WO2017163680A1 - 反応組成物及びこれを用いた反応システム - Google Patents
反応組成物及びこれを用いた反応システム Download PDFInfo
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- WO2017163680A1 WO2017163680A1 PCT/JP2017/005583 JP2017005583W WO2017163680A1 WO 2017163680 A1 WO2017163680 A1 WO 2017163680A1 JP 2017005583 W JP2017005583 W JP 2017005583W WO 2017163680 A1 WO2017163680 A1 WO 2017163680A1
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- WIPO (PCT)
- Prior art keywords
- reaction
- base
- reaction composition
- aromatic
- reactant
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 156
- 239000000203 mixture Substances 0.000 title claims abstract description 102
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 44
- -1 aromatic nitro compound Chemical class 0.000 claims abstract description 41
- 239000003054 catalyst Substances 0.000 claims abstract description 39
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims abstract description 39
- 239000002245 particle Substances 0.000 claims abstract description 28
- 239000003960 organic solvent Substances 0.000 claims abstract description 27
- 239000000376 reactant Substances 0.000 claims abstract description 27
- 125000005843 halogen group Chemical group 0.000 claims abstract description 23
- 125000003277 amino group Chemical group 0.000 claims abstract description 17
- 150000004982 aromatic amines Chemical class 0.000 claims abstract description 11
- 125000001424 substituent group Chemical group 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000000047 product Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 14
- 239000007795 chemical reaction product Substances 0.000 claims description 9
- 239000012024 dehydrating agents Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 229910052799 carbon Inorganic materials 0.000 description 18
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- 229910052736 halogen Inorganic materials 0.000 description 15
- 230000000694 effects Effects 0.000 description 12
- 238000005695 dehalogenation reaction Methods 0.000 description 10
- 239000011734 sodium Substances 0.000 description 10
- 125000004429 atom Chemical group 0.000 description 9
- 230000008030 elimination Effects 0.000 description 9
- 238000003379 elimination reaction Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 9
- CUYKNJBYIJFRCU-UHFFFAOYSA-N 3-aminopyridine Chemical group NC1=CC=CN=C1 CUYKNJBYIJFRCU-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 125000000962 organic group Chemical group 0.000 description 6
- 229910015189 FeOx Inorganic materials 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 238000007256 debromination reaction Methods 0.000 description 4
- HUUFTVUBFFESEN-UHFFFAOYSA-N 2-bromo-5-nitropyridine Chemical compound [O-][N+](=O)C1=CC=C(Br)N=C1 HUUFTVUBFFESEN-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- ZDFBKZUDCQQKAC-UHFFFAOYSA-N 1-bromo-4-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(Br)C=C1 ZDFBKZUDCQQKAC-UHFFFAOYSA-N 0.000 description 2
- XTHKRYHULUJQHN-UHFFFAOYSA-N 6-bromopyridin-3-amine Chemical compound NC1=CC=C(Br)N=C1 XTHKRYHULUJQHN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000006298 dechlorination reaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910021397 glassy carbon Inorganic materials 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 239000012433 hydrogen halide Substances 0.000 description 2
- 229910000039 hydrogen halide Inorganic materials 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000002917 insecticide Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- NTBYINQTYWZXLH-UHFFFAOYSA-N 1,2-dichloro-4-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(Cl)C(Cl)=C1 NTBYINQTYWZXLH-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
- ORLPGMKKCAEWOW-UHFFFAOYSA-N 1-chloro-2,5-dimethoxy-4-nitrobenzene Chemical compound COC1=CC([N+]([O-])=O)=C(OC)C=C1Cl ORLPGMKKCAEWOW-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- CZGCEKJOLUNIFY-UHFFFAOYSA-N 4-Chloronitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(Cl)C=C1 CZGCEKJOLUNIFY-UHFFFAOYSA-N 0.000 description 1
- YGUFQYGSBVXPMC-UHFFFAOYSA-N 4-chloro-2,5-dimethoxyaniline Chemical compound COC1=CC(Cl)=C(OC)C=C1N YGUFQYGSBVXPMC-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002635 aromatic organic solvent Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- FVJFRFUSHCIRKP-UHFFFAOYSA-N disodium;hydrogen borate Chemical compound [Na+].[Na+].OB([O-])[O-] FVJFRFUSHCIRKP-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8906—Iron and noble metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/617—500-1000 m2/g
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
- C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
- C07C209/36—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
- C07C209/365—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst by reduction with preservation of halogen-atoms in compounds containing nitro groups and halogen atoms bound to the same carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/72—Nitrogen atoms
- C07D213/73—Unsubstituted amino or imino radicals
Definitions
- the present invention relates to a reaction composition containing a catalyst and an organic solvent, and a reaction system using the same. More specifically, the present invention relates to a catalyst and an organic solvent used in a hydrogenation reaction of an unsaturated cyclic compound (aromatic nitro compound) having a structure in which one or more nitro groups are directly bonded to a ring skeleton. And a reaction composition comprising: In addition, the present invention uses the reaction composition of the present invention to selectively hydrogenate the nitro group of the aromatic nitro compound, which is a reactant, and to sufficiently reduce elimination of halogen atoms from the ring. The present invention relates to a reaction system capable of realizing a reaction.
- Aromatic halogenamines having a structure in which one or more nitro groups and one or more amino groups are directly bonded as substituents to the same ring skeleton are used as pharmaceuticals, dyes, insecticides and herbicides. It is an important raw material.
- This aromatic halogenamine is, for example, an aromatic halogen nitro compound having a chemical structure corresponding to the aromatic halogenamine (a state in which one or more nitro groups and one or more halogen atoms are separated into ring skeletons of the same ring as substituents, respectively) Can be produced by a hydrogenation reaction (catalytic hydrogenation reaction).
- Non-Patent Documents 1 to 6 In general, it is known that a dehalogenation reaction of an aromatic halogen compound is promoted under a condition in which a noble metal catalyst such as Pt or Pd and a base (NaOH, KOH, NH 4 OH) coexist (for example, Non-Patent Documents 1 to 6). Neutralizing the hydrogen halide generated by the dehalogenation reaction by the base is considered as the reason for promoting the dehalogenation reaction.
- Non-Patent Document 1 page 25, left column, formulas (11) to (13) showing the liquid phase dechlorination reaction, Non-patent document 3, page 98, left column, liquid phase dechlorination reaction. (1) to (3) showing
- Patent Document 1 discloses a hydrogenation reaction of an aromatic halogen nitro compound (in Patent Document 1, “aromatic nitro derivative having a halogen atom bonded to an aromatic nucleus”) with the intention of avoiding a dehalogenation reaction.
- aromatic halogen nitro compound in Patent Document 1, “aromatic nitro derivative having a halogen atom bonded to an aromatic nucleus”
- Patent Document 2 discloses that activated carbon is finely loaded on activated carbon as a carrier with a predetermined amount of Pt and Cu, with the intention of allowing selective hydrogenation of the nitro group of the aromatic halogen nitro compound.
- Noble metal catalysts distributed in the region have been proposed.
- Patent Document 3 the hydrogenation of a nitro group of an aromatic halogen nitro compound (for example, 1-nitro-3,4-dichlorobenzene, 4-nitrochlorobenzene) is intended to proceed selectively,
- a catalyst containing Pt-supported carbon and Fe oxide-supported carbon (or Fe hydroxide-supported carbon) has been proposed.
- Patent Document 4 discloses the product 4-chloro-2,5-dimethoxyaniline in the hydrogenation reaction of the nitro group of an aromatic halogen nitro compound (4-chloro-2,5-dimethoxy-1-nitrobenzene). Intended to be isolated from a solvent (xylene) without crystallization, a sulfite-supported Pt-supported carbon catalyst, an aliphatic open-chain amine (especially morpholine), an alkaline aqueous solution ⁇ in aqueous solution a compound giving a pH of 8 to 10 (for example, disodium borate, sodium formate, sodium acetate, sodium carbonate, disodium hydrogen phosphate, sodium hydroxide) ⁇ and a predetermined amount of water (30 mL in Example 1 of Patent Document 4) And a reaction system containing a predetermined amount of an aromatic organic solvent (675 mL in Example 1 of Patent Document 4). It has been proposed.
- a solvent xylene
- the present invention has been made in view of such technical circumstances, and is an aromatic nitro compound having a structure in which a nitro group and a halogen atom are directly bonded to each other as a substituent in a ring skeleton of the same ring. It is an object of the present invention to provide a reaction composition that can selectively hydrogenate a nitro group and sufficiently reduce elimination of a halogen atom from a ring.
- the present inventors have obtained a catalyst in which Fe oxide particles are supported on a carrier, a predetermined base, and a predetermined organic solvent in addition to Pt particles.
- the present inventors have found that the composition of the reaction composition possessed is effective and have completed the present invention.
- the present invention includes the following technical matters. That is, the present invention (N1) An aromatic nitro compound having a structure in which one or more nitro groups and one or more halogen atoms are directly bonded as substituents in a ring skeleton of the same ring is used as a reactant, A catalyst used in a hydrogenation reaction to convert at least one of the nitro groups to an amino group; With a base, An organic solvent capable of dissolving at least a part of the reactant, Contains The catalyst includes a support, Pt particles and Fe oxide particles supported on the support, The base has a stronger basicity than at least one of aromatic amines having one or more amino groups obtained as a product by the hydrogenation reaction. A reaction composition is provided.
- “Ka” indicates a concentration acid dissociation constant.
- “the state in which the base has a stronger basicity than the product” means “the pKa of the base is larger than the pKa of the product”.
- the comparison between the pKa of the base and the product pKa may not use the pKa of the base and the product pKa measured in the actual reaction system.
- reaction composition of the present invention described in (N1) is a reactant.
- reaction composition of the present invention described in (N2) is a reactant.
- An aromatic nitro compound may be further contained.
- reaction composition of the present invention described in (N2) is (N3)
- An aromatic amine having at least one amino group obtained as a product by a hydrogenation reaction of an aromatic nitro compound may be further included.
- the reaction composition of the present invention according to any one of (N1) to (N3) It is preferable that the (N4) base and the constituent components of the solvent used in the hydrogenation reaction satisfy the condition of the following formula (1). 0.90 ⁇ ⁇ 1000 ⁇ (B / Vs) ⁇ ⁇ 190.00 (1) [In Formula (1), B shows the amount (mol) of a base, and Vs shows the volume (L) of an organic solvent. ]
- the effect of the present invention can be obtained more reliably. be able to.
- the reaction composition of the present invention according to any one of (N1) to (N4) is (N5) It is preferable that the base and the reactant used in the hydrogenation reaction satisfy the condition of the following formula (2). 0.35% ⁇ ⁇ 100 ⁇ (B / R) ⁇ ⁇ 75.50% (2) [In formula (2), B represents the amount of substance (mol) of the base, and R represents the amount of substance (mol) of the reaction product. ]
- the effect of the present invention is achieved by adjusting the amount of the base contained in the reaction composition within a range that satisfies the condition of the above formula (1) with respect to the amount of the reactant in the reaction system in which the reaction composition is used. Can be obtained more reliably.
- any one of the reaction compositions of the present invention (N1) to (N5) is (N6) It is preferable that water is further contained and the content satisfies the condition of the following formula (3). 0.00% ⁇ ⁇ 100 ⁇ (Vh / Vs) ⁇ ⁇ 30.00% (3) [In Formula (3), Vh shows the volume (L) of water supplied other than reaction product water, and Vs shows the volume (L) of an organic solvent. ]
- the inventors of the present invention have the effect that the reaction composition of the present invention reduces the dehalogenation reaction by setting the amount of water in the reaction system in which the reaction composition of the present invention is used as relatively small as described above. I have found out that it will definitely work. This is a configuration different from the catalyst described in Patent Document 4 (a catalyst that has a configuration that does not contain Fe oxide and is used in a reaction system that includes water). Is a remarkable effect.
- reaction composition (N6) from the same viewpoint, (N7) It is more preferable that the water further satisfies the condition of the following formula (4). 1.00% ⁇ ⁇ 100 ⁇ (Vh / Vs) ⁇ ⁇ 5.00% (4)
- reaction composition of any one of (N1) to (N5) (N8) A dehydrating agent may be further included.
- the amount of water in the reaction composition of the present invention can be reduced, and the effects of the present invention can be easily obtained.
- the present invention also provides a reaction system including a reaction vessel that can contain the reaction composition according to any one of (N1) to (N8) as a reactant.
- the reaction system of the present invention uses the reaction composition of the present invention, the nitro group of the aromatic nitro compound that is the reactant can be selectively hydrogenated, and the elimination of halogen atoms from the ring can be sufficiently reduced. Hydrogenation reaction can be realized.
- the hydrogen of a nitro group of an aromatic nitro compound (aromatic halogen nitro compound) having a structure in which a nitro group and a halogen atom are directly bonded as substituents to the ring skeleton of the same ring.
- aromatic nitro compound aromatic halogen nitro compound
- a reaction composition that can selectively hydrogenate a nitro group and sufficiently reduce elimination of a halogen atom from a ring is provided.
- a system can be provided.
- the reaction composition of this embodiment contains a catalyst, a base, and an organic solvent.
- the catalyst includes a support, Pt particles supported on the support, and Fe oxide particles.
- the base has a basicity stronger than at least one of aromatic amines having one or more amino groups obtained as a product by a hydrogenation reaction.
- the organic solvent has a chemical property capable of dissolving at least a part of the reactant.
- the catalyst contained in the reaction composition is not particularly limited as long as it contains a support, Pt particles and Fe oxide particles supported on the support.
- the catalyst carrier is not particularly limited as long as it can support Pt particles and Fe oxide particles and has a large surface area. It can be suitably selected from carbon materials such as activated carbon, pulverized activated carbon, glassy carbon (GC), fine carbon, carbon black, graphite, and carbon fiber, and glass or ceramic materials such as oxides.
- carbon materials such as activated carbon, pulverized activated carbon, glassy carbon (GC), fine carbon, carbon black, graphite, and carbon fiber, and glass or ceramic materials such as oxides.
- the specific surface area of the carrier is preferably 500 m 3 / g or more, more preferably 800 m 3 / g or more, and still more preferably 1000 m 3 / g or more.
- the Fe oxide is not particularly limited, but it is preferable that Fe 2 O 3 is the main component.
- the base contained in the reaction composition has a basicity stronger than at least one of aromatic amines having one or more amino groups obtained as a product by a hydrogenation reaction.
- Pt particles, Fe there is no particular limitation as long as it has a stability in which a chemical reaction does not proceed with these particles at normal temperature and pressure in a state where it is mixed with oxide particles.
- Either an inorganic base or an organic base can be employed.
- the base can be appropriately set in consideration of the combination with the reactant and solvent in the reaction system to be used.
- the base is preferably sodium carbonate, sodium hydrogen carbonate, potassium carbonate, triethylamine, or sodium acetate from the viewpoint of availability.
- the reaction composition may contain in advance an aromatic nitro compound as a reactant.
- an aromatic amine having at least one amino group obtained as a product by a hydrogenation reaction of an aromatic nitro compound may be further included.
- aromatic amine having one or more amino groups is desirably an aromatic halogenamine as a main product, but within the range where the effects of the present invention can be obtained (allowed in the reaction system used). There may be some aromatic amines that are dehalogenated (within range).
- the content of the base contained in the reaction composition may be set to an optimum value in the reaction system and reaction conditions in which the reaction composition is used.
- the reaction composition comprises a base and the components of the solvent used in the hydrogenation reaction satisfy the conditions of the following formula (1): It is preferable to satisfy. 0.90 ⁇ ⁇ 1000 ⁇ (B / Vs) ⁇ ⁇ 190.00 (1)
- B shows the amount (mol) of a base
- Vs shows the volume (L) of an organic solvent.
- the base and the reactant used in the hydrogenation reaction satisfy the condition of the following formula (2) from the viewpoint of obtaining the effect of the present invention more reliably.
- formula (2) B represents the amount of substance (mol) of the base, and R represents the amount of substance (mol) of the reaction product. ]
- the constituent components of the solvent used in the hydrogenation reaction satisfy the condition of the following formula (3) from the viewpoint of more reliably obtaining the effects of the present invention. It is preferable. 0.00% ⁇ ⁇ 100 ⁇ (Vh / Vs) ⁇ ⁇ 30.00% (3) [In Formula (3), Vh shows the volume (L) of water supplied other than reaction product water, and Vs shows the volume (L) of an organic solvent. ]
- the water further satisfies the condition of the following formula (4). 1.00% ⁇ ⁇ 100 ⁇ (Vh / Vs) ⁇ ⁇ 5.00% (4)
- the reaction composition may further contain a dehydrating agent.
- the dehydrating agent is not particularly limited as long as it has a stability that does not proceed with a chemical reaction at normal temperature and normal pressure in a state where it is mixed with Pt particles, Fe oxide particles and a base.
- preferred examples of the dehydrating agent include zeolite, sodium sulfate, and magnesium sulfate from the viewpoint of availability.
- the solvent contained in the reaction composition is not particularly limited as long as it has chemical properties capable of dissolving at least a part of the reactant (aromatic halogen nitro compound).
- the reactant aromatic halogen nitro compound
- toluene, xylene, benzene, chlorobenzene, dichlorobenzene, and alcohol having 1 to 3 carbon atoms are preferable. You may employ
- the reactant (aromatic halogen nitro compound) in the reaction system in which the reaction composition is used is not particularly limited, but preferably has a structure represented by the following general formula (C1).
- n represents an integer of 1 or more
- m represents an integer of 1 or more
- ⁇ represents an integer of 0 or more
- ⁇ represents an integer of 0 or more
- R represents a hydrogen atom, an amino group, a hydroxyl group, or a monovalent or higher-valent organic group having one or more carbon atoms
- X represents any of halogen atoms
- Indicate the atom of the species, and Y and Z may be the same or different.
- R when ⁇ is 2 or more, R may be a divalent organic group bonded to two adjacent Y atoms.
- the aromatic nitro compound may have a condensed ring compound structure.
- R which is a monovalent or higher valent organic group, may have a structure in which the moiety bonded to Y ⁇ is represented by “—O—” or “—S—”.
- the reactant (aromatic halogen nitro compound) in the reaction system in which the reaction composition is used may have a structure represented by the following general formula (C2).
- n represents an integer of 1 or more
- m represents an integer of 1 or more
- ⁇ represents an integer of 0 or more
- ⁇ represents an integer of 0 or more
- R represents a hydrogen atom, an amino group, a hydroxyl group, or a monovalent or higher-valent organic group having one or more carbon atoms
- X represents any of halogen atoms
- Shows two atoms, Z represents an atom of C, N, O, or S when ⁇ 1, and at least selected from the group consisting of C, N, O, and S when ⁇ ⁇ 2.
- R which is a monovalent or higher valent organic group, may have a structure in which the moiety bonded to Y ⁇ is represented by “—O—” or “—S—”.
- the portion represented by “XJ-” is a structure represented by the following formulas (C2-1), (C2-2), (C2-3), and (C2-4) You may have.
- XC- (C O) -N- (C2-1)
- X ⁇ C C ⁇ C ⁇ (C2-2)
- X 1 and X 2 each represent one of halogen atoms, and X 1 and X 2 may be the same or different.
- the method for producing the reaction composition is not particularly limited, and a combination of known techniques can be employed.
- the catalyst contained in the reaction composition can be obtained, for example, by reducing a dispersion containing a Pt compound, an Fe compound, and water on a support to obtain a catalyst in which Pt particles and Fe oxide particles are supported on the support. Good.
- the support of Pt and the support of Fe oxide may be performed simultaneously as described above, or either one may be performed first and the other may be performed later.
- the order of mixing is not particularly limited as long as they can be sufficiently mixed without causing an undesired chemical reaction in consideration of their chemical properties.
- the order of mixing is not particularly limited as long as they can be sufficiently mixed without causing an undesired chemical reaction.
- the order of mixing is not particularly limited as long as the reactants can be sufficiently mixed with other components without causing undesired chemical reactions.
- the reaction composition of the present embodiment may be stored in a packaging body such as a container or a bag after production.
- the internal structure of the package that comes into contact with the reaction composition must be configured so as not to cause a chemical reaction with the reaction composition. By setting it as the state accommodated in the reaction composition package, the reaction composition can be easily moved from the production place to the use place when the production place and the use place of the reaction composition are different.
- the reaction system of this embodiment has the structure containing the reaction container which can accommodate the reaction composition of this invention as a reaction material.
- the reaction system of the present embodiment is not particularly limited as long as it has a configuration including a reaction vessel that can contain the reaction composition of the present invention as a reactant.
- the reaction system of the present embodiment is an aromatic nitro compound (aromatic halogen compound) having a structure in which one or more nitro groups and one or more halogen atoms are directly bonded as substituents in the same ring skeleton.
- aromatic nitro compound aromatic halogen compound
- the reaction system of the present embodiment may include the reaction composition of the present invention as a constituent element in advance.
- the reaction system may include the reaction composition of the present invention in advance in the reaction container, or may further include another container that can store and hold the reaction composition in advance in addition to the reaction container. In doing so, the reaction composition may be moved from the other container to the reaction container.
- reaction system of the present embodiment further includes another container that can previously store and hold the components of the reaction composition of the present invention, and before performing the hydrogenation reaction at the place where the hydrogenation reaction is performed.
- reaction composition may be supplied into a predetermined container to produce a reaction composition, and the produced reaction composition may be used for a hydrogenation reaction.
- the reaction system may be configured to have another container that can previously store and hold all of the components of the reaction composition of the present invention, or one of the components of the reaction composition of the present invention. It is good also as a structure which has another container which can accommodate and hold
- the reaction system may be configured to further include another container that can previously store and hold the base and the organic solvent, and the catalyst may be configured to be brought in from another catalyst production site.
- the reaction system of the present embodiment uses the reaction composition of the present invention, the nitro group of the aromatic nitro compound that is the reactant can be selectively hydrogenated, and the elimination of halogen atoms from the ring is sufficiently reduced. A hydrogenation reaction that can be performed can be realized.
- Example 1 As a catalyst, a catalyst in which Pt particles and Fe oxide particles are supported on a carbon support ⁇ trade name “NE-01M02”, Pt content 1.0 wt%, Fe content 0.20 wt%, N. E. CHEMCAT (hereinafter referred to as “Pt—FeOx / C” if necessary) ⁇ was prepared.
- Pt—FeOx / C the carbon support is activated carbon (specific surface area based on BET measurement is 900: m 2 / g), and the Fe oxide particles are mainly composed of Fe 2 O 3 (the result based on XPS analysis indicates Fe 2 O 3 is approximately 100%).
- Commercially available Na 2 CO 3 was prepared as a base.
- Example 2 (Example 2) to (Example 5)
- the reaction compositions of Examples 2 to 5 were prepared using the same preparation conditions and the same raw materials as in Example 1, except that the amount of Na 2 CO 3 was changed to the value shown in Table 1. did.
- Example 6 The reaction composition of Example 6 was prepared using the same raw materials and preparation conditions as in Example 1 except that 20 mg of commercially available K 2 CO 3 was used as the base instead of Na 2 CO 3 . .
- Example 7 The same preparation conditions as in Example 1 were used except that 72.6 mg of commercially available (CH 3 CH 2 ) 3 N was used as a base instead of Na 2 CO 3 . A reaction composition was prepared.
- Example 8 (Example 8) to (Example 14) Except that the volume of water Vh (mL) was changed to the value shown in Table 1, the same preparation conditions and the same raw materials as in Example 3 were used to prepare catalyst mixtures of Examples 8 to 14. did.
- Comparative Example 1 A catalyst and organic solvent made of the same Pt—FeOx / C powder as in Example 1 were used as a reaction composition of Comparative Example 1 without using a base.
- Comparative Example 2 A reaction composition of Comparative Example 2 was prepared using the same raw materials and the same preparation conditions as in Comparative Example 1 except that 200 mg of commercially available NaCl was used without using a base.
- Comparative Example 3 A reaction composition of Comparative Example 2 was prepared using the same preparation conditions and the same raw materials as in Comparative Example 1 except that 30 mg of commercially available Na 2 SO 4 was used without using a base.
- Comparative Example 5 A reaction composition of Comparative Example 2 was prepared using the same preparation conditions and the same raw materials as in Comparative Example 1 except that the amount of Na 2 CO 3 was changed to the value shown in Table 1.
- Comparative Example 6 (Comparative Example 6) to (Comparative Example 8) The same preparation conditions as in Comparative Example 1 except that the amount of Pt / C powder used was 140.0 mg (water content 0.123 mL) and that water was added under the following conditions.
- the reaction compositions of Comparative Examples 6 to 8 were prepared. The amount of water added to the reaction composition of Comparative Example 6 was adjusted to 0.444 mL, and the amount of water added to the reaction compositions of Comparative Example 7 and Comparative Example 8 was adjusted to 1.000 mL, respectively.
- Comparative Example 9 A catalyst and organic solvent made of the same Pt / C powder as in Comparative Example 1 were used as a reaction composition of Comparative Example 9 without using a base.
- 2-bromo-5-nitropyridine represented by the formula (C1-1) has a heterocyclic structure having an N atom.
- 2-bromo-5-nitrobenzene having a structure in which the N atom in this heterocycle is replaced with a C atom 2-bromo-5-nitropyridine is a hydrogenation of the nitro group of the main reaction (main production)
- a side reaction debromination reaction (the by-product is 3-aminopyridine represented by the formula (C1-3)) It is a reaction product that proceeds easily.
- reaction product 2.5 mmol of 2-bromo-5-nitrobenzene represented by the formula (C1-1) Hydrogen pressure: 0.6 MPa Reaction temperature: 50 ° C Reaction time: 5 hours
- a reaction system using the reaction compositions of Examples 1 to 14 satisfying the configuration of the present invention has a configuration similar to that of Patent Document 3 described as a prior art document (a catalyst including a Pt component and an iron oxide component).
- a catalyst including a Pt component and an iron oxide component In comparison with a reaction system using the reaction composition of Comparative Example 1 having an organic solvent (a configuration in which the reaction product is also used as an organic solvent) and having no base) ( It was revealed that the progress of the debromination reaction to 3-aminopyridine represented by C1-3) was sufficiently reduced.
- the reaction composition of the present example shows that the nitro group of the aromatic nitro compound having a structure in which the nitro group and the halogen atom are directly bonded to each other as a substituent in the same ring skeleton.
- the nitro group can be selectively hydrogenated and the elimination of halogen atoms from the ring can be sufficiently reduced.
- the reaction composition of the present invention comprises a nitro group of an aromatic nitro compound (aromatic halogen nitro compound) having a structure in which a nitro group and a halogen atom are directly bonded in the state of being separated into the same ring skeleton as a substituent.
- aromatic nitro compound aromatic halogen nitro compound
- the nitro group can be selectively hydrogenated, and it has a catalytic activity that can sufficiently reduce elimination of halogen atoms from the ring.
- the present invention contributes to the development of efficient mass production technology for aromatic halogenamines, which are important raw materials for pharmaceuticals, dyes, insecticides and herbicides. Contribute to development.
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Abstract
Description
すなわち、本発明は、
(N1)1以上のニトロ基と1以上のハロゲン原子とが置換基として同一の環の環骨格にそれぞれ分かれた状態で直接結合した構造を有する芳香族ニトロ化合物を反応物とし、前記1以上のニトロ基のうちの少なくとも1つをアミノ基に変換する水素化反応に用いられる触媒と、
塩基と、
前記反応物の少なくとも一部を溶解可能な有機溶媒と、
を含んでおり、
前記触媒は、担体と、前記担体上に担持されるPt粒子とFe酸化物粒子と、を含んでおり、
前記塩基は、前記水素化反応により生成物として得られる1以上のアミノ基を有する芳香族アミンのうちの少なくとも1つよりも強い塩基性を有している、
反応組成物を提供する。
なお、本発明において、塩基と、生成物(1以上のアミノ基を有する芳香族アミンのうちの少なくとも1つ)とで塩基性の強さを比較する際の「塩基性」とは、「pKa(=-logKa)」を示す。ここで「Ka」は濃度酸解離定数を示す。本発明においては、「塩基が生成物よりも強い塩基性を有している状態」とは、「塩基のpKaが生成物のpKaよりも大きいこと」を意味する。更に、塩基のpKaと生成物のpKaの比較は、実際の反応系において測定される塩基のpKaと生成物のpKaを使用しなくてよい。このpKaの比較は、「改訂5版 化学便覧基礎編II(日本化学会編)」に定義され記載されている各化合物のKa及びpKa、又は、IUPACのV6委員会のまとめた安定定数データベース(L.D. Pettit, K.J. Powell, ”Stability Constants Database”, Academic Software(1997))に記載されている各化合物のKa及びpKa を使用して比較してよいものとする。
(N2)芳香族ニトロ化合物が更に含まれていてもよい。
(N3)芳香族ニトロ化合物の水素化反応により生成物として得られる少なくとも1つのアミノ基を有する芳香族アミンが更に含まれていてもよい。
(N4)塩基と、水素化反応に使用される溶媒の構成成分が以下の式(1)の条件を満たしていることが好ましい。
0.90≦{1000×(B/Vs)}≦190.00・・・(1)
[式(1)中、Bは塩基の物質量(mol)を示し、Vsは有機溶媒の体積(L)を示す。]
(N5)塩基と、水素化反応に使用される反応物が以下の式(2)の条件を満たしていることが好ましい。
0.35%≦{100×(B/R)}≦75.50%・・・(2)
[式(2)中、Bは塩基の物質量(mol)、Rは反応物の物質量(mol)を示す。]
(N6)水が更に含まれており、その含有量が下記式(3)の条件を満たしていることが好ましい。
0.00%≦{100×(Vh/Vs)}≦30.00%・・・(3)
[式(3)中、Vhは反応生成水以外に投入される水の体積(L)を示し、Vsは有機溶媒の体積(L)を示す。]
(N7)水が下記式(4)の条件を更に満していることが更に好ましい。
1.00%≦{100×(Vh/Vs)}≦5.00%・・・(4)
(N8)脱水剤が更に含まれていてもよい。
本実施形態の反応組成物は、触媒と、塩基と、有機溶媒とを含んでいる。触媒は、担体と、担体上に担持されるPt粒子とFe酸化物粒子と、を含んでいる。また、塩基は、水素化反応により生成物として得られる1以上のアミノ基を有する芳香族アミンのうちの少なくとも1つよりも強い塩基性を有している。更に、有機溶媒は反応物の少なくとも一部を溶解可能な化学的性質を有する。
また、この場合、芳香族ニトロ化合物の水素化反応により生成物として得られる少なくとも1つのアミノ基を有する芳香族アミンが更に含まれていてもよい。
0.90≦{1000×(B/Vs)}≦190.00・・・(1)
[式(1)中、Bは塩基の物質量(mol)を示し、Vsは有機溶媒の体積(L)を示す。]
0.35%≦{100×(B/R)}≦75.50%・・・(2)
[式(2)中、Bは塩基の物質量(mol)、Rは反応物の物質量(mol)を示す。]
0.00%≦{100×(Vh/Vs)}≦30.00%・・・(3)
[式(3)中、Vhは反応生成水以外に投入される水の体積(L)を示し、Vsは有機溶媒の体積(L)を示す。]
1.00%≦{100×(Vh/Vs)}≦5.00%・・・(4)
脱水剤は、Pt粒子、Fe酸化物粒子、塩基と混合された状態において、常温、常圧でこれらと化学反応が進行しない安定性を有していれば特に制限されない。例えば、脱水剤としては、入手容易性などの観点から、ゼオライト、硫酸ナトリウム、硫酸マグネシウムが好ましく挙げられる。
nは、1以上の整数を示し、
mは、1以上の整数を示し、
αは、0以上の整数を示し、
βは、0以上の整数を示し、
5≦(n+m+α+β)≦6であり、
Rは、水素原子、アミノ基、水酸基、又は、炭素原子を1以上有する1価以上の有機基を示し、
Xは、ハロゲン原子のうちのいずれかを示し、
Yは、α=1の場合には、C、N、O、又は、Sの原子を示し、α≧2の場合は、C、N、O、及び、Sからなる群から選択される少なくとも2種の原子を示し、
Zは、β=1の場合には、C、N、O、又は、Sの原子を示し、β≧2の場合は、C、N、O、及び、Sからなる群から選択される少なくとも2種の原子を示し、かつ、
YとZとは同一であっても異なっていてもよい。
nは、1以上の整数を示し、
mは、1以上の整数を示し、
αは、0以上の整数を示し、
βは、0以上の整数を示し、
5≦(n+m+α+β)≦6であり、
Rは、水素原子、アミノ基、水酸基、又は、炭素原子を1以上有する1価以上の有機基を示し、
Xは、ハロゲン原子のうちのいずれかを示し、
Yは、α=1の場合には、C、N、O、又は、Sの原子を示し、α≧2の場合には、C、N、O、及び、Sからなる群から選択される少なくとも2種の原子を示し、
Zは、β=1の場合には、C、N、O、又は、Sの原子を示し、β≧2の場合には、C、N、O、及び、Sからなる群から選択される少なくとも2種の原子を示し、
YとZとは同一であっても異なっていてもよく、
Jは炭素原子を1以上有する2価の有機基を示し、m≧2の場合には、Jは同一であっても異なっていてもよい。
X-C-(C=O)-N- ・・・(C2-1)
X-C=C-C- ・・・(C2-2)
X-C-C- ・・・(C2-3)
反応組成物の製造方法は、特に限定されず公知の手法の組合せを採用できる。
反応組成物に含まれる触媒は、例えば、担体に、Pt化合物、Fe化合物、水を含む分散液を還元処理することにより、担体にPt粒子とFe酸化物粒子が担持された触媒を得てもよい。Ptの担持と、Fe酸化物の担持は、上記のように同時におこなってもよいし、どちらか一方を先に行い他方を後に行ってもよい。
本実施形態の反応システムは、本発明の反応組成物を反応物として収容可能な反応容器を含む構成を有している。
(実施例1)
触媒として、カーボン担体に、Pt粒子と、Fe酸化物粒子とが担持された触媒{商品名「NE-01M02」、Ptの含有量1.0wt%、Feの含有量0.20wt%、N.E.CHEMCAT社製(以下、必要に応じて「Pt-FeOx/C」と表記)}を用意した。
このPt-FeOx/Cは、カーボン担体が活性炭(BET測定に基づく比表面積が900:m2/g)であり、Fe酸化物粒子は主成分がFe2O3(XPS分析に基づく結果ではFe2O3が略100%)のものである。
塩基として、市販のNa2CO3を用意した。
有機溶媒として市販のトルエンを用意した。
Pt-FeOx/Cの粉体127.0mg(含水量0.141mL)と、Na2CO31.0mgと、トルエン10mL(有機溶媒)を混合し、反応組成物を得た。
Na2CO3の量を表1に示した値に変更したこと以外は、実施例1と同様の調製条件、同一の原料を使用して、実施例2~実施例5の反応組成物を調製した。
Na2CO3の代わりに塩基として、市販のK2CO3を20mg使用したこと以外は実施例1と同様の調製条件、同一の原料を使用して、実施例6の反応組成物を調製した。
Na2CO3の代わりに塩基として、市販の(CH3CH2)3Nを72.6mg使用したこと以外は実施例1と同様の調製条件、同一の原料を使用して、実施例7の反応組成物を調製した。
水の体積Vh(mL)を表1に示した値に変更したこと以外は、実施例3と同様の調製条件、同一の原料を使用して、実施例8~実施例14の触媒混合物を調製した。
塩基を使用せず、実施例1と同一のPt-FeOx/Cの粉体からなる触媒、有機溶媒を比較例1の反応組成物として準備した。
塩基を使用せず、市販のNaClを200mg使用したこと以外は比較例1と同様の調製条件、同一の原料を使用して、比較例2の反応組成物を調製した。
塩基を使用せず、市販のNa2SO4を30mg使用したこと以外は比較例1と同様の調製条件、同一の原料を使用して、比較例2の反応組成物を調製した。
実施例1で使用したPt-FeOx/Cに代えて、触媒として、カーボン担体に、Pt粒子が担持された触媒{商品名「NE-01M00」、Ptの含有量1.0wt%、N.E.CHEMCAT社製(以下、必要に応じて「Pt/C」と表記)}を用意した。
このPt/Cは、カーボン担体が活性炭(BET測定に基づく比表面積が900:m2/g)のものである。
塩基として、市販のNa2CO3を用意した。
Pt/Cの粉体127.0mg(含水量0.113mL)と、Na2CO310.0mgと、トルエン10mL(有機溶媒)を混合し、反応組成物を得た。
Na2CO3の量を表1に示した値に変更したこと以外は、比較例1と同様の調製条件、同一の原料を使用して、比較例2の反応組成物を調製した。
Pt/Cの粉体の使用量を140.0mg(含水量0.123mL)としたことと、以下の条件で水を添加したこと以外は、比較例1と同様の調製条件、同一の原料を使用して、比較例6~比較例8の反応組成物を調製した。比較例6の反応組成物に添加した水の添加量は0.444mL、比較例7及び比較例8の反応組成物に添加した水の添加量は、それぞれ1.000mLとなるように調節した。
塩基を使用せず、比較例1と同一のPt/Cの粉体からなる触媒、有機溶媒を比較例9の反応組成物として準備した。
反応物:式(C1-1)で示される2-ブロモ-5-ニトロベンゼン 2.5mmol
水素圧 :0.6MPa
反応温度:50℃
反応時間:5時間
Claims (9)
- 1以上のニトロ基と1以上のハロゲン原子とが置換基として同一の環の環骨格にそれぞれ分かれた状態で直接結合した構造を有する芳香族ニトロ化合物を反応物とし、前記1以上のニトロ基のうちの少なくとも1つをアミノ基に変換する水素化反応に用いられる触媒と、
塩基と、
前記反応物の少なくとも一部を溶解可能な有機溶媒と、
を含んでおり、
前記触媒は、担体と、前記担体上に担持されるPt粒子とFe酸化物粒子と、を含んでおり、
前記塩基は、前記水素化反応により生成物として得られる1以上のアミノ基を有する芳香族アミンのうちの少なくとも1つよりも強い塩基性を有している、
反応組成物。 - 前記芳香族ニトロ化合物が更に含まれている、
請求項1に記載の反応組成物。 - 前記芳香族ニトロ化合物の前記水素化反応により生成物として得られる少なくとも1つのアミノ基を有する芳香族アミンが更に含まれている、
請求項2に記載の反応組成物。 - 前記塩基と、前記水素化反応に使用される溶媒の構成成分が以下の式(1)の条件を満たしている、
請求項1~3のうちのいずれか1項に記載の触媒混合物。
0.90≦{1000×(B/Vs)}≦190.00・・・(1)
[式(1)中、Bは前記塩基の物質量(mol)を示し、Vsは前記有機溶媒の体積(L)を示す。] - 前記塩基と、前記水素化反応に使用される前記反応物が以下の式(2)の条件を満たしている、
請求項1~4のうちのいずれか1項に記載の触媒混合物。
0.35%≦{100×(B/R)}≦75.50%・・・(2)
[式(2)中、Bは前記塩基の物質量(mol)、Rは前記反応物の物質量(mol)を示す。] - 水が更に含まれており、その含有量が下記式(3)の条件を満たしている、
請求項1~5のうちのいずれか1項に記載の反応組成物。
0.00%≦{100×(Vh/Vs)}≦30.00%・・・(3)
[式(3)中、Vhは反応生成水以外に投入される水の体積(L)を示し、Vsは前記有機溶媒の体積(L)を示す。] - 水が下記式(4)の条件を更に満している、
請求項6項に記載の反応組成物。
1.00%≦{100×(Vh/Vs)}≦5.00%・・・(4) - 脱水剤が更に含まれている、
請求項1~5のうちのいずれか1項に記載の反応組成物。 - 請求項1~8のうちのいずれか1項に記載の反応組成物を反応物として収容可能な反応容器を含む、反応システム。
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JP2018507129A JPWO2017163680A1 (ja) | 2016-03-23 | 2017-02-15 | 反応組成物及びこれを用いた反応システム |
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US20200299239A1 (en) | 2020-09-24 |
JPWO2017163680A1 (ja) | 2019-01-31 |
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