WO2017163679A1 - 触媒混合物 - Google Patents
触媒混合物 Download PDFInfo
- Publication number
- WO2017163679A1 WO2017163679A1 PCT/JP2017/005582 JP2017005582W WO2017163679A1 WO 2017163679 A1 WO2017163679 A1 WO 2017163679A1 JP 2017005582 W JP2017005582 W JP 2017005582W WO 2017163679 A1 WO2017163679 A1 WO 2017163679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catalyst
- catalyst mixture
- base
- reaction
- hydrogenation reaction
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims abstract description 107
- 239000000203 mixture Substances 0.000 title claims abstract description 73
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 36
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims abstract description 33
- -1 aromatic nitro compound Chemical class 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 28
- 125000005843 halogen group Chemical group 0.000 claims abstract description 19
- 125000003277 amino group Chemical group 0.000 claims abstract description 11
- 239000000376 reactant Substances 0.000 claims abstract description 11
- 125000001424 substituent group Chemical group 0.000 claims abstract description 10
- 150000004982 aromatic amines Chemical class 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 9
- 239000007795 chemical reaction product Substances 0.000 claims description 8
- 239000012024 dehydrating agents Substances 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 description 36
- 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
- 229910052736 halogen Inorganic materials 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 238000005695 dehalogenation reaction Methods 0.000 description 10
- 239000011734 sodium Substances 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 125000004429 atom Chemical group 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- CUYKNJBYIJFRCU-UHFFFAOYSA-N 3-aminopyridine Chemical group NC1=CC=CN=C1 CUYKNJBYIJFRCU-UHFFFAOYSA-N 0.000 description 8
- 229910052760 oxygen Inorganic materials 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
- 239000000843 powder Substances 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
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 238000007256 debromination reaction Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 238000004519 manufacturing process 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
- 238000002156 mixing Methods 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
- 239000007787 solid Substances 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
- 239000007788 liquid Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 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
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction 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
- 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
-
- 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
-
- 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
- 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
- C07C209/38—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 nitroso groups
Definitions
- the present invention relates to a catalyst mixture. More specifically, the present invention relates to a catalyst mixture containing a catalyst 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.
- an unsaturated cyclic compound aromatic nitro compound
- 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 catalyst mixture that can selectively hydrogenate a nitro group in the hydrogenation reaction, and can sufficiently reduce elimination of a halogen atom from a ring.
- the inventors of the present invention have a configuration of a catalyst mixture in which a catalyst in which Fe oxide particles are supported on a support in addition to Pt particles and a predetermined base are mixed. As a result, the present invention has been found to be effective.
- 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 mixture comprising a catalyst used for the hydrogenation reaction of at least one of the nitro groups, A catalyst and a base, 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 catalyst mixture 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.
- the catalyst mixture of the present invention described in (N1) (N2)
- the base and the constituent components of the solvent used in the hydrogenation reaction preferably satisfy the conditions of the following formula (1). 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 effect of the present invention is more reliably achieved. Can get to.
- the catalyst mixture of the present invention described in (N1) or (N2) (N3) 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 further improved by adjusting the amount of the base contained in the catalyst mixture to 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 catalyst mixture is used. You can definitely get it.
- any one of the catalyst mixtures of the present invention (N1) to (N3) (N4) 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 more reliably ensure that the catalyst mixture of the present invention reduces the dehalogenation reaction by setting the amount of water in the reaction system in which the catalyst mixture of the present invention is used to be relatively small as described above. I found out that it works. 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.
- the water further satisfies the condition of the following formula (4). 1.00% ⁇ ⁇ 100 ⁇ (Vh / Vs) ⁇ ⁇ 5.00% (4)
- the catalyst mixture of any of (N1) to (N5) is (N6)
- a dehydrating agent may be further included.
- the hydrogen of a nitro group of an aromatic 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 catalyst mixture is provided in which the nitro group can be selectively hydrogenated and the elimination of halogen atoms from the ring can be sufficiently reduced.
- the catalyst mixture of the present embodiment includes a catalyst and a base.
- 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 catalyst contained in the catalyst mixture 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 catalyst mixture has a stronger basicity than at least one of aromatic amines having one or more amino groups obtained as a product by a hydrogenation reaction.
- Pt particles, Fe oxidation There is no particular limitation as long as it has a stability that does not cause chemical reaction with these particles at normal temperature and pressure in the state of being mixed with physical 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.
- 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 catalyst mixture may be set to an optimum value in the reaction system and reaction conditions in which the catalyst mixture is used.
- the catalyst mixture is such that the base and the constituent components of the solvent used in the hydrogenation reaction satisfy the condition of the following formula (1). It is preferable. 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 base and the reactant used in the hydrogenation reaction satisfy the condition of the following formula (2) from the viewpoint of obtaining the effects of the present invention more reliably. 0.35% ⁇ ⁇ 100 ⁇ (B / R) ⁇ ⁇ 75.50% (2)
- B represents the amount of substance (mol) of the base
- 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 obtaining the effect of the present invention more reliably. Is preferred. 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 catalyst mixture 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 of the reaction system in which the catalyst mixture is used 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 catalyst mixture 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 catalyst mixture 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 catalyst mixture is not particularly limited, and a combination of known techniques can be employed.
- the catalyst contained in the catalyst mixture may 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. .
- 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 mixing of the catalyst and the base is not particularly limited as long as they can be sufficiently mixed without causing an undesirable chemical reaction.
- the catalyst, the base, and the dehydrating agent are not particularly limited as long as they can be sufficiently mixed without causing an undesired chemical reaction.
- the order of mixing the catalyst, the base, and the dehydrating agent may be appropriately set in consideration of the respective chemical properties.
- the catalyst mixture may be a solid or a liquid. When it is solid, it may be powder.
- 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.
- 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.
- Pt—FeOx / C powder 127.0 mg (water content 0.141 mL) and Na 2 CO 3 1.0 mg were mixed to obtain a catalyst mixture.
- Example 2 Example 2 to (Example 5) Except that the amount of Na 2 CO 3 was changed to the value shown in Table 1, the same preparation conditions and the same raw materials as in Example 1 were used to prepare catalyst mixtures of Examples 2 to 5. .
- Example 6 A catalyst mixture 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 catalyst mixture 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 Only a catalyst made of the same Pt—FeOx / C powder as in Example 1 without using a base was prepared as Comparative Example 1.
- Comparative Example 2 A catalyst mixture of Comparative Example 2 was prepared using the same preparation conditions and the same raw materials as Comparative Example 1 except that 200 mg of commercially available NaCl was used without using a base.
- Comparative Example 3 A catalyst mixture of Comparative Example 2 was prepared using the same raw materials and the same preparation conditions as Comparative Example 1 except that 30 mg of commercially available Na 2 SO 4 was used without using a base.
- Comparative Example 5 A catalyst mixture of Comparative Example 2 was prepared using the same preparation conditions and the same raw materials as Comparative Example 1 except that the amount of Na 2 CO 3 was changed to the value shown in Table 1.
- 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)
- Solvent Toluene 10mL
- Hydrogen pressure 0.6 MPa
- Reaction temperature 50 ° C
- Reaction time 5 hours
- the reaction system using the catalyst mixture of Examples 1 to 14 satisfying the configuration of the present invention has a configuration similar to that of Patent Document 3 described as the prior art document (having a catalyst containing a Pt component and an iron oxide component).
- the debromination reaction to 3-aminopyridine represented by (C1-3) is sufficiently advanced It became clear that it was reduced.
- the reaction system using the catalyst mixture of Examples 1 to 14 satisfying the configuration of the present invention has a configuration similar to that of Patent Document 4 described as the prior art document (having a catalyst containing a Pt component, and a base).
- the catalyst mixture of the present example is a nitro group hydrogen atom of 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 has been clarified that the nitro group can be selectively hydrogenated and the elimination of halogen atoms from the ring can be sufficiently reduced in the reaction.
- the catalyst mixture 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 to each other as a substituent in the same ring skeleton.
- aromatic nitro compound aromatic halogen nitro compound
- the nitro group can be selectively hydrogenated and 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つの水素化反応に用いられる触媒を含む触媒混合物であって、
触媒と、塩基と、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、
触媒混合物を提供する。
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)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。]
(N3)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。]
(N4)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。]
(N5)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)
(N6)脱水剤が更に含まれていてもよい。
このように、脱水剤を予め混合することにより、本発明の触媒混合物が使用される反応系における水分量を低減でき、本発明の効果を容易に得ることができる場合がある。
本実施形態の触媒混合物は、触媒と、塩基と、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。
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)
触媒混合物の製造方法は、特に限定されず公知の手法の組合せを採用できる。
触媒混合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。
(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。
Pt-FeOx/Cの粉体127.0mg(含水量0.141mL)と、Na2CO31.0mgとを混合し、触媒混合物を得た。
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の触媒混合物を調製した。
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の触媒混合物を調製した。
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の触媒混合物を調製した。
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のみを比較例1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の触媒混合物を調製した。
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の触媒混合物を調製した。
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とを混合し、触媒混合物を得た。
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の触媒混合物を調製した。
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の触媒混合物を調製した。
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のみを比較例9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
溶媒 :トルエン 10mL
水素圧 :0.6MPa
反応温度:50℃
反応時間:5時間
Claims (6)
- 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つの水素化反応に用いられる触媒を含む触媒混合物であって、
触媒と、塩基と、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、
触媒混合物。 - 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又は2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。] - 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(3)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。
0.00%≦{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4に記載の触媒混合物。
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項に記載の触媒混合物。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17769726.5A EP3434365A4 (en) | 2016-03-23 | 2017-02-15 | CATALYST MIXTURE |
JP2018507128A JPWO2017163679A1 (ja) | 2016-03-23 | 2017-02-15 | 触媒混合物 |
US16/084,043 US20200290024A1 (en) | 2016-03-23 | 2017-02-15 | Catalyst mixture |
CN201780019134.XA CN109070062A (zh) | 2016-03-23 | 2017-02-15 | 催化剂混合物 |
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EP (1) | EP3434365A4 (ja) |
JP (1) | JPWO2017163679A1 (ja) |
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JPH0245452A (ja) * | 1988-06-22 | 1990-02-15 | Hoechst Ag | 4‐クロロ‐2,5‐ジメトキシアニリンの製造方法 |
JPH035442A (ja) * | 1989-05-15 | 1991-01-11 | E I Du Pont De Nemours & Co | ハロゲン化芳香族アミンの製造方法 |
JPH1076161A (ja) * | 1996-07-23 | 1998-03-24 | Degussa Ag | 多金属触媒及び置換芳香族アミンの製法 |
JP2000302738A (ja) * | 1999-04-16 | 2000-10-31 | Wakayama Seika Kogyo Kk | 2−トリフルオロメチル−4,4’−ジアミノジフェニルエーテルおよびその製造方法 |
JP2008516882A (ja) * | 2004-10-21 | 2008-05-22 | 北京大学 | 遷移金属−磁性酸化鉄ナノ複合材料、その製造方法及び応用 |
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ES2285934B1 (es) * | 2006-04-10 | 2008-12-16 | Universidad Politecnica De Valencia | Procedimiento para preparar compuestos amino utilizando catalizadores de oro. |
CN101333169A (zh) * | 2007-03-01 | 2008-12-31 | 淮安嘉诚高新化工股份有限公司 | 一种邻氯苯胺的生产方法 |
CN101648135A (zh) * | 2008-08-14 | 2010-02-17 | 赢创德固赛有限责任公司 | 一种用于将芳香族卤代硝基化合物选择性氢化为芳香族卤化胺的催化剂及其制备方法 |
CN101767018B (zh) * | 2009-01-06 | 2012-06-13 | 北京大学 | 负载型Pd基金属纳米簇催化剂及其制备方法与应用 |
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2017
- 2017-02-15 WO PCT/JP2017/005582 patent/WO2017163679A1/ja active Application Filing
- 2017-02-15 EP EP17769726.5A patent/EP3434365A4/en not_active Withdrawn
- 2017-02-15 US US16/084,043 patent/US20200290024A1/en not_active Abandoned
- 2017-02-15 CN CN201780019134.XA patent/CN109070062A/zh active Pending
- 2017-02-15 JP JP2018507128A patent/JPWO2017163679A1/ja active Pending
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JPS4886830A (ja) * | 1972-02-28 | 1973-11-15 | ||
JPS5515690A (en) * | 1978-07-11 | 1980-02-02 | Du Pont | Catalyst hydride that have improved metal distribution and its preparation and its use |
JPH0245452A (ja) * | 1988-06-22 | 1990-02-15 | Hoechst Ag | 4‐クロロ‐2,5‐ジメトキシアニリンの製造方法 |
JPH035442A (ja) * | 1989-05-15 | 1991-01-11 | E I Du Pont De Nemours & Co | ハロゲン化芳香族アミンの製造方法 |
JPH1076161A (ja) * | 1996-07-23 | 1998-03-24 | Degussa Ag | 多金属触媒及び置換芳香族アミンの製法 |
JP2000302738A (ja) * | 1999-04-16 | 2000-10-31 | Wakayama Seika Kogyo Kk | 2−トリフルオロメチル−4,4’−ジアミノジフェニルエーテルおよびその製造方法 |
JP2008516882A (ja) * | 2004-10-21 | 2008-05-22 | 北京大学 | 遷移金属−磁性酸化鉄ナノ複合材料、その製造方法及び応用 |
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Publication number | Publication date |
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CN109070062A (zh) | 2018-12-21 |
EP3434365A1 (en) | 2019-01-30 |
JPWO2017163679A1 (ja) | 2019-01-31 |
US20200290024A1 (en) | 2020-09-17 |
EP3434365A4 (en) | 2019-10-30 |
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