JP2023137617A - Benzyl amine derivative which is solid base useful for neutralization of benzidine waste acid alcohol, and method for producing the same - Google Patents
Benzyl amine derivative which is solid base useful for neutralization of benzidine waste acid alcohol, and method for producing the same Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title abstract description 32
- 239000002253 acid Substances 0.000 title abstract description 21
- 239000002699 waste material Substances 0.000 title abstract description 18
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 title abstract description 14
- 238000006386 neutralization reaction Methods 0.000 title abstract description 11
- 239000007787 solid Substances 0.000 title abstract description 11
- 150000003939 benzylamines Chemical class 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 94
- 229920000642 polymer Polymers 0.000 claims abstract description 63
- 125000004432 carbon atom Chemical group C* 0.000 claims description 24
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 20
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 19
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 125000005843 halogen group Chemical group 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 10
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 4
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 2
- 229920005565 cyclic polymer Polymers 0.000 claims 1
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- -1 triethylamine Chemical class 0.000 description 24
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical group NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 22
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- 238000006722 reduction reaction Methods 0.000 description 15
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 14
- 238000001914 filtration Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000843 powder Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000002244 precipitate Substances 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 230000003472 neutralizing effect Effects 0.000 description 8
- 238000010992 reflux Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 7
- 239000012280 lithium aluminium hydride Substances 0.000 description 7
- AEKVBBNGWBBYLL-UHFFFAOYSA-N 4-fluorobenzonitrile Chemical compound FC1=CC=C(C#N)C=C1 AEKVBBNGWBBYLL-UHFFFAOYSA-N 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 6
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 5
- 150000001298 alcohols Chemical class 0.000 description 5
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- GQPLZGRPYWLBPW-UHFFFAOYSA-N calix[4]arene Chemical compound C1C(C=2)=CC=CC=2CC(C=2)=CC=CC=2CC(C=2)=CC=CC=2CC2=CC=CC1=C2 GQPLZGRPYWLBPW-UHFFFAOYSA-N 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 3
- 238000006462 rearrangement reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 125000004104 aryloxy group Chemical group 0.000 description 2
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920003986 novolac Polymers 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 229940093475 2-ethoxyethanol Drugs 0.000 description 1
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- DZGCGKFAPXFTNM-UHFFFAOYSA-N ethanol;hydron;chloride Chemical compound Cl.CCO DZGCGKFAPXFTNM-UHFFFAOYSA-N 0.000 description 1
- 239000004210 ether based solvent Substances 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
- 239000011737 fluorine Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 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
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
本発明は、ベンジジン廃酸アルコールの中和に有用な固体塩基であるベンジルアミン誘導体、及びその製造方法に関する。 The present invention relates to benzylamine derivatives that are useful solid bases for neutralizing benzidine waste acid alcohols, and to methods for producing the same.
ヒドラゾベンゼン類を酸性条件下、転位させ、有用なベンジジン誘導体を合成するベンジジン転位反応(非特許文献1、2)は遷移金属触媒が不要で、産業界において重要である。 The benzidine rearrangement reaction (Non-Patent Documents 1 and 2), in which hydrazobenzenes are rearranged under acidic conditions to synthesize useful benzidine derivatives, does not require a transition metal catalyst and is important in industry.
反応液からベンジジン誘導体を単離した後に生じる廃酸アルコールをリサイクル使用するには、廃酸を中和し、アルコールを蒸留回収する。この際、無機アルカリで酸を中和すると、化学量論量の水が副生する。たとえば、HCl+NaOH→NaCl+H2Oとなる。エタノールなどのアルコールは多くの場合、水と共沸するので、アルコールのみを蒸留回収するのは極めて困難である。たとえば、エタノールは760mmHgにて水と78.17℃にて共沸し、蒸留回収したエタノールには4.0wt%の水が含まれてしまう(非特許文献3)。 To recycle the waste acid alcohol produced after isolating the benzidine derivative from the reaction solution, the waste acid is neutralized and the alcohol is recovered by distillation. At this time, when the acid is neutralized with an inorganic alkali, a stoichiometric amount of water is produced as a by-product. For example, HCl+NaOH→NaCl+H 2 O. Since alcohols such as ethanol are often azeotropic with water, it is extremely difficult to recover only the alcohol by distillation. For example, ethanol azeotropes with water at 78.17° C. at 760 mmHg, and the ethanol recovered by distillation contains 4.0 wt% water (Non-Patent Document 3).
一方、廃酸アルコールをトリエチルアミンなどの有機塩基で中和すると、生成する有機塩は多くの場合、アルコールに溶解して濾別が困難である。また、トリエチルアミンなどの有機塩基はエタノールなどのアルコールと沸点が近く、蒸留にて分離することも困難である。 On the other hand, when waste acid alcohol is neutralized with an organic base such as triethylamine, the generated organic salt is often dissolved in the alcohol and difficult to filter out. Furthermore, organic bases such as triethylamine have close boiling points to alcohols such as ethanol, and are difficult to separate by distillation.
このような理由から、ベンジジン誘導体の製造にて廃酸アルコールを回収リサイクルするのは極めて困難で、廃酸アルコールを廃棄処分するのは、産業上においても環境面でも問題である。 For these reasons, it is extremely difficult to collect and recycle waste acid alcohol in the production of benzidine derivatives, and disposal of waste acid alcohol is a problem from both an industrial and environmental perspective.
そこで、ベンジジン廃酸アルコールの中和に有用で、中和後には濾別が容易な固体塩基、およびその製造方法を提供することを目的とする。 Therefore, an object of the present invention is to provide a solid base that is useful for neutralizing benzidine waste acid alcohol and that can be easily separated by filtration after neutralization, and a method for producing the same.
本発明者らは、上記のようなベンジジン廃酸アルコールの中和の問題点を鋭意検討した結果、ベンジルアミン構造を有する新規のポリマー化合物(以下、高分子状ベンジルアミン誘導体という)を合成し、当該ポリマー化合物がベンジジン廃酸アルコールの中和に有用であること、及び、中和後には濾別が容易な固体塩基であることを見出し、本発明を成すに至った。 As a result of intensive investigation into the problems of neutralization of benzidine waste acid alcohol as described above, the present inventors synthesized a new polymer compound having a benzylamine structure (hereinafter referred to as a polymeric benzylamine derivative). The inventors have discovered that the polymer compound is useful for neutralizing benzidine waste acid alcohol, and that it is a solid base that can be easily filtered out after neutralization, leading to the present invention.
すなわち、本発明は下記式(a)で表される構造単位を有するポリマー化合物及びその製造方法を提供する。
さらに本発明は、下記式(b)で表される構造単位又は(c)で表される構造を有する、直鎖又は環状化合物及びその製造方法を提供する。
本発明の高分子状のベンジルアミン誘導体は、ベンジジン廃酸アルコールを中和しても固体として濾別が容易で、アルコールの回収リサイクルに好適に使用できる。 The polymeric benzylamine derivative of the present invention can be easily filtered as a solid even after neutralizing benzidine waste acid alcohol, and can be suitably used for recovery and recycling of alcohol.
本発明のポリマー化合物は下記式(a)、(b)または(c)で表される構造を有する。
R1、R2、R3、R4、及びR5で表される、炭素原子数1~6の、置換されていてもよいアルキル基としては、例えば、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、ペンチル、ネオペンチル、シクロペンチル、ヘキシル、シクロヘキシル基が挙げられる。炭素原子数1~3のアルコキシ基としては、メトキシ、エトキシ、プロポキシ基が挙げられる。ハロゲン原子としてはヨウ素、臭素、塩素、フッ素が挙げられる。R1、R2、R3、R4、及びR5は、互いに異なっていても、同一であってもよい。好ましくは水素原子または炭素原子数1~6のアルキル基である。より好ましくは、式(a)においてはR1、R2、R3、R4、及びR5が全て水素原子であるのがよい。式(b)及び(c)においてはR1、R2及びR3の少なくとも1が炭素数1~6のアルキル基であり、R4及びR5が水素原子であるのがよい。 Examples of the optionally substituted alkyl group having 1 to 6 carbon atoms represented by R 1 , R 2 , R 3 , R 4 , and R 5 include methyl, ethyl, propyl, isopropyl, butyl. , isobutyl, pentyl, neopentyl, cyclopentyl, hexyl, and cyclohexyl groups. Examples of the alkoxy group having 1 to 3 carbon atoms include methoxy, ethoxy, and propoxy groups. Examples of halogen atoms include iodine, bromine, chlorine, and fluorine. R 1 , R 2 , R 3 , R 4 and R 5 may be different from each other or may be the same. Preferred is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. More preferably, in formula (a), R 1 , R 2 , R 3 , R 4 , and R 5 are all hydrogen atoms. In formulas (b) and (c), at least one of R 1 , R 2 and R 3 is preferably an alkyl group having 1 to 6 carbon atoms, and R 4 and R 5 are preferably hydrogen atoms.
m、m1及びm2は2以上の整数であり、好ましくは、m及びm1は2以上~1000以下であり、より好ましくは2以上~500以下である。m2は2~8であり、好ましくは4~6である。m+kは2~1000であり、好ましくは3~500である。m1+k1は2~1000であり、好ましくは3~500である。m2+k2は4~8であり、好ましくは4~6である。k、k1及k2は0以上の整数であり、より好ましくは。k及びk1は100以下であり、さらに好ましくは50以下であり、最も好ましくは0である。k2は4以下であり、好ましくは3以下であり、最も好ましくは0である。nは1~5であり、好ましくは1~3であり、さらに好ましくは1である。Aの結合位置は、オルト位、メタ位、パラ位のいずれでもよい。最も好ましくは、nが1であり、Aを酸素原子に対してパラ位に有する化合物である。 m, m 1 and m 2 are integers of 2 or more, preferably m and m 1 are 2 or more and 1000 or less, more preferably 2 or more and 500 or less. m 2 is 2-8, preferably 4-6. m+k is 2 to 1000, preferably 3 to 500. m 1 +k 1 is from 2 to 1000, preferably from 3 to 500. m 2 +k 2 is from 4 to 8, preferably from 4 to 6. k, k1 and k2 are integers of 0 or more, more preferably. k and k 1 are 100 or less, more preferably 50 or less, and most preferably 0. k2 is 4 or less, preferably 3 or less, and most preferably 0. n is 1 to 5, preferably 1 to 3, and more preferably 1. The bonding position of A may be any of the ortho position, meta position, and para position. Most preferred is a compound in which n is 1 and A is in the para position with respect to the oxygen atom.
上記式(a)で表される化合物は、好ましくは重量平均分子量450~225000を有し、より好ましくは4500~112500を有する。上記式(b)で表される化合物は、好ましくは重量平均分子量420~211000を有し、より好ましくは4220~105500を有する。上記式(c)で表される化合物は、好ましくは重量平均分子量840~1690を有し、より好ましくは840~1270を有する。重量平均分子量は、GPCにより測定することができる。
上記括弧内に示される2種の繰り返し単位の結合順序は互いにランダムであってよい。上記式(a)において2種の繰り返し単位は下記に示すアリールオキシ基を有する単位とヒドロキシ基を有する単位を意味する。
上記式(b)、(c)において2種の繰り返し単位は下記に示すアリールオキシ基を有する単位とヒドロキシ基を有する単位を意味する。
上記各単位の*は他の単位の**と結合している。直鎖状のポリマー化合物において上記(a)又は(b)で示される構造単位からなるポリマーの末端構造は特に制限されない。ポリマーの末端基は、従来のポリスチレン系ポリマーの末端基に従えばよい。例えば、メチル基、ビニル基、又は重合反応停止剤由来の置換基等が挙げられる。
The compound represented by the above formula (a) preferably has a weight average molecular weight of 450 to 225,000, more preferably 4,500 to 112,500. The compound represented by the above formula (b) preferably has a weight average molecular weight of 420 to 211,000, more preferably 4220 to 105,500. The compound represented by the above formula (c) preferably has a weight average molecular weight of 840 to 1,690, more preferably 840 to 1,270. Weight average molecular weight can be measured by GPC.
The bonding order of the two types of repeating units shown in the above parentheses may be mutually random. In the above formula (a), the two types of repeating units mean a unit having an aryloxy group and a unit having a hydroxy group shown below.
In the above formulas (b) and (c), the two types of repeating units mean a unit having an aryloxy group and a unit having a hydroxy group as shown below.
* in each unit above is combined with ** in other units. In the linear polymer compound, the terminal structure of the polymer consisting of the structural units shown in (a) or (b) above is not particularly limited. The terminal groups of the polymer may follow those of conventional polystyrene polymers. Examples include a methyl group, a vinyl group, a substituent derived from a polymerization reaction terminator, and the like.
上記式(a)、(b)及び(c)においてAが-CH2NH2である化合物は、下記式(1)、(2)又は(5)で表されるベンジルアミン構造を有するポリマー化合物である。
上記ポリマー化合物は好ましくは下記式で表される。
上記式(a)、(b)及び(c)においてAが-CNである化合物は下記式(3)、(4)又は(6)で表される、ベンゾニトリル含有ポリマー化合物である。
当該ベンゾニトリル含有ポリマー化合物は上記式(1)、(2)又は(5)で表される化合物の前駆体となる。
The compound in which A is -CN in the above formulas (a), (b) and (c) is a benzonitrile-containing polymer compound represented by the following formula (3), (4) or (6).
The benzonitrile-containing polymer compound becomes a precursor of the compound represented by the above formula (1), (2) or (5).
ベンゾニトリル含有ポリマー化合物は好ましくは下記式で表される。
(nは1~5であり、好ましくは1である。-CNの結合箇所は制限されないが、最も好ましくはnが1であり、-CNを酸素原子に対してパラ位に有する化合物である。R4及びR5は、好ましくは水素原子または炭素原子数1~6のアルキル基であり、最も好ましくはR4及びR5が全て水素原子である。R1は水素原子または炭素原子数1~6のアルキル基であり、好ましくは炭素原子数1~6のアルキル基であり、炭素原子数1~4のアルキル基である。m、m1及びm2、k、k1及びk2、*及び**は上記の通りである)
The benzonitrile-containing polymer compound is preferably represented by the following formula.
(n is 1 to 5, preferably 1. The bonding site of -CN is not limited, but most preferably n is 1, and the compound has -CN at the para position with respect to the oxygen atom. R 4 and R 5 are preferably a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and most preferably R 4 and R 5 are all hydrogen atoms. R 1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. 6 alkyl group, preferably an alkyl group having 1 to 6 carbon atoms, and preferably an alkyl group having 1 to 4 carbon atoms. m, m 1 and m 2 , k, k 1 and k 2 , * and ** are as above)
本発明の化合物は、特に好ましくは、下記式で表される。
(m1は2~1000であり、R1は炭素原子数1~4のアルキル基である)
(m2は4~6であり、R1は炭素原子数1~4のアルキル基である)
The compound of the present invention is particularly preferably represented by the following formula.
(m1 is 2 to 1000, and R 1 is an alkyl group having 1 to 4 carbon atoms)
(m2 is 4 to 6, and R 1 is an alkyl group having 1 to 4 carbon atoms)
上記式(1)、(2)又は(5)で表されるポリマー化合物は、上記式(3)、(4)または(6)で表されるポリマー化合物のシアノ基を還元することにより、容易に得ることができる。 The polymer compound represented by the above formula (1), (2) or (5) can be easily obtained by reducing the cyano group of the polymer compound represented by the above formula (3), (4) or (6). can be obtained.
すなわち本発明は、下記式(1)で表されるポリマー化合物の製造方法であって
下記式(3)
で表されるポリマー化合物のシアノ基を還元して上記式(1)で表されるポリマー化合物を得る工程を含む、前記製造方法を提供する。
That is, the present invention is a method for producing a polymer compound represented by the following formula (1),
The following formula (3)
The above-mentioned manufacturing method includes the step of reducing the cyano group of the polymer compound represented by the above formula (1) to obtain the polymer compound represented by the above formula (1).
また本発明は、下記式(2)で表されるポリマー化合物の製造方法であって
下記式(4)
で表されるポリマー化合物のシアノ基を還元して上記式(2)で表されるポリマー化合物を得る工程を含む、前記製造方法を提供する。
The present invention also provides a method for producing a polymer compound represented by the following formula (2),
The following formula (4)
Provided is the manufacturing method described above, which includes the step of reducing the cyano group of the polymer compound represented by the formula (2) to obtain the polymer compound represented by the above formula (2).
さらに本発明は、下記式(5)で表されるポリマー化合物の製造方法であって
下記式(6)
で表されるポリマー化合物のシアノ基を還元して上記式(5)で表されるポリマー化合物を得る工程を含む、前記製造方法を提供する。
Furthermore, the present invention provides a method for producing a polymer compound represented by the following formula (5),
The following formula (6)
The manufacturing method includes the step of reducing the cyano group of the polymer compound represented by the above formula (5) to obtain the polymer compound represented by the above formula (5).
上記式(3)で表されるポリマー化合物は、下記式(7)
上記式(4)で表されるポリマー化合物は、下記式(9)
上記式(5)で表されるポリマー化合物は、下記式(10)
で表されるポリマー化合物と、下記式(8)
A polymer compound represented by and the following formula (8)
式(8)中、Xはハロゲン原子であり、例えば塩素原子またはフッ素原子であり、好ましくはフッ素原子である。nは1~5であり、好ましくは1~3であり、さらに好ましくは1である。-CNの結合箇所は制限されないが、最も好ましくはnが1であり、-CNをXに対してパラ位に有する化合物である。式(8)の化合物としては、例えば、4-フルオロベンゾニトリル、又は4-クロロベンゾニトリル等があげられる。 In formula (8), X is a halogen atom, for example a chlorine atom or a fluorine atom, preferably a fluorine atom. n is 1 to 5, preferably 1 to 3, and more preferably 1. The bonding site of --CN is not limited, but most preferably n is 1 and the compound has --CN at the para position with respect to X. Examples of the compound of formula (8) include 4-fluorobenzonitrile and 4-chlorobenzonitrile.
以下、製造方法について、より詳細に説明する。 The manufacturing method will be explained in more detail below.
上記シアノ基の還元反応は、特に限定されるものではなく、シアノ基をアミノメチル基に還元する公知の方法を用いることが出来る。例えば、芳香族シアノ化合物の還元方法としては、接触還元、水素化アルミニウムリチウム還元、水素化ホウ素ナトリウム還元、ベシャン還元、亜鉛末還元、塩化スズ還元、及びヒドラジン還元等が挙げられる。 The reduction reaction of the cyano group is not particularly limited, and a known method for reducing a cyano group to an aminomethyl group can be used. For example, methods for reducing aromatic cyano compounds include catalytic reduction, lithium aluminum hydride reduction, sodium borohydride reduction, Bechamp reduction, zinc dust reduction, tin chloride reduction, and hydrazine reduction.
還元反応に用いられる溶剤は例えば、メタノール、エタノール、1-プロパノール、イソプロパノール、1-ブタノール、2-メトキシエタノール、及び2-エトキシエタノールなどのアルコール系溶剤、N,N-ジメチルホルムアミド、N,N-ジメチルアセトアミド、N-メチルピロリドン、N,N’-ジメチルイミダゾリジノンなどのアミド系溶剤、及び、テトラヒドロフラン、ジオキサン、エチレングリコールジメチルエーテル、及びジエチレングリコールなどのエーテル系溶剤が挙げられるが、芳香族シアノ化合物が溶解する溶媒であれば、これらに限定されることはない。溶剤の量は適宜調整されればよい。 Solvents used in the reduction reaction include, for example, alcoholic solvents such as methanol, ethanol, 1-propanol, isopropanol, 1-butanol, 2-methoxyethanol, and 2-ethoxyethanol, N,N-dimethylformamide, N,N- Examples include amide solvents such as dimethylacetamide, N-methylpyrrolidone, and N,N'-dimethylimidazolidinone, and ether solvents such as tetrahydrofuran, dioxane, ethylene glycol dimethyl ether, and diethylene glycol, but aromatic cyano compounds The solvent is not limited to these as long as it dissolves in the solvent. The amount of solvent may be adjusted as appropriate.
還元反応に使用される触媒は上記各還元反応の触媒として公知の触媒を使用すればよい。例えば、接触還元またはヒドラジン還元に用いられる触媒としては、活性炭、カーボンブラック、グラファイト、アルミナなどに担持させたパラジウム、白金、ロジウムなどの貴金属触媒、ラネーニッケル触媒、及びスポンジニッケル触媒が挙げられる。触媒の量は特に制限されるものでないが、芳香族シアノ化合物に対して、通常0.1~10wt%である。 As the catalyst used for the reduction reaction, any known catalyst for each of the above-mentioned reduction reactions may be used. For example, catalysts used for catalytic reduction or hydrazine reduction include noble metal catalysts such as palladium, platinum, and rhodium supported on activated carbon, carbon black, graphite, alumina, etc., Raney nickel catalysts, and sponge nickel catalysts. The amount of catalyst is not particularly limited, but is usually 0.1 to 10 wt% based on the aromatic cyano compound.
還元反応の反応温度及び時間は適宜選択されればよい。例えば、0~150℃の範囲にある温度、好ましくは10~100℃の範囲にある温度で、1~24時間、好ましくは1~10時間反応させればよい。反応生成物の処理方法は特に制限されるものではない。例えば、触媒を除去し、冷却した後、生成した固体を濾過、水洗、乾燥することにより、上記一般式(1)、(2)または(5)で示される化合物を得ることができる。 The reaction temperature and time of the reduction reaction may be selected as appropriate. For example, the reaction may be carried out at a temperature in the range of 0 to 150°C, preferably in the range of 10 to 100°C, for 1 to 24 hours, preferably 1 to 10 hours. The method for treating the reaction product is not particularly limited. For example, the compound represented by the above general formula (1), (2) or (5) can be obtained by removing the catalyst and cooling, and then filtering, washing with water, and drying the produced solid.
上記一般式(3)、(4)又は(6)で表されるシアノ化合物の製造方法は、何ら制限されるものではなく、いかなる方法で製造してもよい。好ましくは、上記一般式(7)、(9)または(10)で示される化合物と上記一般式(8)で示される化合物とを、有機溶媒中、好ましくは塩基の存在下にて、加温下で脱水縮合反応させることにより、上記一般式(3)、(4)又は(6)で表されるシアノ化合物が得られる。 The method for producing the cyano compound represented by the above general formula (3), (4) or (6) is not limited at all and may be produced by any method. Preferably, the compound represented by the above general formula (7), (9) or (10) and the compound represented by the above general formula (8) are heated in an organic solvent, preferably in the presence of a base. By carrying out the dehydration condensation reaction below, a cyano compound represented by the above general formula (3), (4) or (6) is obtained.
一般式(7)、(9)または(10)で示される化合物と上記一般式(8)で示される化合物の原料モル比は、通常、一般式(7)、(9)または(10)で示される化合物1モル(モノマー基準)に対して一般式(8)で示される化合物を1~3モルの範囲、好ましくは1~2モルの範囲である。反応溶媒は用いるほうが好ましく、例えばN,N-ジメチルホルムアミドやN-メチル-2-ピロリドン等の溶媒が挙げられる。溶媒の使用量は通常、一般式(5)または(6)で示される化合物1重量部に対して1~20重量部の範囲であるが、適宜調整されればよい。反応温度、反応時間は適宜調整されればよい。例えば、100~200℃の範囲にある温度、好ましくは130~160℃の範囲にある温度で0.5~12時間、好ましくは2~7時間反応させればよい。反応生成物の処理方法は特に制限されるものではない。例えば、反応終了後、反応液を冷却するか、もしくは水を加えることによって析出または再沈した固体や結晶を濾別し、水洗、乾燥して目的物を得ることが出来る。 The raw material molar ratio of the compound represented by general formula (7), (9) or (10) and the compound represented by general formula (8) above is usually The amount of the compound represented by formula (8) is 1 to 3 mol, preferably 1 to 2 mol, per 1 mol (monomer basis) of the compound shown. It is preferable to use a reaction solvent, and examples thereof include solvents such as N,N-dimethylformamide and N-methyl-2-pyrrolidone. The amount of the solvent used is usually in the range of 1 to 20 parts by weight per 1 part by weight of the compound represented by the general formula (5) or (6), but may be adjusted as appropriate. The reaction temperature and reaction time may be adjusted as appropriate. For example, the reaction may be carried out at a temperature in the range of 100 to 200°C, preferably in the range of 130 to 160°C, for 0.5 to 12 hours, preferably 2 to 7 hours. The method for treating the reaction product is not particularly limited. For example, after the reaction is completed, the reaction solution is cooled or water is added to separate the precipitated or reprecipitated solids and crystals by filtration, washed with water, and dried to obtain the desired product.
本発明のベンジルアミン含有ポリマー化合物は、廃酸アルコールの中和に有用な固体塩基である。中和後には濾別が容易であり、ベンジジン転位反応後の廃酸アルコールの回収リサイクルに好適に使用することができる。廃酸アルコールの中和方法は、特に制限されないが、酸を含むアルコール溶液に本発明のベンジルアミン含有ポリマー化合物を酸成分に対して1モル倍~10モル倍となる量を加え、還流温度まで加熱し撹拌する。攪拌時間は、例えば10~120分である。その後、室温に冷やし、ベンジルアミン含有ポリマー化合物を濾別することで、アルコールを回収することができる。 The benzylamine-containing polymeric compounds of the present invention are solid bases useful for neutralizing waste acid alcohols. After neutralization, it is easy to filter and separate, and it can be suitably used to recover and recycle waste acid alcohol after benzidine rearrangement reaction. The method for neutralizing waste acid alcohol is not particularly limited, but the benzylamine-containing polymer compound of the present invention is added in an amount of 1 to 10 times the mole of the acid component to an alcoholic solution containing an acid, and the mixture is heated to reflux temperature. Heat and stir. The stirring time is, for example, 10 to 120 minutes. Thereafter, the alcohol can be recovered by cooling to room temperature and filtering off the benzylamine-containing polymer compound.
以下、実施例を示し、本発明をより詳細に説明するが、本発明は下記の実施例に制限されるものでない。
下記実施例において用いた測定方法及び装置は以下の通りである。
1H核磁気共鳴スペクトル分析には、Avance iii HD 400(Bruker Biospin)を用い、測定溶媒は重DMSOを用いた。
13C核磁気共鳴スペクトル分析には、Avance iii HD 400(Bruker Biospin)を用い、測定溶媒は重DMSOを用いた。
赤外分光測定には日本分光製FT/IR-4700を使用し、ATR法により測定した。
EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to the Examples below.
The measuring method and apparatus used in the following examples are as follows.
Avance III HD 400 (Bruker Biospin) was used for 1 H nuclear magnetic resonance spectroscopy, and heavy DMSO was used as the measurement solvent.
Avance III HD 400 (Bruker Biospin) was used for 13 C nuclear magnetic resonance spectroscopy, and heavy DMSO was used as the measurement solvent.
Infrared spectroscopy was carried out using FT/IR-4700 manufactured by JASCO Corporation, and was carried out by the ATR method.
[実施例1]
ポリ(4-ヒドロキシスチレン)(PHS)と4-フルオロベンゾニトリルの縮合によるPHSベンゾニトリルの合成
メカニカル撹拌と温度計、ディーンスタークコンデンサー(トルエン満液)を備えた200mL4つ口フラスコに、4-フルオロベンゾニトリル12.1g(100mmol)とポリ(4‐ヒドロキシスチレン)9.6g(80mmol as monomer)、炭酸カリウム 13.8g(100mmol)、DMF100mL、トルエン10mLを仕込み、還流温度143℃まで加熱し、茶色スラリーを得た。生成水を留去しながらそのまま還流させた。3時間後、トルエンを留去して152℃まで昇温した。25℃に冷やし、イオン交換水200mLに注ぎ入れた。生じた沈殿を濾取し、ケーキを水とメタノールで洗浄した。風乾して乳白色粉末17.6gを得た。収率は99%であった。原料であるポリ(4‐ヒドロキシスチレン)のFT-IRにて観測されたフェノール性OH伸縮や変角(図1)が、得られた乳白色粉末では消失し(図2)、新たにC≡N伸縮の特性吸収が現れた。1Hおよび13C-NMRでも上記式(a)で表されるPHSベンゾニトリルが合成できたことを確認した(図3-7)。
平均分子量をGPCで測定した。数平均分子量Mn 22,651、重量平均分子量Mw 47,450、分散度Mw/Mn 2.095であった。
GPC測定条件は下記の通りである。
GPCスチレンベース、移動相:DMF(10mM LiBr)、カラム:TSKGEL SUPERAWM-H X 2、流速:0.5ml/min、カラム温度:40℃
[Example 1]
Synthesis of PHS benzonitrile by condensation of poly(4-hydroxystyrene) (PHS) and 4-fluorobenzonitrile
12.1 g (100 mmol) of 4-fluorobenzonitrile and 9.6 g (80 mmol as monomer) of poly(4-hydroxystyrene) were placed in a 200 mL four-necked flask equipped with a mechanical stirrer, a thermometer, and a Dean-Stark condenser (filled with toluene). , 13.8 g (100 mmol) of potassium carbonate, 100 mL of DMF, and 10 mL of toluene were charged and heated to a reflux temperature of 143° C. to obtain a brown slurry. The mixture was refluxed while distilling off the produced water. After 3 hours, toluene was distilled off and the temperature was raised to 152°C. It was cooled to 25° C. and poured into 200 mL of ion-exchanged water. The resulting precipitate was collected by filtration, and the cake was washed with water and methanol. It was air-dried to obtain 17.6 g of a milky white powder. The yield was 99%. The phenolic OH stretching and bending observed in FT-IR of the raw material poly(4-hydroxystyrene) (Fig. 1) disappeared in the obtained milky white powder (Fig. 2), and new C≡N A characteristic absorption of stretching appeared. 1 H and 13 C-NMR also confirmed that PHS benzonitrile represented by the above formula (a) could be synthesized (Figure 3-7).
Average molecular weight was measured by GPC. The number average molecular weight Mn was 22,651, the weight average molecular weight Mw was 47,450, and the degree of dispersion Mw/Mn was 2.095.
The GPC measurement conditions are as follows.
GPC styrene base, mobile phase: DMF (10mM LiBr), column: TSKGEL SUPERAWM-H X 2, flow rate: 0.5ml/min, column temperature: 40°C
[実施例2]
PHSベンゾニトリルの水素化アルミニウムリチウム還元
Lithium aluminum hydride reduction of PHS benzonitrile
[実施例3]
塩酸エタノール溶液の中和
36%塩酸0.50g(5.0mmol)とエタノール10mLの溶液に、PHSベンジルアミン2.2g(10mmol as monomer) を加え、還流温度まで加熱し30分間撹拌した。室温に冷やし、PHSベンジルアミンを濾別した。濾液を中和滴定して、HClが0.2mmolになったことを確かめた。
上記実施例3に示される通り、本発明のベンジルアミン含有ポリマー化合物は廃酸アルコールの中和に有用であり、また、中和後には濾別が容易である。
[Example 3]
Neutralization of hydrochloric acid ethanol solution
2.2 g (10 mmol as monomer) of PHS benzylamine was added to a solution of 0.50 g (5.0 mmol) of 36% hydrochloric acid and 10 mL of ethanol, heated to reflux temperature, and stirred for 30 minutes. It was cooled to room temperature and the PHS benzylamine was filtered off. The filtrate was subjected to neutralization titration to confirm that HCl was 0.2 mmol.
As shown in Example 3 above, the benzylamine-containing polymer compound of the present invention is useful for neutralizing waste acid alcohol, and can be easily filtered out after neutralization.
[実施例4]
テトラキス[1-t-ブチル-4-(4-シアノフェノキシ)]カリックス[4]アレーンの合成
Synthesis of tetrakis[1-t-butyl-4-(4-cyanophenoxy)]calix[4]arene
[実施例5]
テトラキス[1-t-ブチル-4-(4-シアノフェノキシ)]カリックス[4]アレーンの水素化アルミニウムリチウム還元
Lithium aluminum hydride reduction of tetrakis[1-t-butyl-4-(4-cyanophenoxy)]calix[4]arene
[実施例6]
ノボラック型ベンゾニトリルの合成
平均分子量をGPCで測定した。数平均分子量Mn1,352、重量平均分子量Mw5,838、分散度Mw/Mn4.319であった。
GPC測定条件は下記の通りである。
GPCスチレンベース、移動相:DMF(10mM LiBr)、カラム:TSKGEL SUPERAWM-H X 2、流速:0.5ml/min、カラム温度:40℃
[Example 6]
Synthesis of novolak-type benzonitrile
Average molecular weight was measured by GPC. The number average molecular weight Mn was 1,352, the weight average molecular weight Mw was 5,838, and the degree of dispersion Mw/Mn was 4.319.
The GPC measurement conditions are as follows.
GPC styrene base, mobile phase: DMF (10mM LiBr), column: TSKGEL SUPERAWM-H X 2, flow rate: 0.5ml/min, column temperature: 40°C
[実施例7]
ノボラック型ベンゾニトリルの水素化アルミニウムリチウム還元
Lithium aluminum hydride reduction of novolac-type benzonitrile
本発明のベンジルアミン含有ポリマー化合物は、廃酸アルコールの中和に有用な固体塩基である。中和後には濾別が容易であり、ベンジジン転位反応後の廃酸アルコールの回収リサイクルに好適に使用することができる。また、シアノ基含有ポリマー化合物は当該ベンジルアミン含有ポリマー化合物の前駆体として有用である。本発明のベンジルアミン含有ポリマー化合物を利用したベンジジン誘導体の製造方法は、コスト面、環境面からさらに発展させる可能性を大きく広げ、優れた固体塩基としての可能性が期待できる。
The benzylamine-containing polymeric compounds of the present invention are solid bases useful for neutralizing waste acid alcohols. After neutralization, it is easy to filter and separate, and it can be suitably used to recover and recycle waste acid alcohol after benzidine rearrangement reaction. Further, the cyano group-containing polymer compound is useful as a precursor of the benzylamine-containing polymer compound. The method for producing benzidine derivatives using the benzylamine-containing polymer compound of the present invention greatly expands the possibility of further development in terms of cost and environment, and is expected to have potential as an excellent solid base.
Claims (16)
の製造方法であって、下記式(3)
で表される構造単位を有するポリマー化合物のシアノ基を還元して上記式(1)で表されるポリマー化合物を得る工程を含む、前記製造方法。 A polymer compound having a structural unit represented by the following formula (1)
A method for manufacturing, the following formula (3)
The production method includes the step of reducing a cyano group of a polymer compound having a structural unit represented by the above formula (1) to obtain a polymer compound represented by the above formula (1).
で表される構造単位を有するポリマー化合物と、下記式(8)
で表される化合物を反応させて上記式(3)で表される構造単位を有するポリマー化合物を得る工程をさらに含む、請求項11記載の製造方法。 The following formula (7)
A polymer compound having a structural unit represented by the following formula (8)
The manufacturing method according to claim 11, further comprising the step of reacting a compound represented by the above to obtain a polymer compound having a structural unit represented by the above formula (3).
の製造方法であって、下記式(4)
で表される構造単位を有するポリマー化合物のシアノ基を還元して上記式(2)で表されるポリマー化合物を得る工程を含む、前記製造方法。 A polymer compound having a structural unit represented by the following formula (2)
A method for manufacturing, the following formula (4)
The manufacturing method includes the step of reducing a cyano group of a polymer compound having a structural unit represented by the above formula (2) to obtain a polymer compound represented by the above formula (2).
で表される構造単位を有するポリマー化合物と、下記式(8)
で表される化合物とを反応させて上記式(4)で表されるポリマー化合物を得る工程をさらに含む、請求項13記載の製造方法。 The following formula (9)
A polymer compound having a structural unit represented by the following formula (8)
The manufacturing method according to claim 13, further comprising the step of reacting with a compound represented by the formula (4) to obtain a polymer compound represented by the formula (4).
の製造方法であって、下記式(6)
で表される構造を有するポリマー化合物のシアノ基を還元して上記式(5)で表されるポリマー化合物を得る工程を含む、前記製造方法。 A polymer compound having a structure represented by the following formula (5)
A method for manufacturing, the following formula (6)
The manufacturing method includes the step of reducing a cyano group of a polymer compound having a structure represented by the above formula (5) to obtain a polymer compound represented by the above formula (5).
で表される構造を有するポリマー化合物と、下記式(8)
とを反応させて上記式(5)で表される構造を有するポリマー化合物を得る工程をさらに含む、請求項15記載の製造方法。
The following formula (10)
A polymer compound having a structure represented by and the following formula (8)
16. The manufacturing method according to claim 15, further comprising the step of reacting with the polymer compound having the structure represented by the above formula (5).
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