申请号：AT97105752

申请日：1997-04-08

Applicant: DEGUSSA

Inventor： HAHN RAINER DR ,  GORA ULRICH ,  HUTHMACHER KLAUS DR ,  HUEBNER FRANK DR ,  KRILL STEFFEN DR

IPC: B01J31/22 ,  C07B61/00 ,  C07C45/34 ,  C07C49/603

Abstract: Preparation of 3,5,5-trimethylcyclohex-2-en-1,4-dione (I) comprises oxidation of 3,5,5-trimethylcyclohex-3-en-1-one (II) by molecular oxygen in the presence of manganese (salen) or its derivatives as catalyst, an alkylamine and water in an inert solvent in the presence of another catalytic compound X where X = an organic acid with pKa of 2-7, or 1-4C aliphatic alcohol, or phenol, or compounds where an enolic structure is possible, where X is present in a molar ratio of 1:1 to 100:1 with the catalyst and (II) is >15wt.% of the total.

公开(公告)号：DK0808816T3

公开(公告)日：2001-01-22

申请号：DK97105752

申请日：1997-04-08

Applicant: DEGUSSA

Inventor： HAHN RAINER DR ,  HUTHMACHER KLAUS DR ,  HUEBNER FRANK DR ,  KRILL STEFFEN DR ,  GORA ULRICH

IPC: B01J31/22 ,  C07B61/00 ,  C07C45/34 ,  C07C49/603

Abstract: Preparation of 3,5,5-trimethylcyclohex-2-en-1,4-dione (I) comprises oxidation of 3,5,5-trimethylcyclohex-3-en-1-one (II) by molecular oxygen in the presence of manganese (salen) or its derivatives as catalyst, an alkylamine and water in an inert solvent in the presence of another catalytic compound X where X = an organic acid with pKa of 2-7, or 1-4C aliphatic alcohol, or phenol, or compounds where an enolic structure is possible, where X is present in a molar ratio of 1:1 to 100:1 with the catalyst and (II) is >15wt.% of the total.

公开(公告)号：DE19619570A1

公开(公告)日：1997-11-20

申请号：DE19619570

申请日：1996-05-15

Applicant: DEGUSSA

Inventor： HAHN RAINER DR ,  GORA ULRICH ,  HUTHMACHER KLAUS DR ,  HUEBNER FRANK DR ,  KRILL STEFFEN DR

IPC: B01J31/22 ,  C07B61/00 ,  C07C45/34 ,  C07C49/603

Abstract: Preparation of 3,5,5-trimethylcyclohex-2-en-1,4-dione (I) comprises oxidation of 3,5,5-trimethylcyclohex-3-en-1-one (II) by molecular oxygen in the presence of manganese (salen) or its derivatives as catalyst, an alkylamine and water in an inert solvent in the presence of another catalytic compound X where X = an organic acid with pKa of 2-7, or 1-4C aliphatic alcohol, or phenol, or compounds where an enolic structure is possible, where X is present in a molar ratio of 1:1 to 100:1 with the catalyst and (II) is >15wt.% of the total.

公开(公告)号：DE4435158A1

公开(公告)日：1996-04-04

申请号：DE4435158

申请日：1994-09-30

Applicant: DEGUSSA

Inventor： HUEBNER FRANK DR ,  GORA ULRICH ,  HUTHMACHER KLAUS DR ,  DRAUZ KARLHEINZ PROF DR

IPC: C07F15/06 ,  C07C251/24 ,  C07C251/16 ,  C07C249/02 ,  B01J31/22

Abstract: Prodn. of salcomin comprises reacting ethylene diamine (I) with salicylaldehyde (II) in mole ratio (I):(II) of about 1:2, in the presence of a cobalt salt (III) and a solvent (IV). The temp. is 60-150 degrees C. (III) is cobalt carbonate, basic cobalt carbonate of formula CoCO3.CO(OH)2 and/or cobalt acetate; and (IV) is one or more aliphatic and/or cycloaliphatic alcohol of formula ROH, and/or one or more 6-15C aromatic hydrocarbon. R = 3-12C alkyl or 3-12C cycloalkyl.