JPWO2017126197A1 - 2−アミノニコチン酸ベンジルエステル誘導体の製造方法 - Google Patents
2−アミノニコチン酸ベンジルエステル誘導体の製造方法 Download PDFInfo
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- JPWO2017126197A1 JPWO2017126197A1 JP2017562446A JP2017562446A JPWO2017126197A1 JP WO2017126197 A1 JPWO2017126197 A1 JP WO2017126197A1 JP 2017562446 A JP2017562446 A JP 2017562446A JP 2017562446 A JP2017562446 A JP 2017562446A JP WO2017126197 A1 JPWO2017126197 A1 JP WO2017126197A1
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- nicotinic acid
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- GOEISWUHBXJHOA-UHFFFAOYSA-N benzyl 2-aminopyridine-3-carboxylate Chemical class NC1=NC=CC=C1C(=O)OCC1=CC=CC=C1 GOEISWUHBXJHOA-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 12
- 125000005843 halogen group Chemical group 0.000 claims abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 8
- KPIVDNYJNOPGBE-UHFFFAOYSA-N 2-aminonicotinic acid Chemical class NC1=NC=CC=C1C(O)=O KPIVDNYJNOPGBE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003444 phase transfer catalyst Substances 0.000 claims abstract description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 6
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 5
- 150000003512 tertiary amines Chemical class 0.000 claims abstract description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 125000004430 oxygen atom Chemical group O* 0.000 claims abstract 3
- 125000004429 atom Chemical group 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000002140 halogenating effect Effects 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 claims description 5
- 239000002585 base Substances 0.000 claims description 5
- -1 benzyl halide Chemical class 0.000 claims description 5
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 claims description 4
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 4
- 125000005699 methyleneoxy group Chemical group [H]C([H])([*:1])O[*:2] 0.000 claims description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 3
- 150000003335 secondary amines Chemical class 0.000 claims description 2
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical class OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 150000002367 halogens Chemical class 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229940125782 compound 2 Drugs 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 239000005457 ice water Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 4
- 0 *c(c(N)n1)ccc1I Chemical compound *c(c(N)n1)ccc1I 0.000 description 3
- IATNZRYVIRYKDJ-UHFFFAOYSA-N 1-(chloromethyl)-4-phenoxybenzene Chemical compound C1=CC(CCl)=CC=C1OC1=CC=CC=C1 IATNZRYVIRYKDJ-UHFFFAOYSA-N 0.000 description 3
- KQCYBQNBTWJYQN-UHFFFAOYSA-N NC1=C(C(=O)O)C=CC(=N1)C.O(C1=CC=CC=C1)C1=CC=C(C[K])C=C1.NC1=C(C(=O)O)C=CC(=N1)C Chemical compound NC1=C(C(=O)O)C=CC(=N1)C.O(C1=CC=CC=C1)C1=CC=C(C[K])C=C1.NC1=C(C(=O)O)C=CC(=N1)C KQCYBQNBTWJYQN-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 150000002431 hydrogen Chemical group 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- FEOMFFKZOZMBKD-UHFFFAOYSA-N (4-phenoxyphenyl)methanol Chemical compound C1=CC(CO)=CC=C1OC1=CC=CC=C1 FEOMFFKZOZMBKD-UHFFFAOYSA-N 0.000 description 2
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 description 2
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000417 fungicide Substances 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 239000002798 polar solvent Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VFTFKUDGYRBSAL-UHFFFAOYSA-N 15-crown-5 Chemical compound C1COCCOCCOCCOCCO1 VFTFKUDGYRBSAL-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- XQBYYQRWYONQLM-UHFFFAOYSA-N 2-amino-6-methylpyridine-3-carboxylic acid Chemical compound CC1=CC=C(C(O)=O)C(N)=N1 XQBYYQRWYONQLM-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical class OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 1
- YZLYJICAPXZYJF-UHFFFAOYSA-N O(C1=CC=CC=C1)C1=CC=C(CC=2C(=NC(=C(C(=O)O)C2)N)C)C=C1.NC1=C(C(=O)O)C=CC(=N1)C Chemical compound O(C1=CC=CC=C1)C1=CC=C(CC=2C(=NC(=C(C(=O)O)C2)N)C)C=C1.NC1=C(C(=O)O)C=CC(=N1)C YZLYJICAPXZYJF-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- CHQVQXZFZHACQQ-UHFFFAOYSA-M benzyl(triethyl)azanium;bromide Chemical compound [Br-].CC[N+](CC)(CC)CC1=CC=CC=C1 CHQVQXZFZHACQQ-UHFFFAOYSA-M 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 125000002510 isobutoxy group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])O* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- VMOWKUTXPNPTEN-UHFFFAOYSA-N n,n-dimethylpropan-2-amine Chemical compound CC(C)N(C)C VMOWKUTXPNPTEN-UHFFFAOYSA-N 0.000 description 1
- 125000006606 n-butoxy group Chemical group 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000005920 sec-butoxy group Chemical group 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 125000004213 tert-butoxy group Chemical group [H]C([H])([H])C(O*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- DPKBAXPHAYBPRL-UHFFFAOYSA-M tetrabutylazanium;iodide Chemical compound [I-].CCCC[N+](CCCC)(CCCC)CCCC DPKBAXPHAYBPRL-UHFFFAOYSA-M 0.000 description 1
- HFRXJVQOXRXOPP-UHFFFAOYSA-N thionyl bromide Chemical compound BrS(Br)=O HFRXJVQOXRXOPP-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/80—Acids; Esters in position 3
-
- 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
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B61/00—Other general methods
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
で表されるベンジル誘導体を、
a)上記式[I]において、Mが水素の場合は塩基を用いて
b)上記式[II]において、Xが水酸基の場合はハロゲン化剤を用いて
反応させた後、相関移動触媒または三級アミン存在下、芳香族炭化水素溶媒中で反応させて、下式[III]:
上記式[I]、[II]および[III]において、R1およびR2で示されるC1〜C4のアルキル基としては、例えば、メチル基や、エチル基、n-プロピル基、イソプロピル基、n-ブチル基、イソブチル基、sec-ブチル基、tert-ブチル基などが挙げられ、R2およびXで示されるハロゲン原子としては、例えば、フッ素原子や、塩素原子、臭素原子、ヨウ素原子が挙げられ、R2で示されるC1〜C4のアルコキシ基としては、例えば、メトキシ基や、エトキシ基、n-プロポキシ基、イソプロポキシ基、n-ブトキシ基、イソブトキシ基、sec-ブトキシ基、tert-ブトキシ基が挙げられ、Mで示されるアルカリ金属としては、例えば、ナトリウムまたはカリウムが挙げられる。
本発明の製造方法において使用される上記式[II]のXが水酸基で表されるアルコール誘導体は、例えば、Journal of Medicinal Chemistry, 43巻, 1826頁(2000)に記載された方法に準じて、公知化合物から直ちに合成することができる。
本発明の製造方法において製造される上記式[III]の化合物は、農業用殺菌剤として有用である。
2−アミノ−6−メチルニコチン酸−4−フェノキシベンジルの合成
2−アミノ−6−メチルニコチン酸カリウム(0.95g)をトルエン(5mL)に懸濁し、(1−クロロメチル)−4−フェノキシベンゼン(1.10g)と18−クラウン−6エーテル(40mg)を加えて、105℃で6時間加熱撹拌した。反応液を室温まで冷却し、減圧下でトルエンを約80%留去した。残渣に氷水を加えて室温で20分間撹拌した。析出した結晶をろ取、乾燥して、目的物(表1記載の化合物2)1.52g(収率91.6%,容積効率33.4%)を得た。
1H-NMR (CDCl3) δppm: 2.38 (3H,s), 5.25 (2H,s), 6.06-6.72 (2H.br), 6.44 (1H,d), 6.99-7.04 (4H,m), 7.12 (1H,t), 7.31-7.41 (4H,m), 8.04 (1H,d)
2−アミノ−6−メチルニコチン酸−4−フェノキシベンジルの合成
2−アミノ−6−メチルニコチン酸カリウム(0.95g)をm−キシレン(5mL)に懸濁し、(1−クロロメチル)−4−フェノキシベンゼン(1.10g)とテトラメチルエチレンジアミン(19mg)を加えて、110℃で6時間加熱撹拌した。反応液を室温まで冷却し、減圧下でm-キシレンを約80%留去した。残渣に氷水を加えて室温で20分間撹拌した。析出した結晶をろ取、乾燥して、目的物(表1記載の化合物2)1.41g(収率84.4%,容積効率33.4%)を得た。
2−アミノ−6−メチルニコチン酸−4−フェノキシベンジルの合成
2−アミノ−6−メチルニコチン酸カリウム(0.95g)をm−キシレン(5mL)に懸濁し、(1−クロロメチル)−4−フェノキシベンゼン(1.10g)とテトラブチルアンモニウムブロミド(49mg)を加えて、110℃で6時間加熱撹拌した。反応液を室温まで冷却し、減圧下でm-キシレンを約90%留去した。残渣に氷水を加えて室温で20分間撹拌した。析出した結晶をろ取、乾燥して、目的物(表1記載の化合物2)1.55g(収率92.8%,容積効率33.4%)を得た。
2−アミノ−6−メチルニコチン酸−4−フェノキシベンジルの合成
2−アミノ−6−メチルニコチン酸(2.28g)をm−キシレン(15mL)に懸濁し、水酸化ナトリウム(1.20g)を加えて、40℃で30分間撹拌し、溶液1とした。一方、(4−フェノキシフェニル)メタノール(3.00g)をm−キシレン(5mL)に溶解し、氷冷下で塩化チオニル(1.1mL)を滴下し、室温に戻しながら30分間撹拌した。その反応液を溶液1に加え、テトラブチルアンモニウムブロミド(145mg)を加えて、110℃で6時間加熱撹拌した。反応液を室温まで冷却し、減圧下でm-キシレンを約90%留去した。残渣に氷水を加えて室温で30分間撹拌した。析出した結晶をろ取、乾燥して、目的物(表1記載の化合物2)4.17g(収率83.2%,容積効率20%)を得た。
2−アミノ−6−メチルニコチン酸−4−フェノキシベンジルの合成
2−アミノ−6−メチルニコチン酸(3.04g)をm−キシレン(20mL)に懸濁し、炭酸カリウム(4.15g)を加えて、40℃で30分間撹拌し、溶液1とした。一方、(4−フェノキシフェニル)メタノール(4.00g)をm−キシレン(7mL)に溶解し、氷冷下で塩化チオニル(1.46mL)を滴下し、室温に戻しながら30分間撹拌した。その後,系内の塩化水素,二酸化硫黄および塩化チオニルを留去し,溶液1に加え、テトラブチルアンモニウムブロミド(194mg)を加えて、110℃で4時間加熱撹拌した。反応液を室温まで冷却し、減圧下でm-キシレンを約95%留去した。残渣に氷水を加えて室温で30分間撹拌した。析出した結晶をろ取、乾燥して、目的物(表1記載の化合物2)6.39g(収率95.7%,容積効率25%)を得た。
Claims (3)
- 下式[I]:
で表されるベンジル誘導体を、
a)上記式[I]において、Mが水素の場合は塩基を用いて
b)上記式[II]において、Xが水酸基の場合はハロゲン化剤を用いて
反応させた後、相関移動触媒または三級アミン存在下、芳香族炭化水素溶媒中で反応させて、下式[III]:
- 下式[I]:
)で表される2−アミノニコチン酸無機塩誘導体、および、下式[II]:
- 下式[VI]:
で表される2−アミノニコチン酸誘導体、および、下式[VII]:
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