WO2002088063A1 - Process for the production of ketones - Google Patents
Process for the production of ketones Download PDFInfo
- Publication number
- WO2002088063A1 WO2002088063A1 PCT/EP2002/004440 EP0204440W WO02088063A1 WO 2002088063 A1 WO2002088063 A1 WO 2002088063A1 EP 0204440 W EP0204440 W EP 0204440W WO 02088063 A1 WO02088063 A1 WO 02088063A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- choh
- alicyclic
- triazacyclononane
- branched
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 150000002576 ketones Chemical class 0.000 title description 8
- -1 peroxy compound Chemical class 0.000 claims abstract description 10
- 125000002723 alicyclic group Chemical group 0.000 claims abstract description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims abstract description 4
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 3
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 3
- WLDGDTPNAKWAIR-UHFFFAOYSA-N 1,4,7-trimethyl-1,4,7-triazonane Chemical compound CN1CCN(C)CCN(C)CC1 WLDGDTPNAKWAIR-UHFFFAOYSA-N 0.000 claims abstract 2
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 9
- 150000001735 carboxylic acids Chemical class 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 150000003333 secondary alcohols Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- DCZFGQYXRKMVFG-UHFFFAOYSA-N cyclohexane-1,4-dione Chemical compound O=C1CCC(=O)CC1 DCZFGQYXRKMVFG-UHFFFAOYSA-N 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 description 3
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- PMMYEEVYMWASQN-IMJSIDKUSA-N cis-4-Hydroxy-L-proline Chemical compound O[C@@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-IMJSIDKUSA-N 0.000 description 2
- BAUZLFKYYIVGPM-UHFFFAOYSA-N cyclononanone Chemical compound O=C1CCCCCCCC1 BAUZLFKYYIVGPM-UHFFFAOYSA-N 0.000 description 2
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PZQGSZRQKQZCOJ-UHFFFAOYSA-N cyclobutane-1,3-dione Chemical compound O=C1CC(=O)C1 PZQGSZRQKQZCOJ-UHFFFAOYSA-N 0.000 description 1
- SHQSVMDWKBRBGB-UHFFFAOYSA-N cyclobutanone Chemical compound O=C1CCC1 SHQSVMDWKBRBGB-UHFFFAOYSA-N 0.000 description 1
- VIDCUPKHAMMBHZ-UHFFFAOYSA-N cyclodecane-1,3-dione Chemical compound O=C1CCCCCCCC(=O)C1 VIDCUPKHAMMBHZ-UHFFFAOYSA-N 0.000 description 1
- UOLUVQJHQREQCL-UHFFFAOYSA-N cyclodecane-1,4-dione Chemical compound O=C1CCCCCCC(=O)CC1 UOLUVQJHQREQCL-UHFFFAOYSA-N 0.000 description 1
- KTBLJTVYLAOMLE-UHFFFAOYSA-N cyclodecane-1,5-dione Chemical compound O=C1CCCCCC(=O)CCC1 KTBLJTVYLAOMLE-UHFFFAOYSA-N 0.000 description 1
- KBSGQTAYVRWUEO-UHFFFAOYSA-N cyclodecane-1,6-dione Chemical compound O=C1CCCCC(=O)CCCC1 KBSGQTAYVRWUEO-UHFFFAOYSA-N 0.000 description 1
- DBOVMTXPZWVYAQ-UHFFFAOYSA-N cycloheptane-1,3-dione Chemical compound O=C1CCCCC(=O)C1 DBOVMTXPZWVYAQ-UHFFFAOYSA-N 0.000 description 1
- JFZCBLXXTGLKOG-UHFFFAOYSA-N cycloheptane-1,4-dione Chemical compound O=C1CCCC(=O)CC1 JFZCBLXXTGLKOG-UHFFFAOYSA-N 0.000 description 1
- CGZZMOTZOONQIA-UHFFFAOYSA-N cycloheptanone Chemical compound O=C1CCCCCC1 CGZZMOTZOONQIA-UHFFFAOYSA-N 0.000 description 1
- HJSLFCCWAKVHIW-UHFFFAOYSA-N cyclohexane-1,3-dione Chemical compound O=C1CCCC(=O)C1 HJSLFCCWAKVHIW-UHFFFAOYSA-N 0.000 description 1
- YGVJHVAGBZEZFZ-UHFFFAOYSA-N cyclononane-1,3-dione Chemical compound O=C1CCCCCCC(=O)C1 YGVJHVAGBZEZFZ-UHFFFAOYSA-N 0.000 description 1
- DMWAGNKQUHYLMS-UHFFFAOYSA-N cyclononane-1,4-dione Chemical compound O=C1CCCCCC(=O)CC1 DMWAGNKQUHYLMS-UHFFFAOYSA-N 0.000 description 1
- PQOZOIXDFLJALL-UHFFFAOYSA-N cyclononane-1,5-dione Chemical compound O=C1CCCCC(=O)CCC1 PQOZOIXDFLJALL-UHFFFAOYSA-N 0.000 description 1
- OOOLFZKAFMJAJK-UHFFFAOYSA-N cyclooctane-1,3-dione Chemical compound O=C1CCCCCC(=O)C1 OOOLFZKAFMJAJK-UHFFFAOYSA-N 0.000 description 1
- LZTHLBQVLFQNKK-UHFFFAOYSA-N cyclooctane-1,4-dione Chemical compound O=C1CCCCC(=O)CC1 LZTHLBQVLFQNKK-UHFFFAOYSA-N 0.000 description 1
- HNIJGYLFFVBUNQ-UHFFFAOYSA-N cyclooctane-1,5-dione Chemical compound O=C1CCCC(=O)CCC1 HNIJGYLFFVBUNQ-UHFFFAOYSA-N 0.000 description 1
- IIRFCWANHMSDCG-UHFFFAOYSA-N cyclooctanone Chemical compound O=C1CCCCCCC1 IIRFCWANHMSDCG-UHFFFAOYSA-N 0.000 description 1
- LOGSONSNCYTHPS-UHFFFAOYSA-N cyclopentane-1,3-dione Chemical compound O=C1CCC(=O)C1 LOGSONSNCYTHPS-UHFFFAOYSA-N 0.000 description 1
- VBBRYJMZLIYUJQ-UHFFFAOYSA-N cyclopropanone Chemical compound O=C1CC1 VBBRYJMZLIYUJQ-UHFFFAOYSA-N 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000005594 diketone group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/29—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups
- C07C45/294—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups with hydrogen peroxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/29—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups
Definitions
- the invention relates to a process for the production of aliphatic and alicyclic ketones by oxidizing the corresponding secondary alcohols with a peroxy compound in the presence of a catalyst.
- ketones obtainable by the process of the invention have the general formula
- R is a linear or branched C ⁇ _ 10 -alkyl group and R is a linear or branched Cj_ 10 -alkyl group or a phenyl group
- m and j? independently are integers from 1 to 4 and n is 0 or 1, thus forming an alicyclic ring together with the carbonyl group of (I).
- ketones are valuable compounds for a large number of applications, for example as solvents, building blocks for organic syntheses, fragrances etc.
- Linear or branched -io-alkyl groups are, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, -sec-butyl, tert-butyl, pentyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethyl- propyl, hexyl, heptyl, octyl, nonyl and decyl, including all isomers of these groups.
- alicyclic ketones include cyclopropanone, cyclobutanone, cyclo- pentanone, cyclohexanone, cycloheptanone, cyclooctanone, cyclononanone, 1,3-cyclobutane- dione, 1,3-cyclopentanedione, 1,3-cyclohexanedione, 1,4-cyclohexanedione, 1,3-cyclo- heptanedione, 1 ,4-cycloheptanedione, 1,3-cyclooctanedione, 1,4-cyclooctanedione, 1,5-cyclo- octanedione, 1,3-cyclononandione, 1,4-cyclononanedione, 1,5-cyclononanedione, 1,3-cyclo- decanedione, 1,4-cyclodecanedione, 1,5-cyclodecanedione and
- ketones (I) While some of the above mentioned ketones (I) are being produced by the chemical industry in large amounts (e. g. acetone, cyclohexanone) using processes giving good yields, some others are only available by tedious procedures and/or in poor yields.
- the object of the present invention was to provide a versatile process for the production of these ketones in good yields and without expensive reactants.
- rule-(CHOH) whenever the product is a alicyclic diketone, are together -(CH 2 ),
- m, n and j? are as defined above, can smoothly be oxidized by peroxy compounds in the presence of a carboxylic acid and a manganese(iv) complex of 1 ,4,7-trimethyl-l,4,7-triazacyclononane (Me 3 tacn) to give the corresponding ketones (I) in good to excellent yields.
- Preferred peroxy compounds are hydrogen peroxide and peroxycarboxylic acids and mixtures thereof. It should be noted that hydrogen peroxide reacts with carboxylic acids to give peroxycarboxylic acids in an equilibrium reaction.
- the most preferred carboxylic acid is acetic acid.
- the preferred manganese(iv) complex of Me 3 tacn is the dinuclear complex
- the process according to the invention may be carried out in polar aprotic solvents such as acetonitrile, nitromethane or mixtures thereof, acetonitrile being especially preferred.
- polar aprotic solvents such as acetonitrile, nitromethane or mixtures thereof, acetonitrile being especially preferred.
- the process of the invention may be carried out at or near room temperature, e. g., at 0 ⁇ 0 °C, the reaction times being typically a few hours or less.
- the work-up can be done according to methods well known in the art, preferably after addition of a suitable reducing agent to destroy any excess of peroxy compound in order to avoid further oxidation and potential explosion hazards.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/476,025 US7015358B2 (en) | 2001-04-27 | 2002-04-23 | Process for the production of ketones |
EP02735283A EP1385812A1 (en) | 2001-04-27 | 2002-04-23 | Process for the production of ketones |
JP2002585367A JP2004525986A (en) | 2001-04-27 | 2002-04-23 | Method for producing ketone |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28653901P | 2001-04-27 | 2001-04-27 | |
US60/286,539 | 2001-04-27 | ||
EP01111776 | 2001-05-15 | ||
EP01111776.9 | 2001-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002088063A1 true WO2002088063A1 (en) | 2002-11-07 |
Family
ID=56290274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/004440 WO2002088063A1 (en) | 2001-04-27 | 2002-04-23 | Process for the production of ketones |
Country Status (4)
Country | Link |
---|---|
US (1) | US7015358B2 (en) |
EP (1) | EP1385812A1 (en) |
JP (1) | JP2004525986A (en) |
WO (1) | WO2002088063A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2273006A1 (en) | 2009-06-17 | 2011-01-12 | Unilever PLC | Bleaching of substrates |
DE102009057220A1 (en) | 2009-12-05 | 2011-06-09 | Clariant International Ltd. | Non-hygroscopic transition metal complexes, process for their preparation and their use |
DE102009057222A1 (en) | 2009-12-05 | 2011-06-09 | Clariant International Ltd. | Bleach catalyst compounds, process for their preparation and their use |
US7972386B2 (en) | 2005-10-12 | 2011-07-05 | Conopco, Inc. | Bleaching of substrates |
US7976582B2 (en) | 2007-01-16 | 2011-07-12 | Conopco, Inc. | Bleaching of substrates |
EP2377614A1 (en) | 2010-04-16 | 2011-10-19 | Unilever Plc, A Company Registered In England And Wales under company no. 41424 of Unilever House | Bleaching of substrates |
US8455423B2 (en) | 2005-05-27 | 2013-06-04 | Conopco, Inc. | Process of bleaching |
US9012630B2 (en) | 2009-09-18 | 2015-04-21 | Clariant International Ltd. | Method for producing bridged manganese complexes of triazacyclononane |
US9469666B2 (en) | 2010-03-03 | 2016-10-18 | Catexel Limited | Preparation of bleaching catalysts |
US10144005B2 (en) | 2011-09-08 | 2018-12-04 | Richard William Kemp | Catalysts |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100486950C (en) * | 2007-01-22 | 2009-05-13 | 河北大学 | Process of synthesizing 1,4-cyclohexyl dione |
KR101708955B1 (en) | 2009-06-05 | 2017-02-21 | 솔베이(소시에떼아노님) | Process for the manufacture of oxidized starch, oxidized starch and its use |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10024617A1 (en) * | 1999-05-19 | 2000-12-28 | Basf Ag | Production of carboxylic acid and/or aldehydes comprises oxidation in the presence of a catalyst comprising a manganese salt, 1,4,7-tri(1-20C alkyl)-1,4,7-triazacyclononane and co-ligands |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69125310T2 (en) * | 1990-05-21 | 1997-07-03 | Unilever Nv | Bleach activation |
US6620972B2 (en) * | 2001-06-28 | 2003-09-16 | The Board Of Trustees Of The University Of Illinois | Method of oxidizing an alcohol using a recyclable fluorous sulfoxide |
-
2002
- 2002-04-23 WO PCT/EP2002/004440 patent/WO2002088063A1/en active Application Filing
- 2002-04-23 JP JP2002585367A patent/JP2004525986A/en not_active Withdrawn
- 2002-04-23 US US10/476,025 patent/US7015358B2/en not_active Expired - Fee Related
- 2002-04-23 EP EP02735283A patent/EP1385812A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10024617A1 (en) * | 1999-05-19 | 2000-12-28 | Basf Ag | Production of carboxylic acid and/or aldehydes comprises oxidation in the presence of a catalyst comprising a manganese salt, 1,4,7-tri(1-20C alkyl)-1,4,7-triazacyclononane and co-ligands |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8455423B2 (en) | 2005-05-27 | 2013-06-04 | Conopco, Inc. | Process of bleaching |
US8722608B2 (en) | 2005-05-27 | 2014-05-13 | Conopco, Inc. | Process of bleaching |
US7972386B2 (en) | 2005-10-12 | 2011-07-05 | Conopco, Inc. | Bleaching of substrates |
US7976582B2 (en) | 2007-01-16 | 2011-07-12 | Conopco, Inc. | Bleaching of substrates |
EP2273006A1 (en) | 2009-06-17 | 2011-01-12 | Unilever PLC | Bleaching of substrates |
US9012630B2 (en) | 2009-09-18 | 2015-04-21 | Clariant International Ltd. | Method for producing bridged manganese complexes of triazacyclononane |
US8889611B2 (en) | 2009-12-05 | 2014-11-18 | Clariant International Ltd | Bleach catalyst compounds, method for the production thereof and use thereof |
DE102009057222A1 (en) | 2009-12-05 | 2011-06-09 | Clariant International Ltd. | Bleach catalyst compounds, process for their preparation and their use |
DE102009057220A1 (en) | 2009-12-05 | 2011-06-09 | Clariant International Ltd. | Non-hygroscopic transition metal complexes, process for their preparation and their use |
US9469666B2 (en) | 2010-03-03 | 2016-10-18 | Catexel Limited | Preparation of bleaching catalysts |
WO2011128649A1 (en) | 2010-04-16 | 2011-10-20 | Unilever Plc | Bleaching of substrates |
EP2377614A1 (en) | 2010-04-16 | 2011-10-19 | Unilever Plc, A Company Registered In England And Wales under company no. 41424 of Unilever House | Bleaching of substrates |
US9115463B2 (en) | 2010-04-16 | 2015-08-25 | Catexel Limited | Bleaching of substrates |
US10144005B2 (en) | 2011-09-08 | 2018-12-04 | Richard William Kemp | Catalysts |
Also Published As
Publication number | Publication date |
---|---|
US20040138506A1 (en) | 2004-07-15 |
JP2004525986A (en) | 2004-08-26 |
US7015358B2 (en) | 2006-03-21 |
EP1385812A1 (en) | 2004-02-04 |
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