WO2004110977A1 - 光学活性1−アルキル置換−2,2,2−トリフルオロエチルアミンの製造方法 - Google Patents
光学活性1−アルキル置換−2,2,2−トリフルオロエチルアミンの製造方法 Download PDFInfo
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- WO2004110977A1 WO2004110977A1 PCT/JP2004/007955 JP2004007955W WO2004110977A1 WO 2004110977 A1 WO2004110977 A1 WO 2004110977A1 JP 2004007955 W JP2004007955 W JP 2004007955W WO 2004110977 A1 WO2004110977 A1 WO 2004110977A1
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- WIPO (PCT)
- Prior art keywords
- optically active
- formula
- acid
- secondary amine
- represented
- Prior art date
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- KIPSRYDSZQRPEA-UHFFFAOYSA-N 2,2,2-trifluoroethanamine Chemical class NCC(F)(F)F KIPSRYDSZQRPEA-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 23
- 150000003839 salts Chemical class 0.000 claims abstract description 52
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- 239000003054 catalyst Substances 0.000 claims abstract description 30
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- 239000002184 metal Substances 0.000 claims abstract description 18
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 239000012298 atmosphere Substances 0.000 claims abstract description 9
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- 238000000746 purification Methods 0.000 claims description 31
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- RQEUFEKYXDPUSK-UHFFFAOYSA-N 1-phenylethylamine Chemical compound CC(N)C1=CC=CC=C1 RQEUFEKYXDPUSK-UHFFFAOYSA-N 0.000 claims description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical class C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 claims description 6
- 239000003377 acid catalyst Substances 0.000 claims description 6
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- 230000003301 hydrolyzing effect Effects 0.000 claims description 3
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- 150000001721 carbon Chemical group 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
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- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 abstract 2
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 abstract 1
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
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- ZDYVRSLAEXCVBX-UHFFFAOYSA-N pyridinium p-toluenesulfonate Chemical compound C1=CC=[NH+]C=C1.CC1=CC=C(S([O-])(=O)=O)C=C1 ZDYVRSLAEXCVBX-UHFFFAOYSA-N 0.000 description 5
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- YPGCWEMNNLXISK-UHFFFAOYSA-N hydratropic acid Chemical compound OC(=O)C(C)C1=CC=CC=C1 YPGCWEMNNLXISK-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229940071870 hydroiodic acid Drugs 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- TWBYWOBDOCUKOW-UHFFFAOYSA-N isonicotinic acid Chemical compound OC(=O)C1=CC=NC=C1 TWBYWOBDOCUKOW-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229960000448 lactic acid Drugs 0.000 description 1
- 229940040102 levulinic acid Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229940099690 malic acid Drugs 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- IJFXRHURBJZNAO-UHFFFAOYSA-N meta--hydroxybenzoic acid Natural products OC(=O)C1=CC=CC(O)=C1 IJFXRHURBJZNAO-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- DNMCNCTUMLBHKO-UHFFFAOYSA-N methyl(trifluoromethyl)silane Chemical compound C[SiH2]C(F)(F)F DNMCNCTUMLBHKO-UHFFFAOYSA-N 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N n-hexanoic acid Natural products CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- UXVUXLQXLAHKAB-UHFFFAOYSA-N oxoplatinum;rhodium Chemical compound [Rh].[Pt]=O UXVUXLQXLAHKAB-UHFFFAOYSA-N 0.000 description 1
- NXJCBFBQEVOTOW-UHFFFAOYSA-L palladium(2+);dihydroxide Chemical compound O[Pd]O NXJCBFBQEVOTOW-UHFFFAOYSA-L 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical compound OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229940095574 propionic acid Drugs 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229930000044 secondary metabolite Natural products 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010898 silica gel chromatography Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 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
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical class Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-M toluene-4-sulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-M 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-N trans-cinnamic acid Chemical compound OC(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 1
- 229960004319 trichloroacetic acid Drugs 0.000 description 1
- 238000006692 trifluoromethylation reaction Methods 0.000 description 1
- MWKJTNBSKNUMFN-UHFFFAOYSA-N trifluoromethyltrimethylsilane Chemical compound C[Si](C)(C)C(F)(F)F MWKJTNBSKNUMFN-UHFFFAOYSA-N 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/62—Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/44—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers
- C07C209/52—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of imines or imino-ethers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/01—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms
- C07C211/02—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C211/15—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C249/00—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C249/02—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of compounds containing imino groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/07—Optical isomers
Definitions
- the present invention relates to a method for producing an optically active monoalkyl-substituted 1,2,2,2-trifluoroethylamine, which is an important intermediate of medicines and agricultural chemicals.
- optically active 1-alkyl-substituted 2,2,2-trifluoroethylamine which is an object of the present invention, is an important intermediate of pharmaceuticals and agricultural chemicals.
- TMSCF methyl (trifluoromethyl) silane
- Non-Patent Document 2 A method of hydrolysis (Non-Patent Document 2) has been reported.
- Patent Document 1 Japanese Patent No. 3005669
- Patent Document 2 US Pat. No. 6,204,269
- Patent Document 3 European Patent Application No. 0323637
- Non-Patent Document 1 J. Org. Chem., (USA), 1997, Vol. 62, No. 10, p. 3030-3030
- Non-Patent Document 2 Angewandte Chemie, International Edition, (Germany), 2001, Vol. 40, No. 3, p. 589-590
- optically active imine which is the object of the present invention, is converted to optically active secondary amine by asymmetric reduction under a hydrogen atmosphere using a Group VIII (Group 8-10) metal catalyst.
- a method for producing an optically active 1-alkyl-substituted 2,2,2-trifluoroethylamine or a salt thereof by hydrogenolyzing a secondary amine or a salt thereof has been reported.
- An object of the present invention is to provide an industrial method for producing optically active monoalkyl-substituted 1,2,2,2_trifluoroethylamine, which is an important intermediate of pharmaceuticals and agricultural chemicals. is there.
- R represents a lower alkyl group having 1 to 6 carbon atoms
- Ph represents a phenyl group
- a wavy line represents an E-form or a Z-form
- * represents an asymmetric carbon.
- R represents a lower alkyl group having 1 to 6 carbon atoms
- Ph represents a phenyl group
- * represents an asymmetric carbon
- R represents a lower alkyl group having 1 to 6 carbon atoms, and * represents an asymmetric carbon atom.
- the optically active 1_alkyl-substituted 1,2,2,2-trifluoroethylamine or A method for producing the salt is provided.
- optically active imine represented by the formula [1]
- R represents a lower alkyl group having 1 to 6 carbon atoms
- Ph represents a phenyl group and * represents an asymmetric carbon.
- An optically active imine obtained by dehydrating and condensing optically active 1-phenylethylamine in the presence of an acid catalyst. There may be.
- (S) _N_ (1-phenyl-2,2,2_trifluoroethylidene) _1-phenylethylamine is hydrogenated using a Pd catalyst in a hydrogen atmosphere.
- a method for conversion to the corresponding optically active secondary amine by asymmetric reduction under the following conditions has been reported. Ci. Org. Chem., (USA), 1977, Vol. 42, No. 14, p. — 2439).
- the present inventors have found that when optically active N- (1-alkyl-substituted 1,2,2,2-trifluoroethylidene) -1-phenylphenylamine is used as a reaction substrate, the reaction is not possible. It was found that the diastereoselectivity in the simultaneous reduction was greatly affected by the temperature conditions, and the diastereoselectivity was reversed by the reaction temperature employed.
- R—R or S—S the absolute configuration shown before the diphen is the absolute configuration on the 1-alkyl-substituted 1,2,2,2-trifluoroethyl group side, which is advantageous for recrystallization purification of the salt described below
- the absolute configuration shown after ⁇ and ⁇ indicates the absolute configuration of the 1-phenylethyl group derived from the chiral auxiliary group.
- the optically active secondary amine has a high diastereoselectivity. (See Table 1).
- the obtained optically active secondary amine or salt thereof is hydrolyzed to give the desired optically active 1-alkyl-substituted 1,2,2,2-trifluoroethylamine or a salt thereof. It has also been found that high chemical purity can be derived at a high yield without lowering the purity.
- PdZC A palladium-carbon powder carrying 5 g of Pd (in terms of metal atoms) per 100 g of activated carbon, mixed with the same weight of water, and conditioned.
- run5 2 wt.% of 5% PdZC was further added, and the reaction was continued for 16 hours.
- run8 3 wt.% of 5% PdZC was further added, and the reaction was continued for 21 hours.
- optically active secondary amine obtained by asymmetric reduction can be purified to a high diastereomer excess (d.e.) by derivatizing the salt into its salt and purifying it by recrystallization.
- optically active 1-alkyl-substituted 2,2,2-trifluoroethylamine can be obtained with high optical purity.
- the present inventors have found a novel method for producing optically active 1-alkyl-substituted 1,2,2,2-trifluoroethylamine as described above, and have completed the present invention.
- This production method has high selectivity in each reaction step, makes separation difficult, and produces almost no impurities as a by-product. Therefore, the optically active monoalkyl-substituted 1,2,2 is an important intermediate for pharmaceuticals and agricultural chemicals.
- 2_ trifluorethylamine is an extremely effective method for industrial production.
- the method for producing the optically active 1-alkyl-substituted 1,2,2,2-trifluoroethylamine of the present invention will be described in detail.
- the production process of the present invention can be composed of four steps of (1) dehydration condensation, (2) asymmetric reduction, (3) salt purification, and (4) hydrogenolysis (see scheme 1).
- Patent Literature 1 and Non-Patent Literature 1 described above show examples of performing dehydration condensation without a catalyst.
- an example is shown in which a similar dehydration condensation is carried out and a reaction is performed using paratoluenesulfonic acid (PTS) as an acid catalyst.
- PTS paratoluenesulfonic acid
- R is methyl, ethyl, 1-propyl, 2_propyl, cyclopropyl, 1-butyl, 2-butyl, 2-methyl-1_pro. Pill, tert-butyl, cyclobutyl, 1_pentyl, 2_pentyl, 3_pentyl, neopentyl, tert-amyl, cyclopentyl, 1-hexyl, 2-hexyl, 3-hexyl, cyclohexyl, etc. No.
- New compounds are also included in the trifluoromethyl alkyl ketones shown here, but refer to J. Org. Chem., (USA), 1987, Vol. 52, No. 22, p. Then, by using an organometallic reagent having a different alkyl group, the same production can be performed.
- the amount of the trifluoromethyl alkyl ketone represented by the formula [4] to be used is 1 mol or more based on 1 mol of the optically active 1-phenylethylamine represented by the formula [5]. Normally, 11 to 10 mol is preferred, and especially 115 to 5 mol is more preferred.
- the optical activity of 1-phenylethylamine shown by the formula [5] is generally not less than 97% ee if the optical purity of 95% enantiomeric excess (ee) or more is used. Preferably, it is more preferably 99% ee or more.
- Examples of the acid catalyst include formic acid, acetic acid, propionic acid, trifluoroacetic acid, methanesulfonic acid, trifluoromethanesulfonic acid, benzenesulfonic acid, paratoluenesulfonic acid (PTS), and pyridinium paratoluenesulfonate (PPTS). ), Organic acids such as 10-camphorsulfonic acid, ion exchange resins such as Amberlyst H-15 and Dowex 50W-X8, inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, zinc chloride, and tetrachloride titanium Acids.
- Organic acids such as 10-camphorsulfonic acid, ion exchange resins such as Amberlyst H-15 and Dowex 50W-X8, inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, zinc chloride, and tetrachloride titanium Acids.
- pyridinum paratoluenesulfonate is more preferred.
- the reaction rate is slow without the catalyst used in Patent Document 1 and Non-patent Document 1 mentioned above. J. Org. Chem., (USA), 1977, Vol. 42, No. 14, p.
- PTS noratonorensenoleonic acid
- the amount of the acid catalyst to be used is usually 0.0001 0.5 as long as a catalyst amount is used per 1 mol of optically active 1-phenylethylamine represented by the formula [5]. Especially preferred by moles 0. 01—0.25 Monoreca S, more preferred than S.
- this reaction is a dehydration condensation of trifluoromethyl alkyl ketone and optically active 1-phenylethylamine
- a reaction solvent that is not miscible with water and has a specific gravity lower than that of water and azeotropes with water to remove water by-produced using a Dean 'Stark tube under reflux conditions, or use synthetic zeolite (trade name). : Molecular sieves), using a drying agent such as phosphoric anhydride, anhydrous magnesium sulfate, and anhydrous sodium sulfate to remove by-product water.
- a sufficient reaction rate can be obtained without intentionally performing the above-mentioned water removal operation.
- reaction solvent aromatic hydrocarbons such as benzene, toluene, ethylbenzene, xylene, and mesitylene are preferable, and toluene is more preferable. These reaction solvents can be used alone or in combination.
- the amount of the reaction solvent to be used is usually 0. OIL (liter) or more per 1 mol of the optically active 1-phenylethylamine represented by the formula [5].
- OIL liter
- 05-20L is preferred, especially 0.1-10L is more preferred.
- the temperature condition is 0 to 200 ° C, usually 3 to 175 ° C, particularly 5 to 150 ° C.
- ° C is more preferred.
- a pressure-resistant reaction vessel can be used.
- reaction time varies depending on the reaction substrate and the reaction conditions, which is 0.1 to 72 hours
- the progress of the reaction is tracked by analytical means such as gas chromatography, liquid chromatography, and NMR, and the raw materials are used. It is preferable that the time when almost disappeared is the end point.
- the post-treatment is not particularly limited, but a crude product can be obtained by performing ordinary post-treatment operations after the completion of the reaction.
- unreacted optically active 1-phenylethylamine is
- reaction-terminated liquid or the organic layer containing the desired optically active imine represented by the formula [1] can be selectively removed by washing with an aqueous solution of ammonium chloride.
- the desired optically active imine represented by the formula [1] can be obtained with high purity and high purity. it can.
- the reaction-terminated liquid can be directly used for the asymmetric reduction in the second step without performing any post-treatment operation.
- the geometric isomerism at the double bond of the desired optically active imine represented by the formula [1] includes an E-isomer or a Z-isomer, but the formation ratio varies depending on the reaction substrate and reaction conditions.
- the absolute configuration of the newly asymmetrically induced asymmetric carbon of the optically active secondary amine represented by the target formula [2] may be an R-form or an S-form, but depending on the reaction substrate and reaction conditions. Its formation ratio is different.
- As the combination of the absolute configurations of two asymmetric carbons there are an RR form, an SR form, an RS form or an SS form.
- Group VIII (Group 810) metal catalysts include platinum oxide, platinum / activated carbon, platinum catalysts such as platinum black, nickel catalysts such as reduced nickel, Raney nickel, Raney nickel with platinum, and cobalt catalysts such as Raney cobalt. , Ruthenium oxide, ruthenium catalysts such as ruthenium / activated carbon, rhodium / activated carbon, rhodium / alumina, rhodium catalysts such as rhodium monooxide platinum, iridium catalysts such as iridium black, palladium / activated carbon, palladium hydroxide, palladium Black, noradium / barium sulfate, palladium / strontium carbonate, palladium / calcium carbonate, palladium / calcium carbonate-lead diacetate, palladium / barium sulfate—quinoline, palladium / alumina, palladium sponge, palladium chloride, palladium acetate
- platinum catalysts nickel catalysts, ruthenium catalysts, rhodium catalysts and palladium catalysts are preferred, and platinum Z activated carbon, Raney nickel, ruthenium / activated carbon, rhodium / activated carbon and palladium Z activated carbon are more preferred.
- These Group VIII metal catalysts can be used alone or in combination .
- the supported amount is 0.1 to 50% by weight, and usually 0.5 to 30% by weight is preferable, and particularly, 120 to 20% by weight is preferable. More preferred. It can also be used in water or mineral oil to enhance handling safety or to prevent oxidation of metal surfaces.
- the amount of the Group VIII metal catalyst used is preferably 0.000001 0.1 lg in terms of metal, as long as a catalytic amount is used for the optically active imine lg represented by the formula [1]. 0.00005- 0.05g force S better than S.
- the amount of hydrogen used may be 1 mol or more per 1 mol of the optically active imine represented by the formula [1], but usually the reaction is carried out in a hydrogen atmosphere and a large excess is used. .
- the hydrogen pressure of the hydrogen atmosphere and at 5MPa or less, usually rather preferably is 0. 01- 3 MPa, preferably from particular 0. 05- 2 MPa force S Le, 0
- reaction solvent examples include aliphatic hydrocarbons such as n-pentane, n-hexane, cyclohexane, and n-heptane, and aromatic hydrocarbons such as benzene, toluene, ethylbenzene, xylene, and mesitylene.
- ester such as ethyl acetate, n-butyl acetate, methanol, ethanol,
- Acidic aqueous solutions of acetic acid, hydrochloric acid, and acidic aqueous solutions of hydrobromic acid are preferred.
- methanol, ethanol, n-propanol, i-propanol, n-butanol, n-pentanol, n-hexanol, and cyclohexanol are preferred.
- Acidic aqueous solutions of xanol, n-heptanol, n-octanol, hydrochloric acid and acidic aqueous solutions of hydrobromic acid are more preferred.
- These reaction solvents can be used alone or in combination.
- the amount of the reaction solvent used is 0.01 per mol of the optically active imine represented by the formula [1]. If L (liter) or more is used, it is usually preferable to use 0.05-20L force S, especially 0.1-10L force.
- the temperature condition is usually -50 to + 100 ° C, preferably 40 to + 60 ° C, and more preferably _30 to + 10 ° C.
- this temperature condition is particularly important. At a low temperature of 10 ° C. or lower, an optically active secondary amine having a relative configuration of R—R or S—S which is advantageous for salt purification in the third step is produced. In addition to being able to obtain high diastereoselectivity, it is possible to control almost completely the by-products of 1,2,2,2-trifluoroethylamine substituted by 1,2-alkylyl-substituted 1,2,2-trifluoroethylamine due to excess reaction. See Table 1). On the other hand, the lower the reaction temperature, the better the results obtained. Under extremely low temperature conditions of less than _50 ° C, the reaction rate becomes extremely slow, which is not always a practical temperature condition.
- an optically active secondary amine having a relative configuration of R—R or S—S which is advantageous for salt purification in the third step, cannot be obtained with high diastereoselectivity and further excess This is not an effective temperature condition because the reaction involves by-products of 1-alkyl-substituted 2,2,2-trifluoroethylamine with low optical purity.
- the reaction time is usually 0.1 to 240 hours, but varies depending on the reaction substrate and reaction conditions. Therefore, the progress of the reaction is monitored by analytical means such as gas chromatography, liquid chromatography, and NMR. It is preferable that the time when the raw material almost disappears is the end point.
- the post-treatment is not particularly limited, but a crude product can be obtained by performing ordinary post-treatment operations after the reaction. If the desired optically active secondary amine represented by the formula [2] has a low boiling point or a high volatility, and if the volatility is high, the filtrate obtained by removing the Group VIII metal catalyst from the reaction completed solution by celite filtration or the like. In addition, an acid corresponding to the salt derived in the third step may be added in advance, and post-treatment operations such as concentration may be performed to recover in the form of a salt.
- the desired optically active secondary amine represented by the formula [2] has a high boiling point and low volatility
- inorganic By neutralizing with a basic aqueous solution of a base and extracting with an organic solvent, the desired optically active secondary amine represented by the formula [2] can be efficiently recovered as a free base.
- the crude product can be By performing purification operations such as activated carbon treatment, distillation, and recrystallization, the desired optically active secondary amine represented by the formula [2] can be obtained with high chemical purity.
- the salt purification in the third step is performed by deriving the optically active secondary amine represented by the formula [2] into its salt and purifying it by recrystallization.
- Examples of the acid include an inorganic acid and an organic acid.
- Examples of the inorganic acid include carbonic acid, hydrochloric acid, sulfuric acid, nitric acid, hydrobromic acid, hydroiodic acid, phosphoric acid, boric acid, perchloric acid and the like. Among them, hydrochloric acid and hydrobromic acid are preferred, and particularly, hydrobromic acid is more preferred.
- organic acids include acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, hexanoic acid, heptanoic acid, cyclohexanecarboxylic acid, octanoic acid, phenylacetic acid, and 3_phenylene Aliphatic carboxylic acids such as propionic acid, chloroacetic acid, dichloroacetic acid, trichloroacetic acid, fluoroacetic acid, difluoroacetic acid, trifluoroacetic acid, bromoacetic acid, odoacetic acid, 2-chloropropionic acid, 3-chloropropionic acid, etc.
- Aliphatic carboxylic acids such as propionic acid, chloroacetic acid, dichloroacetic acid, trichloroacetic acid, fluoroacetic acid, difluoroacetic acid, trifluoroacetic acid, bromoacetic acid, odoace
- Unsaturated carboxylic acids such as haloalkyl carboxylic acids, acrylic acid, crotonic acid, citraconic acid, maleic acid, fumaric acid, cis or trans cinnamic acid, benzoic acid, o—, m or p toluic acid, o—, m Or p-fluorobenzoic acid, ⁇ -, m or p-chlorobenzoic acid, o—, m or p-bromobenzoic acid, o-1, m or p-eodobenzoic acid, o—, m Or p-hydroxybenzoic acid, o—, m or p-anisic acid, ⁇ -, m or p-aminobenzoic acid, o—, m or p—dinitrobenzoic acid, o—, m or p_cyano Benzoic acid, o-, m- or p-benzenedicarboxylic acid (phthalic
- Aromatic carboxylic acids methanesulfonic acid, chloromethanesulfonic acid, trifluoromethanesulfonic acid, benzenesulfonic acid, sulfonic acids such as ⁇ -tonolenesulfonic acid, ⁇ -phenolsulfonic acid, lactic acid, malic acid, tartaric acid
- Optically active carboxylic acids such as dibenzoyltartaric acid, 2-phenylpropionic acid, mandelic acid, camphoric acid, and cis- 1-benzamidocyclohexanecarboxylic acid;
- Optically active sulfonic acids such as ethanes-nolefonic acid and 10-camphorsulfonic acid; optically active phosphoric acids such as 2,2 ⁇ - (1,1 ⁇ -binaphthyl) phosphoric acid; optical such as 4-aminobutyric acid, phenyldaricin, and aspartic acid Active amino acids, pyrogluta
- Optically active carboxylic acids, optically active sulfonic acids, optically active phosphoric acids, optically active amino acids and optically active N-acyl amino acids have optical isomers, and both optical isomers can be used. Among them, optically active 10-camphorsulfonic acid is more preferable.
- the amount of the acid to be used is preferably 0.3 to 5 mol per mol of the optically active secondary amine represented by the formula [2], and usually 0.4 to 5 mol is preferable. In particular, 0.5-3 mol is more preferable.
- the method for preparing the salt may be appropriately determined according to the combination of the optically active secondary amine represented by the formula [2] and the acid, and usually the optically active secondary amine represented by the formula [2] is used in a recrystallization solvent. It can be prepared by directly adding and mixing the amine and the acid, or by preparing the respective solutions in advance and mixing the solutions. Crystal precipitation can be carried out directly from the prepared salt solution, or it can be carried out after the prepared salt solution is once concentrated and dissolved again in the recrystallization solvent.
- the recrystallization solvent is not particularly limited as long as it does not react with the optically active secondary amine represented by the formula [2], the acid or a salt prepared therefrom, but the diastereomer excess before purification (De) or the target diastereomer excess after purification (de), recovery rate, etc., as appropriate.
- recrystallization solvent examples include aliphatic hydrocarbons such as n-pentane, n-hexane, cyclohexane, and n-heptane; aromatic hydrocarbons such as benzene, toluene, ethylbenzene, xylene, and mesitylene; Halogenated hydrocarbons such as methylene chloride, chlorophonolem and 1,2-dichloroethane, ethers such as getyl ether, tetrahydrofuran, tert-butyl methyl ether and 1,4-dioxane, acetone, methyl ethyl ketone and methyl isobutyl ketone Ketones such as ethyl acetate, n -butyl acetate, etc., nitriles such as acetonitrile and propionitrile, alcohols such as methanol, ethanol, n-propanol
- These recrystallization solvents can be used alone or in combination.
- the amount of the recrystallization solvent to be used is not particularly limited as long as the salt before purification completely or partially dissolves when heated, but the diastereomer excess (de) before purification, or the like. Alternatively, it may be appropriately determined according to the target diastereomer excess (de) and the recovery rate after purification. It is sufficient to use at least 0.3 OIL (liter) per mole of the salt of the optically active secondary amine represented by the formula [2] before purification. 10 L is more preferred.
- the relative configuration of the two asymmetric carbons of the optically active secondary amine represented by the formula [2] to be subjected to salt purification is not particularly limited, but is preferably the R-R form or the SS form. It can be purified more advantageously than S—R or R—S form.
- (d.e.) is not particularly limited, but is usually preferably 5% d.e. or more, and particularly preferably 10% d.e. or more.
- the addition of a seed crystal can enhance the ability to precipitate crystals smoothly and efficiently. It is usually 97 if the diastereomer excess (de) of the seed crystal is 95% de or more. / 0 de or more is preferred, and especially 99% de or more is more preferred.
- the amount of seed crystal to be used is usually 0.0001g or more per mole of the salt of the optically active secondary amine of the formula [2] before purification. 20g is preferred, especially 0.01-more preferred than 10g power.
- the temperature conditions can be appropriately determined depending on the boiling point and the freezing point of the recrystallization solvent to be used. Usually, the salt before purification is dissolved at a temperature from room temperature (25 ° C) to a temperature near the boiling point of the recrystallization solvent, It is preferred that the temperature be gradually lowered to sufficiently precipitate crystals at -20 to + 20 ° C. It is usually preferable to add the seed crystal during the cooling.
- the diastereomer excess (de) of the precipitated crystals is usually improved. Therefore, by collecting the precipitated crystals by filtration or the like, a salt having a high diastereomer excess (d.e.) can be obtained. Can be Further, depending on the combination of the optically active secondary amine represented by the formula [2] and the acid, the diastereomer excess (de) in the mother liquor may be improved. By removing the precipitated crystals by filtration or the like, a high diastereomer excess is obtained. A solution containing the salt at a rate (de) is obtained. Further, by repeating these purification operations, it is possible to purify to a higher diastereomer excess (d.e.).
- the obtained salt can be used as it is or after being neutralized and returned to a free base.
- the free base can be efficiently recovered by neutralizing with a basic aqueous solution of an inorganic base and extracting with an organic solvent.
- the hydrogenolysis in the fourth step is carried out by hydrolyzing the optically active secondary amine represented by the formula [2] or a salt thereof.
- the R—R or R—S form of the optically active secondary amine represented by the formula [2] or a salt thereof is converted to the optically active 1 alkyl-substituted 2 represented by the formula [3].
- 2,2 Trifluoroethylamine or its salt R physical strength It can be obtained without lowering the optical purity.
- the S form can be obtained without lowering the optical purity.
- the hydrogenolysis can be carried out in a hydrogen atmosphere using a Group VIII metal catalyst. Accordingly, the present reaction conditions can be carried out by using the reaction conditions employed in the asymmetric reduction in the second step in the same manner.
- the optically active imine represented by the formula [1] is replaced with the optically active secondary amine represented by the formula [2]
- the optically active secondary amine represented by the formula [2] is represented by the formula [3].
- the reaction condition includes a temperature condition, which will be described in detail below.
- the temperature condition is 20 to 200 ° C, usually 30 to 150 ° C is preferable, and particularly 40 to 100 ° C is more preferable.
- the post-processing will be described in detail.
- the post-treatment is not particularly limited, and a crude product can be obtained by performing ordinary post-treatment operations after completion of the reaction.
- the reaction-terminated liquid is filtered through celite or the like.
- the acid described in the third step, salt purification may be added to the filtrate in advance, followed by a post-treatment operation such as concentration to recover the salt in the form of a salt.
- the formula [2] when the reaction is carried out using the salt of the optically active secondary amine shown in, or the reaction is carried out using an acidic aqueous solution of an acid as the reaction solvent, the reaction is neutralized with a basic aqueous solution of an inorganic base, and the organic solvent is used. By the extraction, the desired optically active monoalkyl-substituted 1,2,2,2-trifluoroethylamine represented by the formula [3] can be efficiently recovered as a free base.
- the crude product is subjected to purification operations such as activated carbon treatment, distillation, and recrystallization, if necessary, to obtain the desired optically active monoalkyl-substituted -2,2,2_trifluoro represented by the formula [3].
- Loethylamine can be obtained with high chemical purity.
- Run 9 in Table 1 is shown below as a representative example. Runl-8 was performed in the same manner as mn9 under the reaction conditions shown in Table 1.
- a part of the filtrate obtained through celite filtration was concentrated under reduced pressure, dried in vacuo, and the following formula was obtained by 'H-NMR spectrum and 19 F-NMR spectrum.
- a toluene solution of PPTS prepared by stirring and preparing 57.64 g (0.303 mol, 0.05 eq) of PTS'-hydrate and 24.00 g (0.303 mol, 0.05 eq) of pyridine in 460 ml of toluene in advance , And the mixture was stirred at an internal temperature of 60 to 84 ° C for 7 hours and 30 minutes. The conversion of the reaction was determined by gas chromatography and was greater than 85%.
- reaction-finished solution is washed once with 1000 ml of 1N aqueous sodium hydroxide solution, four times with 1500 ml of 3N aqueous ammonium chloride solution, then once with 1000 ml of 10% saline, and the recovered organic layer is subjected to reduced pressure. Concentrate, vacuum dry, and
- a crude optically active imine product represented by the following formula was obtained.
- the gas chromatography purity of the crude product was 82.7%.
- the total yield of the first purified crystal, the second purified crystal, and the third crude crystal was 90%.
- the enantiomeric excess (ee) is determined by chiral gas chromatography by deriving a salt of optically active 1-alkyl-substituted-2,2,2-trifluoroethylamine into a benzamide derivative using excess benzoyl chloride and pyridine. did.
- the H-NMR spectrum and 19 F-NMR spectrum are shown below.
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Description
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Priority Applications (3)
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DE602004030571T DE602004030571D1 (de) | 2003-06-11 | 2004-06-08 | Verfahren zur herstellung optisch aktiven 1-alkyl-substituierter 2,2,2-trifluorethylamins |
EP04745665A EP1642884B1 (en) | 2003-06-11 | 2004-06-08 | Process for producing optically active 1-alkyl-substituted 2,2,2-trifluoroethylamine |
US10/560,251 US7393979B2 (en) | 2003-06-11 | 2004-06-08 | Process for producing optically active 1-alkyl-substituted 2,2,2-trifluoroethylamine |
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JP2003166525A JP4287703B2 (ja) | 2003-06-11 | 2003-06-11 | 光学活性1−アルキル置換−2,2,2−トリフルオロエチルアミンの製造方法 |
JP2003-166525 | 2003-06-11 |
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US (1) | US7393979B2 (ja) |
EP (1) | EP1642884B1 (ja) |
JP (1) | JP4287703B2 (ja) |
CN (1) | CN100422138C (ja) |
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JP2007297395A (ja) * | 2006-05-05 | 2007-11-15 | Softgel Formulators Inc | 高吸収性コエンザイムq10組成物及びその製造方法 |
WO2009080511A1 (de) * | 2007-12-21 | 2009-07-02 | Basf Se | Verfahren zur diastereoselektiven umsetzung von chiralen iminen |
JP5902575B2 (ja) * | 2012-07-20 | 2016-04-13 | 国立大学法人お茶の水女子大学 | 光学活性含フッ素アミン化合物の製造方法並びに光学活性含フッ素アミン化合物 |
JP6912997B2 (ja) * | 2016-10-27 | 2021-08-04 | 三洋化成工業株式会社 | 含フッ素脂肪族アミン塩酸塩の製造方法 |
JP6889646B2 (ja) * | 2016-10-27 | 2021-06-18 | 三洋化成工業株式会社 | 含フッ素脂肪族アミン塩酸塩の製造方法 |
CN110681386B (zh) * | 2019-10-23 | 2022-04-22 | 东北大学秦皇岛分校 | 一种FeOOH包覆铜酸镨纳米催化粉体的制备方法 |
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JPH10182578A (ja) * | 1996-12-19 | 1998-07-07 | Agency Of Ind Science & Technol | 不斉な含フッ素一級アミンの製造法 |
JP2002030048A (ja) * | 2000-05-11 | 2002-01-29 | Central Glass Co Ltd | 光学活性α−メチル−ビス−3,5−(トリフルオロメチル)ベンジルアミンの製造方法 |
-
2003
- 2003-06-11 JP JP2003166525A patent/JP4287703B2/ja not_active Expired - Lifetime
-
2004
- 2004-06-08 EP EP04745665A patent/EP1642884B1/en not_active Expired - Fee Related
- 2004-06-08 US US10/560,251 patent/US7393979B2/en not_active Expired - Fee Related
- 2004-06-08 CN CNB2004800227005A patent/CN100422138C/zh not_active Expired - Fee Related
- 2004-06-08 WO PCT/JP2004/007955 patent/WO2004110977A1/ja active Application Filing
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JPH10182578A (ja) * | 1996-12-19 | 1998-07-07 | Agency Of Ind Science & Technol | 不斉な含フッ素一級アミンの製造法 |
JP2002030048A (ja) * | 2000-05-11 | 2002-01-29 | Central Glass Co Ltd | 光学活性α−メチル−ビス−3,5−(トリフルオロメチル)ベンジルアミンの製造方法 |
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US7393979B2 (en) | 2008-07-01 |
EP1642884A1 (en) | 2006-04-05 |
CN1832918A (zh) | 2006-09-13 |
EP1642884B1 (en) | 2010-12-15 |
CN100422138C (zh) | 2008-10-01 |
EP1642884A4 (en) | 2007-12-26 |
JP2005002036A (ja) | 2005-01-06 |
DE602004030571D1 (de) | 2011-01-27 |
US20060281950A1 (en) | 2006-12-14 |
JP4287703B2 (ja) | 2009-07-01 |
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