WO1998017620A1 - Derives d'acide 4-fluorosalicyclique et leur procede de production - Google Patents
Derives d'acide 4-fluorosalicyclique et leur procede de production Download PDFInfo
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- WO1998017620A1 WO1998017620A1 PCT/JP1997/003761 JP9703761W WO9817620A1 WO 1998017620 A1 WO1998017620 A1 WO 1998017620A1 JP 9703761 W JP9703761 W JP 9703761W WO 9817620 A1 WO9817620 A1 WO 9817620A1
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- acid
- general formula
- lower alkyl
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- TTZOLDXHOCCNMF-UHFFFAOYSA-N 4-fluoro-2-hydroxybenzoic acid Chemical class OC(=O)C1=CC=C(F)C=C1O TTZOLDXHOCCNMF-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 24
- 125000005843 halogen group Chemical group 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 22
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 20
- 125000002947 alkylene group Chemical group 0.000 claims description 10
- 125000001153 fluoro group Chemical group F* 0.000 claims description 9
- NJYBIFYEWYWYAN-UHFFFAOYSA-N 2,4-difluorobenzoic acid Chemical compound OC(=O)C1=CC=C(F)C=C1F NJYBIFYEWYWYAN-UHFFFAOYSA-N 0.000 claims description 5
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 5
- AYUJAOVKZDKCSR-UHFFFAOYSA-N 2-fluorooxybenzoic acid Chemical class OC(=O)C1=CC=CC=C1OF AYUJAOVKZDKCSR-UHFFFAOYSA-N 0.000 claims description 4
- SJTBRFHBXDZMPS-UHFFFAOYSA-N 3-fluorophenol Chemical class OC1=CC=CC(F)=C1 SJTBRFHBXDZMPS-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000543 intermediate Substances 0.000 abstract description 9
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 6
- 239000003905 agrochemical Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 2
- 229910052731 fluorine Inorganic materials 0.000 abstract description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- 238000006243 chemical reaction Methods 0.000 description 27
- 239000002904 solvent Substances 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000002955 isolation Methods 0.000 description 7
- 238000010992 reflux Methods 0.000 description 7
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 6
- 238000012790 confirmation Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005481 NMR spectroscopy Methods 0.000 description 5
- 150000007530 organic bases Chemical class 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 125000001424 substituent group Chemical group 0.000 description 5
- -1 5-chloro-4-1 Chemical compound 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- DHJRFSOFNFQKJE-UHFFFAOYSA-N 2,4-difluoro-6-hydroxybenzoic acid Chemical compound OC(=O)C1=C(O)C=C(F)C=C1F DHJRFSOFNFQKJE-UHFFFAOYSA-N 0.000 description 3
- OULDSJUFYGMOJG-UHFFFAOYSA-N 3,4,5-trifluoro-2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC(F)=C(F)C(F)=C1O OULDSJUFYGMOJG-UHFFFAOYSA-N 0.000 description 3
- GWOOBUWKTOCYKY-UHFFFAOYSA-N 3,4-difluoro-2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(F)C(F)=C1O GWOOBUWKTOCYKY-UHFFFAOYSA-N 0.000 description 3
- ZPXZUKPRQRBTQR-UHFFFAOYSA-N 3,5-dichloro-4-fluoro-2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC(Cl)=C(F)C(Cl)=C1O ZPXZUKPRQRBTQR-UHFFFAOYSA-N 0.000 description 3
- LQPQOESULBOBBB-UHFFFAOYSA-N 4,5-difluoro-2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC(F)=C(F)C=C1O LQPQOESULBOBBB-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 150000007529 inorganic bases Chemical class 0.000 description 3
- SFKRXQKJTIYUAG-UHFFFAOYSA-N 2,3,4,5-tetrafluorobenzoic acid Chemical compound OC(=O)C1=CC(F)=C(F)C(F)=C1F SFKRXQKJTIYUAG-UHFFFAOYSA-N 0.000 description 2
- WEPXLRANFJEOFZ-UHFFFAOYSA-N 2,3,4-trifluorobenzoic acid Chemical compound OC(=O)C1=CC=C(F)C(F)=C1F WEPXLRANFJEOFZ-UHFFFAOYSA-N 0.000 description 2
- AKAMNXFLKYKFOJ-UHFFFAOYSA-N 2,4,5-trifluorobenzoic acid Chemical compound OC(=O)C1=CC(F)=C(F)C=C1F AKAMNXFLKYKFOJ-UHFFFAOYSA-N 0.000 description 2
- SHLNHUHKYANNLC-UHFFFAOYSA-N 3,5-dichloro-2,4-difluorobenzoic acid Chemical compound OC(=O)C1=CC(Cl)=C(F)C(Cl)=C1F SHLNHUHKYANNLC-UHFFFAOYSA-N 0.000 description 2
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 2
- VXBQLSVFGIFOPQ-UHFFFAOYSA-N 5-chloro-2,4-difluorobenzoic acid Chemical compound OC(=O)C1=CC(Cl)=C(F)C=C1F VXBQLSVFGIFOPQ-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-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
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006114 decarboxylation reaction Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- XTAZYLNFDRKIHJ-UHFFFAOYSA-N n,n-dioctyloctan-1-amine Chemical compound CCCCCCCCN(CCCCCCCC)CCCCCCCC XTAZYLNFDRKIHJ-UHFFFAOYSA-N 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 description 2
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 2
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 2
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- SJZATRRXUILGHH-UHFFFAOYSA-N 2,4,6-trifluorobenzoic acid Chemical compound OC(=O)C1=C(F)C=C(F)C=C1F SJZATRRXUILGHH-UHFFFAOYSA-N 0.000 description 1
- DDRJDFULMKUQRV-UHFFFAOYSA-N 5-chloro-4-fluoro-2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC(Cl)=C(F)C=C1O DDRJDFULMKUQRV-UHFFFAOYSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229940111121 antirheumatic drug quinolines Drugs 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229940086066 potassium hydrogencarbonate Drugs 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
- 238000000746 purification Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- VTGOHKSTWXHQJK-UHFFFAOYSA-N pyrimidin-2-ol Chemical compound OC1=NC=CC=N1 VTGOHKSTWXHQJK-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000005270 trialkylamine group Chemical group 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C65/00—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C65/01—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups
- C07C65/03—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups monocyclic and having all hydroxy or O-metal groups bound to the ring
- C07C65/05—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups monocyclic and having all hydroxy or O-metal groups bound to the ring o-Hydroxy carboxylic acids
-
- 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
Definitions
- the present invention relates to a novel fluorosalicylic acid which can be easily converted to 3-fluorophenol, which is extremely useful as an intermediate for liquid crystals, recording materials and medical and agricultural chemicals.
- the present invention relates to monofluorosalicylic acids and a method for producing the same.
- the 4-fluorosalicylic acids of the present invention are novel compounds which have not been known so far and have not been described in any literature, and have been disclosed in liquid crystals (JP-A-7-291899, JP-A-7-19989). -Refer to Japanese Patent Application Laid-Open No. 10-8477), recording materials (see Japanese Patent Application Laid-Open No.
- An object of the present invention is to provide novel 4-fluorosalicylic acids which can be easily derived into useful 3-fluorophenols as described above, and a method for producing the same.
- XI, X 2 , and X 3 each independently represent a hydrogen atom or a halogen atom. [However, Xi, X 2 , and X 3 are not all hydrogen atoms at the same time or all fluorine atoms at the same time.] )
- the present invention also provides a compound of the general formula (2)
- A is a group —CH 2 — or a group —NR ′ — (wherein R ′ is a lower alkyl group Show. ), R is a lower alkyl group, W is a lower alkyl group, X is a hydrogen atom or a lower alkyl group when A is —CH 2 —, and a lower alkyl group when A is —NR, — And W and X may combine with each other to form a lower alkylene group, and may form a 5- to 7-membered ring together with —N—C—A—. ]
- Q represents a group —SO— or a group —SO 2 —; Y and Z each independently represent a lower alkyl group; Y and Z are bonded to each other to form a lower alkylene group; — Or the group — may be a 4- to 6-membered ring together with S ⁇ 2 —.
- Xi, X 2 , and X 3 each independently represent a hydrogen atom or a halogen atom. [However, Xi, X 2 , and X 3 are not all hydrogen atoms at the same time or all fluorine atoms at the same time.] )
- X i, X 2 , and X 3 each independently represent a hydrogen atom or a halogen atom. [However, XI, X 2 , and X 3 are not all hydrogen atoms at the same time or all fluorine atoms at the same time. ].
- the compound of the present invention is a 4-fluorosalicylic acid represented by the general formula (1).
- XI, chi-square, location represented by X 3 are each independently a hydrogen atom or a halogen atom (however, XI, chi-square, is X 3 are all simultaneously hydrogen atom, or all at the same time fluorine atoms
- the halogen atom means a fluorine atom, a chlorine atom, and a bromine atom.
- Specific examples of the compound represented by the general formula (1) include 3,4-difluorosalicylic acid, 5-chloro-4-1,4-fluorosalicylic acid, 3,5-dichloro-4-fluorosalicylic acid, 4,6-difluorosalicylic acid, 3,4,5-trifluorosalicylic acid, 4,5-difluoro salicylic acid and the like can be mentioned.
- the compound of the present invention can be produced, for example, by the production method of the present invention as described below. Can be.
- A represents a group —CH 2 — or a group NR ′ — (wherein, R represents a lower alkyl group.), R represents a lower alkyl group, W represents a lower alkyl group, X represents a hydrogen atom or a lower alkyl group when A is a group CH 2 —; a lower alkyl group when A is a group NR ′ —; W and X are bonded to each other to form a lower alkylene group; , —N— C— A— may form a 5- to 7-membered ring.
- Q represents a group —SO— or a group —SO 2 _
- Y and Z each independently represent a lower alkyl group, Y and Z bond to each other to form a lower alkylene group, and the group —SO— Or a 4- to 6-membered ring together with the group S ⁇ 2 —.
- XI, X 2 and X 3 each independently represent a hydrogen atom or a halogen atom [provided that However, X i, X 2 and X 3 are not all hydrogen atoms at the same time or all are fluorine atoms at the same time. ].
- the compound of the present invention can be isolated by a common post-treatment such as acid precipitation.
- the compound used as a solvent in the production method of the present invention is a compound represented by the general formula (2) or a compound represented by the general formula (3).
- the lower alkyl groups represented by the substituents R, R ', W and X each independently have 1 to 4 carbon atoms.
- Alkyl groups specifically, for example, a methyl group, an ethyl group, an ⁇ -propyl group, an isopropyl group, an n-butyl group, an isobutyl group, etc., and the substituents W and X are bonded to each other.
- the lower alkylene group to be used is an alkylene group having 2 to 4 carbon atoms, specifically, for example, an ethylene group, a trimethylene group, a tetramethylene group and the like.
- the lower alkyl groups represented by the substituents Y and Z each independently represent an alkyl group having 1 to 4 carbon atoms, specifically, for example, a methyl group, an ethyl group, an n-propyl group.
- the lower alkylene group formed by combining the substituents Y and Z with each other is an alkylene group having 3 to 5 carbon atoms, specifically, For example, there are a trimethylene group, a tetramethylene group, a pentamethylene group and the like.
- preferred compounds as the solvent in the production method of the present invention are 1,3-dimethyl-2-imidazolidinone, 1- Methyl-1-pyrrolidone, 1,3-dimethyl-3,4,5,6-tetrahydro-12 (1H) -pyrimidinone, dimethylsulfoxy N, N-Jetyl acetoamide, 1,1,3,3, -tetramethylurea, tetramethylene sulfone and dimethyl sulfone.
- the amount of the solvent to be used may be any amount as long as it can be stirred during the reaction, but it is usually 0.1 to 6 with respect to 1 mol of 2,4-difluorobenzoic acid represented by the general formula (4). ⁇ , preferably in the range of 0.3 to 3 ⁇ .
- Examples of the alkali metal hydroxide used in the production method of the present invention include lithium hydroxide, sodium hydroxide, potassium hydroxide and the like. Among them, sodium hydroxide and lithium hydroxide are preferable.
- the amount of the alkali metal hydroxide to be used may be in the range of 2 to 6 mol, preferably 3 to 5 mol, per 1 mol of 2,4-difluorobenzoic acid.
- the reaction temperature in the production method of the present invention can be arbitrarily selected within a temperature range not higher than the boiling point of the solvent, but is preferably from 80 to 200 t, more preferably from 100 to 160 ° C.
- the reaction time is usually about 2 to 12 hours, and the pressure during the reaction may be any of normal pressure, pressurization and decompression, but usually normal pressure.
- the 4-fluorosalicylic acids (compounds of the present invention), which are the object of the production method of the present invention, can be obtained by a general isolation method from the reaction solution after the reaction, for example, after acidifying the reaction solution after the reaction. , By filtration, or by extracting the solvent from the reaction solution after completion of the reaction, and then concentrating the extraction solvent, and at the completion of the reaction, the alkali metal of the target product produced After the salt is separated from the solvent by filtration, the salt can be removed by acid precipitation.
- the obtained 4-fluorosalicylic acids of the compound of the present invention can be used without purification, or can be purified by recrystallization from an alcohol-water mixed solvent or the like. (Production of 3_fluorophenols)
- an organic base or an inorganic base can be used as a base in this reaction.
- the organic base include tertiary amines (nitrogen-containing organic bases without [N] -H, and tertiary in a broad sense).
- pyridines eg, pyridine, 4- (N, N-dimethylamino) pyridine (DMAP), etc.
- quinolines eg, quinoline
- trialkylamines examples include triethylamine, trioctylamine), N, N-dialkylanilines (eg, N, N-dimethylaniline) and the like.
- the amount of the organic base to be used is 0.01 to 50 mol, preferably 0.1 to 20 mol, based on 1 mol of 4-fluorosalicylic acid.
- hydroxides or carbonates of alkali metals and alkaline earth metals can be used, and specifically, hydroxides of alkali metals and alkaline earth metals (for example, sodium hydroxide, water Examples thereof include potassium oxide, calcium hydroxide, and the like, and alkali metal and alkaline earth metal carbonates (eg, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, calcium carbonate, barium carbonate, and the like). it can.
- the amount of the inorganic base used is 0.01 to 5 mol, preferably 0.1 to 2 mol, based on 1 mol of 4-fluorosalicylic acid.
- use of an organic base is preferable, and among them, use of quinoline, trioctylamine or 4- (N, N-dimethylamino) pyridine gives preferable results.
- this reaction may proceed without solvent, but a solvent may be used if desired. If a solvent is used, it is not possible to cause a side reaction with 4-fluorosalicylic acids and the like.
- Active for example, aprotic, polar solvents, specifically 1-methyl-2-pyrrolidone (NMP), 1,3-dimethyl-2-imidazolidinone (DMI), N, N-dimethylacetamide (D MA C), tetramethylsulfone and the like can be used as the solvent.
- aromatic hydrocarbons and aromatic octogenated hydrocarbons specifically, toluene, xylene, cyclobenzene, dichlorobenzene, trichlorobenzene, and the like can be exemplified as the solvent that can be used.
- the above-mentioned organic base may be used as a combination of the base and the solvent in this reaction.
- the amount of the solvent used in this reaction is, for example, in the range of 0.3 to 3 ⁇ , preferably 0.5 to 2 ⁇ , per mole of 4-fluorosalicylic acid.
- the reaction temperature is, for example, in the range of 150 to 230 ° C., and the reaction time is usually 1 to 20 hours, preferably 2 to 15 hours. This reaction may be performed under any of normal pressure, increased pressure, and reduced pressure.
- 3-fluorophenols produced in this reaction can be used, for example, after washing the reaction solution with acid, and then concentrating or rectifying the separated organic layer. After that, the organic layer obtained by solvent extraction is concentrated or rectified Can be taken out.
- I R (KB r tablet, cm_i): 3083, 1 669, 1605, 150 6, 1448, 1282, 1249, 1208, 1158, 897, 861, 698, 656
- novel 4-fluorosalicylic acids are provided.
- the 41-fluorosalicylic acids are extremely suitable as intermediates for producing 3-fluorophenols, which are extremely useful as intermediates for liquid crystals, recording materials, and medical and agricultural chemicals.
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- 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)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/091,249 US6166246A (en) | 1996-10-18 | 1997-10-17 | 4-fluorosalicyclic acid derivative and process for production thereof |
DE69718308T DE69718308T2 (de) | 1996-10-18 | 1997-10-17 | 4-fluorsalicylsäurederivate und verfahren zu ihrer herstellung |
EP97944163A EP0894784B1 (en) | 1996-10-18 | 1997-10-17 | 4-fluorosalicylic acid derivatives and process for producing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/297312 | 1996-10-18 | ||
JP29731296A JP3814742B2 (ja) | 1996-10-18 | 1996-10-18 | 4−フルオロサリチル酸類 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998017620A1 true WO1998017620A1 (fr) | 1998-04-30 |
Family
ID=17844889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/003761 WO1998017620A1 (fr) | 1996-10-18 | 1997-10-17 | Derives d'acide 4-fluorosalicyclique et leur procede de production |
Country Status (6)
Country | Link |
---|---|
US (1) | US6166246A (ja) |
EP (1) | EP0894784B1 (ja) |
JP (1) | JP3814742B2 (ja) |
CN (1) | CN1083827C (ja) |
DE (1) | DE69718308T2 (ja) |
WO (1) | WO1998017620A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008514703A (ja) * | 2004-09-29 | 2008-05-08 | ポートラ ファーマシューティカルズ, インコーポレイテッド | 置換2h−1,3−ベンゾオキサジン−4(3h)−オン |
CN102320960A (zh) * | 2011-08-02 | 2012-01-18 | 安徽东健化工科技有限公司 | 一种6-氟水杨酸的制备方法 |
CN104130773B (zh) * | 2014-08-25 | 2016-06-29 | 桂林理工大学 | 荧光材料Zn2(hfoac)4(4,4-pybi)2及合成方法 |
CN105244157A (zh) * | 2015-10-17 | 2016-01-13 | 李德生 | 电能导磁环 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07501330A (ja) * | 1991-11-18 | 1995-02-09 | ファルマシア・アクチエボラーグ | 新規な置換されたサリチル酸 |
JPH0977716A (ja) * | 1995-07-07 | 1997-03-25 | Ihara Chem Ind Co Ltd | 4−フルオロサリチル酸類の製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3337616A (en) * | 1964-12-18 | 1967-08-22 | Dow Chemical Co | Preparation of salicylic acids |
US3689536A (en) * | 1968-05-03 | 1972-09-05 | Theodore E Majewski | Salicylic acid and halo-substituted salicylic acid salts of oxydianiline |
FR2224440B1 (ja) * | 1973-04-06 | 1976-06-11 | Rhone Progil | |
US4232172A (en) * | 1977-03-05 | 1980-11-04 | Celamerck Gmbh & Co. Kg | Process for the preparation of 3,6-dichloro-salicyclic |
US4131618A (en) * | 1977-12-29 | 1978-12-26 | Merck & Co., Inc. | Preparation of salicylic acid and derivatives |
JPS60204742A (ja) * | 1984-03-30 | 1985-10-16 | Nippon Shokubai Kagaku Kogyo Co Ltd | テトラフルオロ−4−ヒドロキシ安息香酸の製法 |
FR2589149B1 (fr) * | 1985-10-29 | 1987-12-11 | Rhone Poulenc Spec Chim | Procede de separation et de purification de l'acide salicylique par precipitation a partir d'une solution aqueuse de son sel sodique |
CN1060467A (zh) * | 1990-09-25 | 1992-04-22 | 武田药品工业株式会社 | 1,3-苯并嗪衍生物、其生产方法和用途 |
US5266674A (en) * | 1990-12-24 | 1993-11-30 | Phillips Petroleum Company | Process for preparing arylene sulfide copolymers |
CN1042631C (zh) * | 1993-01-02 | 1999-03-24 | 法玛西亚普强Ab公司 | 取代的水杨酸类化合物、其药用组合物和应用 |
JP3891501B2 (ja) * | 1996-03-07 | 2007-03-14 | イハラケミカル工業株式会社 | 3−フルオロフェノールの製造方法 |
-
1996
- 1996-10-18 JP JP29731296A patent/JP3814742B2/ja not_active Expired - Fee Related
-
1997
- 1997-10-17 WO PCT/JP1997/003761 patent/WO1998017620A1/ja active IP Right Grant
- 1997-10-17 EP EP97944163A patent/EP0894784B1/en not_active Expired - Lifetime
- 1997-10-17 DE DE69718308T patent/DE69718308T2/de not_active Expired - Lifetime
- 1997-10-17 CN CN97191458A patent/CN1083827C/zh not_active Expired - Fee Related
- 1997-10-17 US US09/091,249 patent/US6166246A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07501330A (ja) * | 1991-11-18 | 1995-02-09 | ファルマシア・アクチエボラーグ | 新規な置換されたサリチル酸 |
JPH0977716A (ja) * | 1995-07-07 | 1997-03-25 | Ihara Chem Ind Co Ltd | 4−フルオロサリチル酸類の製造方法 |
Non-Patent Citations (2)
Title |
---|
CHEMICAL ABSTRACTS, Vol. 63, No. 12, 6 December 1965, (Columbus, Ohio, USA), Abstract No. 16255f, H. DUDA et al., "Halosalicylhydroxamic Acids. I. Dihalosalicylic Acids"; & BULL. ACAD. POLON. SCI., SER. SCI. CHEM., 1965, 13(5), 341-347 (Eng). * |
See also references of EP0894784A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP3814742B2 (ja) | 2006-08-30 |
EP0894784B1 (en) | 2003-01-08 |
US6166246A (en) | 2000-12-26 |
DE69718308T2 (de) | 2003-10-02 |
DE69718308D1 (de) | 2003-02-13 |
CN1083827C (zh) | 2002-05-01 |
CN1206399A (zh) | 1999-01-27 |
JPH10120623A (ja) | 1998-05-12 |
EP0894784A1 (en) | 1999-02-03 |
EP0894784A4 (en) | 1999-12-01 |
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