CA2186205A1 - Process for the preparation of dialkyl succinylsuccinates - Google Patents
Process for the preparation of dialkyl succinylsuccinatesInfo
- Publication number
- CA2186205A1 CA2186205A1 CA002186205A CA2186205A CA2186205A1 CA 2186205 A1 CA2186205 A1 CA 2186205A1 CA 002186205 A CA002186205 A CA 002186205A CA 2186205 A CA2186205 A CA 2186205A CA 2186205 A1 CA2186205 A1 CA 2186205A1
- Authority
- CA
- Canada
- Prior art keywords
- alkali metal
- dialkyl
- aliphatic alcohol
- succinate
- succinylsuccinate
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims description 10
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 109
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 106
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims abstract description 71
- 150000003839 salts Chemical class 0.000 claims abstract description 48
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims abstract description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 126
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 80
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 32
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical compound COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 claims description 28
- 239000011541 reaction mixture Substances 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 21
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 20
- -1 quinacridone compound Chemical class 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 238000004821 distillation Methods 0.000 claims description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 230000003472 neutralizing effect Effects 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 5
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 4
- XPZQBGDNVOHQIS-UHFFFAOYSA-N 2,9-dichloro-5,12-dihydroquinolino[2,3-b]acridine-7,14-dione Chemical compound N1C2=CC=C(Cl)C=C2C(=O)C2=C1C=C(C(=O)C=1C(=CC=C(C=1)Cl)N1)C1=C2 XPZQBGDNVOHQIS-UHFFFAOYSA-N 0.000 claims description 4
- DKMROQRQHGEIOW-UHFFFAOYSA-N Diethyl succinate Chemical compound CCOC(=O)CCC(=O)OCC DKMROQRQHGEIOW-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- TXWSZJSDZKWQAU-UHFFFAOYSA-N 2,9-dimethyl-5,12-dihydroquinolino[2,3-b]acridine-7,14-dione Chemical compound N1C2=CC=C(C)C=C2C(=O)C2=C1C=C(C(=O)C=1C(=CC=C(C=1)C)N1)C1=C2 TXWSZJSDZKWQAU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 2
- BFEJTCHFLJECJN-UHFFFAOYSA-N 4,11-Dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione Chemical compound N1C2=C(Cl)C=CC=C2C(=O)C2=C1C=C(C(C=1C=CC=C(C=1N1)Cl)=O)C1=C2 BFEJTCHFLJECJN-UHFFFAOYSA-N 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 2
- 239000003960 organic solvent Substances 0.000 claims 2
- 239000000725 suspension Substances 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 10
- 239000002253 acid Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000006386 neutralization reaction Methods 0.000 abstract description 4
- 239000000049 pigment Substances 0.000 abstract description 4
- 239000010815 organic waste Substances 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000002904 solvent Substances 0.000 description 17
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 239000002002 slurry Substances 0.000 description 13
- WIWJFWANKMRGGS-UHFFFAOYSA-N 3,4-dimethyl-1,6-dioxecane-2,5,7,10-tetrone Chemical compound C1(CCC(=O)OC(C(C(C(=O)O1)C)C)=O)=O WIWJFWANKMRGGS-UHFFFAOYSA-N 0.000 description 11
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 11
- 239000000706 filtrate Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 238000010992 reflux Methods 0.000 description 10
- 238000001914 filtration Methods 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 5
- YEIYQKSCDPOVNO-UHFFFAOYSA-N 5,8,9,12-tetrahydroquinolino[2,3-b]acridine-7,14-dione Chemical compound N1C2=CC=CC=C2C(=O)C(C=C2N3)=C1C=C2C(=O)C1=C3C=CCC1 YEIYQKSCDPOVNO-UHFFFAOYSA-N 0.000 description 4
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 4
- 238000004817 gas chromatography Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011260 aqueous acid Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 230000002572 peristaltic effect Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- QSHKTWMVEGIPMA-UHFFFAOYSA-N 2,9-dichloro-5,6,12,13-tetrahydroquinolino[2,3-b]acridine-7,14-dione Chemical compound N1C2=CC=C(Cl)C=C2C(=O)C(C2)=C1CC1=C2NC2=CC=C(Cl)C=C2C1=O QSHKTWMVEGIPMA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 241000282320 Panthera leo Species 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004508 fractional distillation Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- LJRGBERXYNQPJI-UHFFFAOYSA-M sodium;3-nitrobenzenesulfonate Chemical compound [Na+].[O-][N+](=O)C1=CC=CC(S([O-])(=O)=O)=C1 LJRGBERXYNQPJI-UHFFFAOYSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PQOYAUVBHYFVOF-UHFFFAOYSA-N 2,5-dianilinocyclohexa-1,4-diene-1,4-dicarboxylic acid Chemical compound C1C(C(=O)O)=C(NC=2C=CC=CC=2)CC(C(O)=O)=C1NC1=CC=CC=C1 PQOYAUVBHYFVOF-UHFFFAOYSA-N 0.000 description 1
- XJJWQKGKHQTROG-UHFFFAOYSA-N 2,5-dihydroxycyclohexa-1,4-diene-1,4-dicarboxylic acid Chemical class OC(=O)C1=C(O)CC(C(O)=O)=C(O)C1 XJJWQKGKHQTROG-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QSNSCYSYFYORTR-UHFFFAOYSA-N 4-chloroaniline Chemical compound NC1=CC=C(Cl)C=C1 QSNSCYSYFYORTR-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 102100025597 Caspase-4 Human genes 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 101100273284 Homo sapiens CASP4 gene Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000008378 aryl ethers Chemical class 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- JAWHCRQIVXIBNR-UHFFFAOYSA-N dimethyl 2,5-dianilinocyclohexa-1,4-diene-1,4-dicarboxylate Chemical compound C1C(C(=O)OC)=C(NC=2C=CC=CC=2)CC(C(=O)OC)=C1NC1=CC=CC=C1 JAWHCRQIVXIBNR-UHFFFAOYSA-N 0.000 description 1
- MHKKFFHWMKEBDW-UHFFFAOYSA-N dimethyl 2,5-dioxocyclohexane-1,4-dicarboxylate Chemical compound COC(=O)C1CC(=O)C(C(=O)OC)CC1=O MHKKFFHWMKEBDW-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 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
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000006069 physical mixture Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012066 reaction slurry Substances 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/34—Esters of acyclic saturated polycarboxylic acids having an esterified carboxyl group bound to an acyclic carbon atom
- C07C69/40—Succinic acid esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/74—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring
- C07C69/757—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
- C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US423795P | 1995-09-25 | 1995-09-25 | |
| US60/004237 | 1995-09-25 | ||
| US2233996P | 1996-07-24 | 1996-07-24 | |
| US60/022339 | 1996-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2186205A1 true CA2186205A1 (en) | 1997-03-26 |
Family
ID=26672781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002186205A Abandoned CA2186205A1 (en) | 1995-09-25 | 1996-09-23 | Process for the preparation of dialkyl succinylsuccinates |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5783723A (enExample) |
| EP (1) | EP0764630B1 (enExample) |
| JP (1) | JPH09124558A (enExample) |
| KR (1) | KR100431907B1 (enExample) |
| CN (1) | CN1130330C (enExample) |
| AT (1) | ATE207869T1 (enExample) |
| CA (1) | CA2186205A1 (enExample) |
| DE (1) | DE69616470T2 (enExample) |
| DK (1) | DK0764630T3 (enExample) |
| ES (1) | ES2164859T3 (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9704665D0 (en) * | 1997-03-06 | 1997-04-23 | Clariant Int Ltd | Organic compounds |
| KR20020020361A (ko) | 2000-09-08 | 2002-03-15 | 윤종용 | 영상표시기기의 광대역 스위칭 드라이브 보상회로 |
| CN103380105B (zh) | 2011-03-14 | 2016-08-10 | 陶氏环球技术有限责任公司 | 对苯二甲酸和对苯二甲酸酯的生产方法 |
| CN104661992B (zh) * | 2012-10-29 | 2018-03-09 | 阿彻丹尼尔斯米德兰德公司 | 醇介导的羧酸与碳酸酯的酯化 |
| CN105189659B (zh) * | 2013-12-19 | 2018-05-18 | Dic株式会社 | 低胺含量的喹吖啶酮颜料以及其制造方法 |
| CN106147284A (zh) * | 2016-06-14 | 2016-11-23 | 高邮市助剂厂 | 一种颜料红202的合成工艺 |
| US11059942B2 (en) | 2018-08-21 | 2021-07-13 | University Of Florida Research Foundation, Incorporated | Aromatic polyesters from biosuccinic acid |
| CN110358366A (zh) * | 2019-07-05 | 2019-10-22 | 天津科技大学 | 一种化学变色荧光墨水和制备方法及其应用 |
| CN112094189B (zh) * | 2020-09-28 | 2023-04-07 | 河北彩客新材料科技股份有限公司 | 一种丁二酰丁二酸二甲酯的合成方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124581A (en) * | 1964-03-10 | Certificate of correction | ||
| DE3104644A1 (de) * | 1981-02-10 | 1982-08-19 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von dimethylsuccinylosuccinat, dessen dinatriumsalz, dianilinodihydroterephthalsaeuren, deren dimethylestern und salzen sowie von dianilinoterephthalsaeuren, deren dimethylestern und salzen |
| DE3423548A1 (de) * | 1984-06-26 | 1986-01-02 | Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München | Verfahren zur herstellung von succinylobernsteinsaeuredialkylestern |
| JPS61286343A (ja) * | 1985-06-12 | 1986-12-16 | Nippon Shokubai Kagaku Kogyo Co Ltd | サクシニルコハク酸ジエステルの製造方法 |
| WO1992009558A1 (de) * | 1990-11-23 | 1992-06-11 | Hoechst Aktiengesellschaft | Verfahren zur herstellung von 2,5-di-phenylamino-terephthalsäure und ihrer dialkylester in hoher reinheit |
| US5208365A (en) * | 1991-06-14 | 1993-05-04 | Hoechst Aktiengesellschaft | Process for the preparation of 2,5-di(phenylamino)-terephthalic acid and its dialkyl esters in high purity |
| TW226359B (enExample) * | 1991-08-22 | 1994-07-11 | Hoechst Ag |
-
1996
- 1996-09-17 EP EP96810618A patent/EP0764630B1/en not_active Expired - Lifetime
- 1996-09-17 DK DK96810618T patent/DK0764630T3/da active
- 1996-09-17 DE DE69616470T patent/DE69616470T2/de not_active Expired - Lifetime
- 1996-09-17 AT AT96810618T patent/ATE207869T1/de not_active IP Right Cessation
- 1996-09-17 ES ES96810618T patent/ES2164859T3/es not_active Expired - Lifetime
- 1996-09-23 CA CA002186205A patent/CA2186205A1/en not_active Abandoned
- 1996-09-24 CN CN96120337A patent/CN1130330C/zh not_active Expired - Lifetime
- 1996-09-24 US US08/719,044 patent/US5783723A/en not_active Expired - Lifetime
- 1996-09-24 KR KR1019960041862A patent/KR100431907B1/ko not_active Expired - Fee Related
- 1996-09-25 JP JP8252584A patent/JPH09124558A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0764630B1 (en) | 2001-10-31 |
| DK0764630T3 (da) | 2002-01-14 |
| ATE207869T1 (de) | 2001-11-15 |
| JPH09124558A (ja) | 1997-05-13 |
| KR100431907B1 (ko) | 2004-09-08 |
| CN1130330C (zh) | 2003-12-10 |
| US5783723A (en) | 1998-07-21 |
| EP0764630A1 (en) | 1997-03-26 |
| DE69616470T2 (de) | 2002-05-16 |
| MX9604280A (es) | 1997-09-30 |
| DE69616470D1 (de) | 2001-12-06 |
| KR970015561A (ko) | 1997-04-28 |
| CN1153770A (zh) | 1997-07-09 |
| ES2164859T3 (es) | 2002-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20040923 |