DE2640026C2 - Verfahren zur Herstellung von 6,10,14-Trimethylpentadecan-2-on - Google Patents
Verfahren zur Herstellung von 6,10,14-Trimethylpentadecan-2-onInfo
- Publication number
- DE2640026C2 DE2640026C2 DE19762640026 DE2640026A DE2640026C2 DE 2640026 C2 DE2640026 C2 DE 2640026C2 DE 19762640026 DE19762640026 DE 19762640026 DE 2640026 A DE2640026 A DE 2640026A DE 2640026 C2 DE2640026 C2 DE 2640026C2
- Authority
- DE
- Germany
- Prior art keywords
- ppm
- compound
- catalyst
- group
- chj
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000002360 preparation method Methods 0.000 title claims description 4
- WHWDWIHXSPCOKZ-UHFFFAOYSA-N hexahydrofarnesyl acetone Chemical compound CC(C)CCCC(C)CCCC(C)CCCC(C)=O WHWDWIHXSPCOKZ-UHFFFAOYSA-N 0.000 title description 6
- -1 olefin compound Chemical class 0.000 claims description 9
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- YPKLJNQZQCUDSY-UHFFFAOYSA-N 15,15-dimethylhexadecanal Chemical compound CC(C)(C)CCCCCCCCCCCCCC=O YPKLJNQZQCUDSY-UHFFFAOYSA-N 0.000 claims 1
- 239000003054 catalyst Substances 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 14
- 150000002576 ketones Chemical class 0.000 description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Diphosphoinositol tetrakisphosphate Chemical compound OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000006482 condensation reaction Methods 0.000 description 3
- 238000007037 hydroformylation reaction Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000007323 disproportionation reaction Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002815 homogeneous catalyst Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 description 1
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- MXCNYKNYSNAEPA-UHFFFAOYSA-N 2,6,10-trimethylundeca-1,5,9-triene Chemical compound CC(C)=CCCC(C)=CCCC(C)=C MXCNYKNYSNAEPA-UHFFFAOYSA-N 0.000 description 1
- 101150065749 Churc1 gene Proteins 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- KEVYVLWNCKMXJX-ZCNNSNEGSA-N Isophytol Natural products CC(C)CCC[C@H](C)CCC[C@@H](C)CCC[C@@](C)(O)C=C KEVYVLWNCKMXJX-ZCNNSNEGSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 102100038239 Protein Churchill Human genes 0.000 description 1
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 229930003756 Vitamin B7 Natural products 0.000 description 1
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005882 aldol condensation reaction Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- HYERJXDYFLQTGF-UHFFFAOYSA-N rhenium Chemical group [Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re][Re] HYERJXDYFLQTGF-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- CMQCNTNASCDNGR-UHFFFAOYSA-N toluene;hydrate Chemical compound O.CC1=CC=CC=C1 CMQCNTNASCDNGR-UHFFFAOYSA-N 0.000 description 1
- 229960001124 trientine Drugs 0.000 description 1
- 239000011735 vitamin B7 Substances 0.000 description 1
- 235000011912 vitamin B7 Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/20—Unsaturated compounds containing keto groups bound to acyclic carbon atoms
- C07C49/24—Unsaturated compounds containing keto groups bound to acyclic carbon atoms containing hydroxy groups
-
- 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
- C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
- C07C45/50—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide by oxo-reactions
-
- 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
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/65—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
- C07C45/66—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups by dehydration
-
- 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
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/20—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms
- C07C47/21—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
- C07C49/17—Saturated compounds containing keto groups bound to acyclic carbon atoms containing hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/20—Unsaturated compounds containing keto groups bound to acyclic carbon atoms
- C07C49/203—Unsaturated compounds containing keto groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3681775A GB1540227A (en) | 1975-09-08 | 1975-09-08 | Preparation of 6,10,14-trimethylpenta-deca-2-one |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2640026A1 DE2640026A1 (de) | 1977-03-17 |
| DE2640026C2 true DE2640026C2 (de) | 1985-07-25 |
Family
ID=10391417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762640026 Expired DE2640026C2 (de) | 1975-09-08 | 1976-09-06 | Verfahren zur Herstellung von 6,10,14-Trimethylpentadecan-2-on |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS6045169B2 (enExample) |
| BE (1) | BE845732A (enExample) |
| CH (1) | CH623021A5 (enExample) |
| DE (1) | DE2640026C2 (enExample) |
| ES (1) | ES451280A1 (enExample) |
| FR (1) | FR2322843A1 (enExample) |
| GB (1) | GB1540227A (enExample) |
| IT (1) | IT1124716B (enExample) |
| NL (1) | NL7609873A (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3006867C2 (de) * | 1980-02-23 | 1981-11-12 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von höheren gesättigten Ketonen |
| US6756411B2 (en) | 1995-06-29 | 2004-06-29 | Sasol Technology (Proprietary) Limited | Process for producing oxygenated products |
| DE19619013A1 (de) * | 1996-05-10 | 1997-11-13 | Basf Ag | Verfahren zur Herstellung von Hexahydrofarnesylaceton aus 6,7-Dihydro-geraniol sowie neue Zwischenprodukte für dieses Verfahren |
-
1975
- 1975-09-08 GB GB3681775A patent/GB1540227A/en not_active Expired
-
1976
- 1976-09-01 BE BE1007595A patent/BE845732A/xx not_active IP Right Cessation
- 1976-09-06 IT IT2691876A patent/IT1124716B/it active
- 1976-09-06 NL NL7609873A patent/NL7609873A/xx not_active Application Discontinuation
- 1976-09-06 DE DE19762640026 patent/DE2640026C2/de not_active Expired
- 1976-09-06 ES ES451280A patent/ES451280A1/es not_active Expired
- 1976-09-06 FR FR7626773A patent/FR2322843A1/fr active Granted
- 1976-09-06 CH CH1129376A patent/CH623021A5/de not_active IP Right Cessation
- 1976-09-06 JP JP10587276A patent/JPS6045169B2/ja not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1540227A (en) | 1979-02-07 |
| NL7609873A (nl) | 1977-03-10 |
| CH623021A5 (en) | 1981-05-15 |
| BE845732A (nl) | 1977-03-01 |
| ES451280A1 (es) | 1977-10-01 |
| JPS5233611A (en) | 1977-03-14 |
| FR2322843B1 (enExample) | 1980-11-07 |
| FR2322843A1 (fr) | 1977-04-01 |
| JPS6045169B2 (ja) | 1985-10-08 |
| DE2640026A1 (de) | 1977-03-17 |
| IT1124716B (it) | 1986-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2411530C2 (de) | (3-Methyl-2-butenyl)-(3-methyl-1,3-butadienyl)-äther, Verfahren zu seiner Herstellung und seine Verwendung | |
| DE2431242B2 (de) | 2,7,10,15,18,23-Hexamethyltetracosan und Verfahren zu seiner Herstellung | |
| DE3875281T2 (de) | Herstellung von pseudoiononen. | |
| DE2640026C2 (de) | Verfahren zur Herstellung von 6,10,14-Trimethylpentadecan-2-on | |
| DE3744212A1 (de) | Verfahren zur herstellung von 2-methylbutanal | |
| EP0100019B1 (de) | Verfahren zur Herstellung von alpha-substituierten beta-Dicarbonyl-, beta-Cyancarbonyl- und beta-Dicyanverbindungen | |
| CH648282A5 (de) | Verfahren zur herstellung von oxocyclopentenen. | |
| CH513791A (de) | Verfahren zur Herstellung von makrocyclischen Verbindungen | |
| EP0211205B1 (de) | Verfahren zur Herstellung von 2-Methyl-2-alkenalen | |
| DE602005005354T2 (de) | Verfahren zur herstellung von 1,4-dialkyl-2,3-diol-1,4-butandion | |
| US4011277A (en) | Preparation of squalane by hydrogenolysis | |
| EP0010656A1 (de) | Verfahren zur Herstellung von 4-Acyloxy-2-methyl-crotonaldehyden | |
| EP1004564A1 (de) | Verfahren zur Herstellung von Hydroxyethylcyclohexanen und Hydroxyethylpiperidinen | |
| DE10149349A1 (de) | Verfahren zur Herstellung von 6-Methylheptan-2-on und dessen Verwendung | |
| EP0204736B1 (de) | Verfahren zur herstellung von benzolderivaten | |
| EP0436860A1 (de) | Verfahren zur Herstellung von 2-(4-Chlorphenyl)-3-methyl-buttersäure | |
| DE2848095A1 (de) | Substituierte perhydro-naphtofurane | |
| DE3020298C2 (de) | Verfahren zur Herstellung von 2,2,4,5,5-Pentamethyl-3-formyl-3-pyrrolin | |
| DE2852587C3 (de) | Verfahren zur Herstellung von Methylheptenon | |
| DE2835848A1 (de) | Verfahren zur reinigung von aldehydhaltigen ketonen | |
| EP0155610B2 (de) | Verfahren zur Herstellung von 2-Hydroxy-(9H)-carbazol | |
| DE2413170C3 (de) | Diacetylendiol-Derivate, Verfahren zu ihrer Herstellung und ihre Verwendung | |
| DE844292C (de) | Verfahren zur Herstellung lactonartiger Erzeugnisse | |
| DE2235466A1 (de) | 3-phenylpropanale und 4-phenylbutanale sowie ein verfahren zu deren herstellung | |
| DE69111209T2 (de) | Herstellung und Reinigung von 3,4-Dihydrocumarin. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8128 | New person/name/address of the agent |
Representative=s name: JUNG, E., DIPL.-CHEM. DR.PHIL. SCHIRDEWAHN, J., DI |
|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8331 | Complete revocation |