FR2462415A1 - Procede de preparation d'acides hydroxyarylglycoliques racemiques et produits nouveaux en resultant - Google Patents
Procede de preparation d'acides hydroxyarylglycoliques racemiques et produits nouveaux en resultant Download PDFInfo
- Publication number
- FR2462415A1 FR2462415A1 FR7919171A FR7919171A FR2462415A1 FR 2462415 A1 FR2462415 A1 FR 2462415A1 FR 7919171 A FR7919171 A FR 7919171A FR 7919171 A FR7919171 A FR 7919171A FR 2462415 A1 FR2462415 A1 FR 2462415A1
- Authority
- FR
- France
- Prior art keywords
- hydroxy
- acid
- mandelic acid
- ortho
- para
- 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.)
- Granted
Links
- 239000002253 acid Substances 0.000 title claims abstract description 20
- 150000007513 acids Chemical class 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 19
- 229910001868 water Inorganic materials 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229960002510 mandelic acid Drugs 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 150000004682 monohydrates Chemical class 0.000 claims abstract description 3
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical compound OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 claims description 60
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- RBQYTVXHDIGUCS-UHFFFAOYSA-N 2-hydroxy-2-(4-hydroxy-3-methylphenyl)acetic acid Chemical compound CC1=CC(C(O)C(O)=O)=CC=C1O RBQYTVXHDIGUCS-UHFFFAOYSA-N 0.000 claims description 3
- VDBWQCRJTMKEMJ-UHFFFAOYSA-N 2-(3-chloro-4-hydroxyphenyl)-2-hydroxyacetic acid Chemical compound OC(=O)C(O)C1=CC=C(O)C(Cl)=C1 VDBWQCRJTMKEMJ-UHFFFAOYSA-N 0.000 claims description 2
- XMDBHYXOIVMFPR-UHFFFAOYSA-N 2-hydroxy-2-(2-hydroxy-5-methylphenyl)acetic acid Chemical compound CC1=CC=C(O)C(C(O)C(O)=O)=C1 XMDBHYXOIVMFPR-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 2
- 229910052700 potassium Inorganic materials 0.000 claims 2
- 239000011591 potassium Substances 0.000 claims 2
- SHICEABVTBDWCE-UHFFFAOYSA-N 2-(4-ethyl-2-hydroxyphenyl)-2-hydroxyacetic acid Chemical compound CCC1=CC=C(C(O)C(O)=O)C(O)=C1 SHICEABVTBDWCE-UHFFFAOYSA-N 0.000 claims 1
- OOPJZFNKCAXFEP-UHFFFAOYSA-N 2-hydroxy-2-(4-hydroxy-3,5-dimethoxyphenyl)acetic acid Chemical compound COC1=CC(C(O)C(O)=O)=CC(OC)=C1O OOPJZFNKCAXFEP-UHFFFAOYSA-N 0.000 claims 1
- 150000002440 hydroxy compounds Chemical class 0.000 claims 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 abstract description 4
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 abstract 3
- IWYDHOAUDWTVEP-UHFFFAOYSA-N R-2-phenyl-2-hydroxyacetic acid Natural products OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 abstract 3
- ASTGXUHKUFFOQX-UHFFFAOYSA-N 2-hydroxy-2-(3-methylphenyl)acetic acid Chemical compound CC1=CC=CC(C(O)C(O)=O)=C1 ASTGXUHKUFFOQX-UHFFFAOYSA-N 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 description 26
- 239000000047 product Substances 0.000 description 26
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 16
- 238000002844 melting Methods 0.000 description 16
- 230000008018 melting Effects 0.000 description 16
- 238000005481 NMR spectroscopy Methods 0.000 description 12
- 238000001953 recrystallisation Methods 0.000 description 12
- 238000004452 microanalysis Methods 0.000 description 10
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 10
- CSCPPACGZOOCGX-WFGJKAKNSA-N acetone d6 Chemical compound [2H]C([2H])([2H])C(=O)C([2H])([2H])[2H] CSCPPACGZOOCGX-WFGJKAKNSA-N 0.000 description 9
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- KLIDCXVFHGNTTM-UHFFFAOYSA-N 2,6-dimethoxyphenol Chemical compound COC1=CC=CC(OC)=C1O KLIDCXVFHGNTTM-UHFFFAOYSA-N 0.000 description 4
- HMNKTRSOROOSPP-UHFFFAOYSA-N 3-Ethylphenol Chemical compound CCC1=CC=CC(O)=C1 HMNKTRSOROOSPP-UHFFFAOYSA-N 0.000 description 4
- -1 alkali metal salt Chemical class 0.000 description 4
- 239000012736 aqueous medium Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000002609 medium Substances 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 4
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 4
- 239000012429 reaction media Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- CGQCWMIAEPEHNQ-UHFFFAOYSA-N Vanillylmandelic acid Chemical compound COC1=CC(C(O)C(O)=O)=CC=C1O CGQCWMIAEPEHNQ-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- MOEFFSWKSMRFRQ-UHFFFAOYSA-N 2-ethoxyphenol Chemical compound CCOC1=CC=CC=C1O MOEFFSWKSMRFRQ-UHFFFAOYSA-N 0.000 description 2
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 2
- SJTBRFHBXDZMPS-UHFFFAOYSA-N 3-fluorophenol Chemical compound OC1=CC=CC(F)=C1 SJTBRFHBXDZMPS-UHFFFAOYSA-N 0.000 description 2
- YHXHKYRQLYQUIH-UHFFFAOYSA-N 4-hydroxymandelic acid Chemical compound OC(=O)C(O)C1=CC=C(O)C=C1 YHXHKYRQLYQUIH-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-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
- 239000008346 aqueous phase Substances 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 1
- HFHFGHLXUCOHLN-UHFFFAOYSA-N 2-fluorophenol Chemical compound OC1=CC=CC=C1F HFHFGHLXUCOHLN-UHFFFAOYSA-N 0.000 description 1
- REJFNFUPLJDAOG-UHFFFAOYSA-N 2-hydroxy-2-(1-hydroxynaphthalen-2-yl)acetic acid Chemical compound C1=CC=CC2=C(O)C(C(C(O)=O)O)=CC=C21 REJFNFUPLJDAOG-UHFFFAOYSA-N 0.000 description 1
- ILEIUTCVWLYZOM-UHFFFAOYSA-N 2-hydroxy-5-methylbenzaldehyde Chemical compound CC1=CC=C(O)C(C=O)=C1 ILEIUTCVWLYZOM-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- RGHMISIYKIHAJW-UHFFFAOYSA-N 3,4-dihydroxymandelic acid Chemical compound OC(=O)C(O)C1=CC=C(O)C(O)=C1 RGHMISIYKIHAJW-UHFFFAOYSA-N 0.000 description 1
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 1
- 241000276498 Pollachius virens Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- UDDGYKGCIIVQHJ-UHFFFAOYSA-N benzene-1,4-diol;4-methoxyphenol Chemical compound OC1=CC=C(O)C=C1.COC1=CC=C(O)C=C1 UDDGYKGCIIVQHJ-UHFFFAOYSA-N 0.000 description 1
- 125000001743 benzylic group Chemical group 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- WZHCOOQXZCIUNC-UHFFFAOYSA-N cyclandelate Chemical compound C1C(C)(C)CC(C)CC1OC(=O)C(O)C1=CC=CC=C1 WZHCOOQXZCIUNC-UHFFFAOYSA-N 0.000 description 1
- 230000000911 decarboxylating effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229940031826 phenolate Drugs 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 125000001424 substituent group Chemical group 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
- HFFLGKNGCAIQMO-UHFFFAOYSA-N trichloroacetaldehyde Chemical compound ClC(Cl)(Cl)C=O HFFLGKNGCAIQMO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/367—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of functional groups containing oxygen only in singly bound form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7919171A FR2462415A1 (fr) | 1979-07-25 | 1979-07-25 | Procede de preparation d'acides hydroxyarylglycoliques racemiques et produits nouveaux en resultant |
| US06/243,965 US4339602A (en) | 1979-07-25 | 1980-07-24 | Process of preparation of racemic hydroxyarylglycolic acids and novel products resulting therefrom |
| JP50176080A JPS56500885A (ref) | 1979-07-25 | 1980-07-24 | |
| PCT/FR1980/000126 WO1981000254A1 (fr) | 1979-07-25 | 1980-07-24 | Procede de preparation d'acides hydroxyarylglycoliques racemiques et produits nouveaux en resultant |
| EP80401102A EP0023459B1 (fr) | 1979-07-25 | 1980-07-24 | Procédé de préparation d'acides hydroxyarylglycoliques racémiques |
| DE8080401102T DE3060708D1 (en) | 1979-07-25 | 1980-07-24 | Process for the preparation of racemic hydroxyarylglycolic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7919171A FR2462415A1 (fr) | 1979-07-25 | 1979-07-25 | Procede de preparation d'acides hydroxyarylglycoliques racemiques et produits nouveaux en resultant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2462415A1 true FR2462415A1 (fr) | 1981-02-13 |
| FR2462415B1 FR2462415B1 (ref) | 1983-10-14 |
Family
ID=9228280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7919171A Granted FR2462415A1 (fr) | 1979-07-25 | 1979-07-25 | Procede de preparation d'acides hydroxyarylglycoliques racemiques et produits nouveaux en resultant |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4339602A (ref) |
| EP (1) | EP0023459B1 (ref) |
| JP (1) | JPS56500885A (ref) |
| DE (1) | DE3060708D1 (ref) |
| FR (1) | FR2462415A1 (ref) |
| WO (1) | WO1981000254A1 (ref) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9121656D0 (en) * | 1991-10-11 | 1991-11-27 | Ici Plc | Chemical process |
| FR2687143B1 (fr) * | 1992-02-12 | 1995-06-23 | Hoechst France | Procede d'obtention de l'acide orthohydroxymandelique et de ses sels. |
| FR2779718B1 (fr) * | 1998-06-16 | 2000-12-29 | Rhodia Chimie Sa | Procede de preparation de composes p-hydroxymandeliques eventuellement substitues et derives |
| RU2192408C2 (ru) * | 2000-05-12 | 2002-11-10 | Государственное учреждение Всероссийский государственный научно-исследовательский институт контроля, стандартизации и сертификации ветеринарных препаратов | Способ получения замещенной арилоксиуксусной кислоты |
| DE10029413A1 (de) * | 2000-06-15 | 2001-12-20 | Bayer Ag | Verfahren zur Herstellung von 2,3,4,6-Tetramethylmandelsäure und 2,3,4,6-Tetramethylmandelsäureacetat |
| EP2055196A1 (en) * | 2007-10-29 | 2009-05-06 | Givaudan SA | Sweet flavour modulating carboxyalkyl-substituted phenyl derivatives |
| CN102190580A (zh) * | 2010-03-12 | 2011-09-21 | 重庆欣欣向荣精细化工有限公司 | 乙基香兰素合成中间体3-乙氧基-4-羟基扁桃酸的制备方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4165341A (en) * | 1977-02-04 | 1979-08-21 | Ube Industries, Ltd. | Process for preparing protocatechualdehyde and its derivatives |
| JPS543034A (en) * | 1977-06-10 | 1979-01-11 | Ube Ind Ltd | Separation of mandelic acid-type phenolic compound |
| CA1110272A (en) * | 1978-02-20 | 1981-10-06 | Normann Kaniss | 4-hydroxy phenylacetic acid |
| SE441524B (sv) * | 1978-05-19 | 1985-10-14 | Ici Ltd | Fast natrium- eller kalium-p-hydroximandelat-monohydrat och sett for dess framstellning |
| BE867287A (fr) * | 1978-05-19 | 1978-11-20 | Ici Ltd | Sel de metal alcalin de l'acide p-hydroxy-mandelique |
| JPS6038310B2 (ja) * | 1978-06-21 | 1985-08-31 | 株式会社日立製作所 | エレベ−タ位置検出装置 |
| FR2440350A1 (fr) * | 1978-11-03 | 1980-05-30 | Hoechst France | Procede de fabrication de l'acide parahydroxymandelique racemique |
| FR2427322A1 (fr) * | 1979-06-15 | 1979-12-28 | Hoechst France | Parahydroxymandelate de sodium racemique cristallise, son procede de preparation et son application a la preparation du paraformylphenolate de sodium cristallise |
-
1979
- 1979-07-25 FR FR7919171A patent/FR2462415A1/fr active Granted
-
1980
- 1980-07-24 DE DE8080401102T patent/DE3060708D1/de not_active Expired
- 1980-07-24 WO PCT/FR1980/000126 patent/WO1981000254A1/fr not_active Ceased
- 1980-07-24 JP JP50176080A patent/JPS56500885A/ja active Pending
- 1980-07-24 EP EP80401102A patent/EP0023459B1/fr not_active Expired
- 1980-07-24 US US06/243,965 patent/US4339602A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4339602A (en) | 1982-07-13 |
| WO1981000254A1 (fr) | 1981-02-05 |
| FR2462415B1 (ref) | 1983-10-14 |
| EP0023459A1 (fr) | 1981-02-04 |
| DE3060708D1 (en) | 1982-09-16 |
| JPS56500885A (ref) | 1981-07-02 |
| EP0023459B1 (fr) | 1982-07-28 |
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