CH655722A5 - Procede de preparation de derives de l'acide 2-thiophene acetique. - Google Patents
Procede de preparation de derives de l'acide 2-thiophene acetique. Download PDFInfo
- Publication number
- CH655722A5 CH655722A5 CH1967/83A CH196783A CH655722A5 CH 655722 A5 CH655722 A5 CH 655722A5 CH 1967/83 A CH1967/83 A CH 1967/83A CH 196783 A CH196783 A CH 196783A CH 655722 A5 CH655722 A5 CH 655722A5
- Authority
- CH
- Switzerland
- Prior art keywords
- formula
- product
- ethyl
- radical
- preparation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 34
- 238000002360 preparation method Methods 0.000 title claims description 12
- 150000005395 2-thiopheneacetic acid derivatives Chemical class 0.000 title 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 15
- -1 alkyl radical Chemical class 0.000 claims description 14
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 150000002148 esters Chemical class 0.000 claims description 7
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 7
- SMJRBWINMFUUDS-UHFFFAOYSA-N 2-thienylacetic acid Chemical class OC(=O)CC1=CC=CS1 SMJRBWINMFUUDS-UHFFFAOYSA-N 0.000 claims description 6
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical group C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- CQDGTJPVBWZJAZ-UHFFFAOYSA-N monoethyl carbonate Chemical compound CCOC(O)=O CQDGTJPVBWZJAZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 150000003254 radicals Chemical class 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical group [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 claims description 3
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 claims description 3
- 101100490437 Mus musculus Acvrl1 gene Proteins 0.000 claims description 2
- 125000005910 alkyl carbonate group Chemical group 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims 1
- 150000008051 alkyl sulfates Chemical group 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 99
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 40
- 239000000047 product Substances 0.000 description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 239000000203 mixture Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000010992 reflux Methods 0.000 description 11
- 239000012071 phase Substances 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 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 description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 7
- 229910052753 mercury Inorganic materials 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000005804 alkylation reaction Methods 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 229930192474 thiophene Natural products 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- KTKWUKAYWFMQSO-UHFFFAOYSA-N 2-thiophen-2-ylpropanoic acid Chemical compound OC(=O)C(C)C1=CC=CS1 KTKWUKAYWFMQSO-UHFFFAOYSA-N 0.000 description 1
- SIJUFSMIUVCHDT-UHFFFAOYSA-N 3-ethoxy-3-oxo-2-thiophen-2-ylpropanoic acid Chemical compound CCOC(=O)C(C(O)=O)C1=CC=CS1 SIJUFSMIUVCHDT-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229930186147 Cephalosporin Natural products 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 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
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910000102 alkali metal hydride Inorganic materials 0.000 description 1
- 150000008046 alkali metal hydrides Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229940124587 cephalosporin Drugs 0.000 description 1
- 150000001780 cephalosporins Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- DENRZWYUOJLTMF-UHFFFAOYSA-N diethyl sulfate Chemical compound CCOS(=O)(=O)OCC DENRZWYUOJLTMF-UHFFFAOYSA-N 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- QSUANHXENVRFDN-UHFFFAOYSA-N ethyl 2-thiophen-2-ylacetate Chemical compound CCOC(=O)CC1=CC=CS1 QSUANHXENVRFDN-UHFFFAOYSA-N 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 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
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 150000003577 thiophenes Chemical class 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/24—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8220271A FR2537137B1 (fr) | 1982-12-03 | 1982-12-03 | Procede de preparation de derives de l'acide 2-thiophene acetique et produits intermediaires necessaires pour leur preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH655722A5 true CH655722A5 (fr) | 1986-05-15 |
Family
ID=9279757
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1967/83A CH655722A5 (fr) | 1982-12-03 | 1983-04-12 | Procede de preparation de derives de l'acide 2-thiophene acetique. |
| CH4155/85A CH659817A5 (fr) | 1982-12-03 | 1983-04-12 | Derives de l'acide 2-thiophene acetique et leur preparation. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH4155/85A CH659817A5 (fr) | 1982-12-03 | 1983-04-12 | Derives de l'acide 2-thiophene acetique et leur preparation. |
Country Status (22)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE58909563D1 (de) * | 1988-04-22 | 1996-02-22 | Byk Gulden Lomberg Chem Fab | 3-Anilino-2-hydroxycarbonyl-4-thiophenessigsäuren |
| IT1276738B1 (it) * | 1995-06-16 | 1997-11-03 | Erregierre Spa | Processo per la preparazione di derivati dell'acido -metil-2- tiofeneacetico |
| DE102004008807A1 (de) | 2004-02-20 | 2005-09-08 | Bayer Cropscience Ag | Pyrazolopyrimidine |
| CN113896709B (zh) * | 2021-11-22 | 2023-02-28 | 南京一苇医药科技有限公司 | 一种苯并噻吩-3-乙酸的合成方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB683337A (en) * | 1949-10-01 | 1952-11-26 | Warner Hudnut Inc | Improvements in or relating to the preparation of antispasmodic compounds |
| IE33054B1 (en) * | 1968-04-16 | 1974-03-06 | Ici Ltd | Heterocyclic compounds |
| FR2260575A1 (en) * | 1974-02-11 | 1975-09-05 | Innothera Lab Sa | Cyclohexyl 3-thienyl acetic acid prodn - from methyl 3-thienylacetate through diethyl cyclohexyl 3-thienyl malonate as starting material for basic esters as drugs |
| GB2003570B (en) * | 1977-06-08 | 1982-01-20 | Imi Opella Ltd | Stop valve |
| FR2421897A1 (fr) * | 1978-04-04 | 1979-11-02 | Labaz | Nouveaux derives du thiophene, leur procede de preparation ainsi que les compositions therapeutiques les contenant |
-
1982
- 1982-12-03 FR FR8220271A patent/FR2537137B1/fr not_active Expired
-
1983
- 1983-03-28 DK DK139983A patent/DK160427C/da not_active IP Right Cessation
- 1983-03-30 SE SE8301785A patent/SE453992B/sv not_active IP Right Cessation
- 1983-03-31 FI FI831115A patent/FI83646C/fi not_active IP Right Cessation
- 1983-04-05 ES ES521230A patent/ES8401957A1/es not_active Expired
- 1983-04-11 PT PT76534A patent/PT76534B/pt not_active IP Right Cessation
- 1983-04-12 CH CH1967/83A patent/CH655722A5/fr not_active IP Right Cessation
- 1983-04-12 CH CH4155/85A patent/CH659817A5/fr not_active IP Right Cessation
- 1983-04-12 BE BE0/210536A patent/BE896439A/fr unknown
- 1983-04-14 HU HU831308A patent/HU192136B/hu not_active IP Right Cessation
- 1983-04-14 LU LU84748A patent/LU84748A1/fr unknown
- 1983-04-15 AU AU13574/83A patent/AU556803B2/en not_active Ceased
- 1983-04-18 ZA ZA832698A patent/ZA832698B/xx unknown
- 1983-04-18 DE DE19833314029 patent/DE3314029A1/de active Granted
- 1983-04-23 KR KR1019830001729A patent/KR900005681B1/ko not_active Expired
- 1983-05-04 IT IT48215/83A patent/IT1174757B/it active
- 1983-05-09 GB GB08312701A patent/GB2132607B/en not_active Expired
- 1983-05-10 IE IE1075/83A patent/IE55075B1/en not_active IP Right Cessation
- 1983-05-11 NL NL8301692A patent/NL8301692A/nl active Search and Examination
- 1983-05-20 JP JP58087835A patent/JPS59106482A/ja active Granted
- 1983-06-09 NZ NZ204509A patent/NZ204509A/en unknown
- 1983-07-28 CA CA000433421A patent/CA1201441A/fr not_active Expired
- 1983-08-08 AT AT2866/83A patent/AT392784B/de not_active IP Right Cessation
-
1987
- 1987-09-09 SE SE8703494A patent/SE457724B/sv not_active IP Right Cessation
-
1990
- 1990-06-06 DK DK138490A patent/DK164550C/da not_active IP Right Cessation
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0038735B1 (fr) | Procédé de préparation de produits ayant un groupement perfluoroalkyle en présence de zinc en milieu acide | |
| EP0030528B1 (fr) | Procédé pour la fixation de groupes alkyles, aralkyles ou cycloalkyles sur une chaîne carbonée portant un groupe fonctionnel | |
| EP0102283B1 (fr) | Nouveau procédé de préparation de dérivés de la quinuclidine substitués en position 3 | |
| CH655722A5 (fr) | Procede de preparation de derives de l'acide 2-thiophene acetique. | |
| EP0494016B1 (fr) | Procédé de transvinylation et son application | |
| EP0200840B1 (fr) | Procédé de préparation d'acides 6-alkoxy(inférieur)-1-naphtoiques, éventuellement halogénés en 5 et des esters correspondants | |
| EP1135372A1 (fr) | Procede de preparation de 4-hydroxyquinoleines et/ou formes tautomeres | |
| EP0694029B1 (fr) | Nouveau procede de preparation d'acide beta-alcoxy acrylique | |
| EP0708759A1 (fr) | Procede pour la preparation de pyrazines substituees | |
| FR2578253A1 (fr) | Nouveaux produits derives de l'acide thienyl 2-malonique, leur procede de preparation et leur application | |
| FR2655039A1 (fr) | Synthese des bromures de perfluoroalkyle. | |
| CH648821A5 (fr) | Procedes de preparation de derives cyclopropaniques tetra-substitues. | |
| EP0184572B1 (fr) | Procédé de préparation d'acides alpha-hydroxy-alcanoiques | |
| EP0433267A2 (fr) | Préparation de l'acide éicosatétraynoique | |
| WO1997033878A1 (fr) | Procede ameliore pour la preparation de derives de l'acide 3-(10-phenothiazyl)propanoique ou 3-(10-phenoxazyl)propanoique | |
| CA2463185A1 (fr) | Procede de preparation de derives de l'acide hexahydropyridazine-3-carboxylique | |
| EP0119899B1 (fr) | Nouveau procédé de préparation de dérivés de l'acide pen-4-énoique | |
| FR2599737A1 (fr) | Procede pour la fixation de groupes alkyles, alkenyles, cycloalkyles ou aralkyles sur une chaine carbonee portant un groupement fonctionnel | |
| CH621784A5 (enrdf_load_stackoverflow) | ||
| WO2005058918A1 (fr) | Nouveaux derives d’acides phenyl-boronique et leurs procedes de preparation | |
| LU84749A1 (fr) | Procede de preparation de derives del'acide 2-thiophene acetique | |
| EP0260472A2 (fr) | Procédé pour la préparation de cétones cycloaliphatiques | |
| EP0146439A1 (fr) | Procédé de préparation de dérivés acétyléniques, nouveaux dérivés obtenus et leur emploi | |
| CH639085A5 (en) | Process for the preparation of xanthone derivatives | |
| FR2827278A1 (fr) | Procede de synthese du carbonate de vinyle et de para-nitrophenyle et utilisation de ce compose pour la preparation de carbamates et de carbonates de vinyle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PFA | Name/firm changed |
Owner name: ROUSSEL-UCLAF TRANSFER- ROUSSEL UCLAF * ROUSSEL UC |
|
| PFA | Name/firm changed |
Owner name: HOECHST MARION ROUSSEL TRANSFER- AVENTIS PHARMA S. |
|
| PL | Patent ceased |