KR101081115B1 - 베타카로텐의 제조방법 - Google Patents
베타카로텐의 제조방법 Download PDFInfo
- Publication number
- KR101081115B1 KR101081115B1 KR1020030093819A KR20030093819A KR101081115B1 KR 101081115 B1 KR101081115 B1 KR 101081115B1 KR 1020030093819 A KR1020030093819 A KR 1020030093819A KR 20030093819 A KR20030093819 A KR 20030093819A KR 101081115 B1 KR101081115 B1 KR 101081115B1
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- South Korea
- Prior art keywords
- reaction
- carotene
- formula
- solvent
- beta
- Prior art date
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- 238000002360 preparation method Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims abstract description 68
- 150000001875 compounds Chemical class 0.000 claims abstract description 55
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 0.000 claims abstract description 39
- OENHQHLEOONYIE-UKMVMLAPSA-N all-trans beta-carotene Natural products CC=1CCCC(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C OENHQHLEOONYIE-UKMVMLAPSA-N 0.000 claims abstract description 37
- 235000013734 beta-carotene Nutrition 0.000 claims abstract description 36
- 239000011648 beta-carotene Substances 0.000 claims abstract description 36
- TUPZEYHYWIEDIH-WAIFQNFQSA-N beta-carotene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CCCC1(C)C)C=CC=C(/C)C=CC2=CCCCC2(C)C TUPZEYHYWIEDIH-WAIFQNFQSA-N 0.000 claims abstract description 34
- 229960002747 betacarotene Drugs 0.000 claims abstract description 34
- 239000002904 solvent Substances 0.000 claims abstract description 31
- 239000003054 catalyst Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- -1 carotene compound Chemical class 0.000 claims abstract description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 30
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 30
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 18
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- 150000004703 alkoxides Chemical class 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000000376 reactant Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000007810 chemical reaction solvent Substances 0.000 claims description 5
- 238000004821 distillation Methods 0.000 claims description 5
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 2
- 239000012044 organic layer Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- 150000007523 nucleic acids Chemical class 0.000 claims 1
- 102000039446 nucleic acids Human genes 0.000 claims 1
- 108020004707 nucleic acids Proteins 0.000 claims 1
- PMTBZAVERRPRHU-YGVNLFKFSA-N CC1(C)CCCC(C)=C1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C.CC1(C)CCCC(C)=C1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C Chemical compound CC1(C)CCCC(C)=C1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C.CC1(C)CCCC(C)=C1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C PMTBZAVERRPRHU-YGVNLFKFSA-N 0.000 abstract description 2
- UPYKUZBSLRQECL-UKMVMLAPSA-N Lycopene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1C(=C)CCCC1(C)C)C=CC=C(/C)C=CC2C(=C)CCCC2(C)C UPYKUZBSLRQECL-UKMVMLAPSA-N 0.000 abstract 1
- 235000005473 carotenes Nutrition 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 235000013305 food Nutrition 0.000 abstract 1
- NCYCYZXNIZJOKI-UHFFFAOYSA-N vitamin A aldehyde Natural products O=CC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C NCYCYZXNIZJOKI-UHFFFAOYSA-N 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 33
- 230000000052 comparative effect Effects 0.000 description 25
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 20
- 239000013078 crystal Substances 0.000 description 16
- 239000000047 product Substances 0.000 description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- 239000000543 intermediate Substances 0.000 description 9
- 238000001953 recrystallisation Methods 0.000 description 8
- 238000003756 stirring Methods 0.000 description 7
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- DYLIWHYUXAJDOJ-OWOJBTEDSA-N (e)-4-(6-aminopurin-9-yl)but-2-en-1-ol Chemical compound NC1=NC=NC2=C1N=CN2C\C=C\CO DYLIWHYUXAJDOJ-OWOJBTEDSA-N 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 229960005235 piperonyl butoxide Drugs 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000004811 liquid chromatography Methods 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- KKYAVAJWXGOARF-UHFFFAOYSA-N C(Cl)Cl.O1CCCC1.O1CCOCC1 Chemical compound C(Cl)Cl.O1CCCC1.O1CCOCC1 KKYAVAJWXGOARF-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- 150000002084 enol ethers Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229960001295 tocopherol Drugs 0.000 description 2
- 229930003799 tocopherol Natural products 0.000 description 2
- 235000010384 tocopherol Nutrition 0.000 description 2
- 239000011732 tocopherol Substances 0.000 description 2
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- MGGVALXERJRIRO-UHFFFAOYSA-N 4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-2-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-1H-pyrazol-5-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)O MGGVALXERJRIRO-UHFFFAOYSA-N 0.000 description 1
- PVNQOIDKAATHPL-UHFFFAOYSA-N CCCCCC.[K] Chemical compound CCCCCC.[K] PVNQOIDKAATHPL-UHFFFAOYSA-N 0.000 description 1
- 0 CCC[I+][C@@](*)CC(C)C[C@@](C)[N+](CC=C1CC(C=I(C)C=IC23C(C)(C)CCCC2C3C)[O+]*C1)([O-])O Chemical compound CCC[I+][C@@](*)CC(C)C[C@@](C)[N+](CC=C1CC(C=I(C)C=IC23C(C)(C)CCCC2C3C)[O+]*C1)([O-])O 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-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
- 206010028980 Neoplasm Diseases 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- XIVHKDORXXFZFB-UHFFFAOYSA-N [K].CCCCCCC Chemical compound [K].CCCCCCC XIVHKDORXXFZFB-UHFFFAOYSA-N 0.000 description 1
- ZVQOOHYFBIDMTQ-UHFFFAOYSA-N [methyl(oxido){1-[6-(trifluoromethyl)pyridin-3-yl]ethyl}-lambda(6)-sulfanylidene]cyanamide Chemical compound N#CN=S(C)(=O)C(C)C1=CC=C(C(F)(F)F)N=C1 ZVQOOHYFBIDMTQ-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- ANVAOWXLWRTKGA-XHGAXZNDSA-N all-trans-alpha-carotene Natural products CC=1CCCC(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1C(C)=CCCC1(C)C ANVAOWXLWRTKGA-XHGAXZNDSA-N 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 239000007806 chemical reaction intermediate Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000000576 food coloring agent Substances 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 238000006772 olefination reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003444 phase transfer catalyst Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- QMEHFJGLJHMPHU-UHFFFAOYSA-N potassium;toluene Chemical compound [K].CC1=CC=CC=C1 QMEHFJGLJHMPHU-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010898 silica gel chromatography Methods 0.000 description 1
- DIAOMFHSHXYYDC-UHFFFAOYSA-N sodium;ethanol;methanolate Chemical compound [Na+].[O-]C.CCO DIAOMFHSHXYYDC-UHFFFAOYSA-N 0.000 description 1
- BLAZEDBPLSCQQA-UHFFFAOYSA-N sodium;methanolate;oxolane Chemical compound [Na+].[O-]C.C1CCOC1 BLAZEDBPLSCQQA-UHFFFAOYSA-N 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
- C07C403/24—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by six-membered non-aromatic rings, e.g. beta-carotene
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0201—Oxygen-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
비교예 2 | 실시예 1 | 비교예 3 | |
촉 매 | 수산화칼륨 | 소디움메톡사이드 | 포타슘 t-부톡사이드 |
남아있는 트리술폰의 비율 | 15% | 100% | 0% |
비교예 4 | 실시예 2 | 실시예 3 | |
용매 | 메틸렌클로라이드 | 테트라하이드로퓨란 | 다이옥산 |
남아있는 트리술폰의 비율 | 70% | 85% | 90% |
비교예 5 | 실시예 4 | 비교예 6 | |
촉 매 | 수산화칼륨 | 소디움메톡사이드 | 포타슘 t-부톡사이드 |
남아있는 디술폰의 비율 | 25% | 100% | 10% |
비교예 7 | 실시예 5 | 실시예 6 | |
용 매 | 메틸렌클로라이드 | 테트라하이드로퓨란 | 다이옥산 |
남아있는 트리술폰의 비율 | 75% | 90% | 85% |
용 매 | 수 율 | |
비교예 8 | 메틸렌클로라이드 | 35% |
비교예 9 | 아이소프로필 에테르 | 반응되지 않음 |
비교예 10 | 트리에틸렌글리코 디메틸 에테르 | 반응되지 않음 |
실시예 7 | 다이옥산 | 60% |
실시예 8 | 테트라하이드로퓨란 | 62% |
넣어준 메탄올의 함량 (트리술폰 대비 중량%) |
트랜스 이성질체/시스 이성질체 비율 | |
실시예 9 | 0% | 2.1 |
실시예 10 | 5% | 3.5 |
실시예 11 | 10% | 4.1 |
실시예 12 | 30% | 4.0 |
반응온도(℃) | 수 율 | |
실시예 13 | 25℃ | 60% |
실시예 14 | 10℃ | 65% |
실시예 15 | -5℃ | 68% |
실시예 16 | -10℃ | 70% |
실시예 17 | -20℃ | 72% |
용 매 | 촉 매 | 반응온도 | 수 율 | |
실시예 19 | 헥산 | 포타슘 t-부톡사이드 | 68℃ | 80% |
비교예 11 | 헵탄 | 소디움메톡사이드 | 110℃ | 40% |
비교예 12 | 헵탄 | 포타슘 t-부톡사이드 | 110℃ | 30% |
비교예 13 | 톨루엔 | 포타슘 t-부톡사이드 | 50℃ | 45% |
실시예 20 | 디엠에프 | 소디움메톡사이드 | 50℃ | 78% |
실시예 21 | 테트라하이드로퓨란 | 소디움메톡사이드 | 50℃ | 85% |
비교예 14 | 에탄올 | 소디움메톡사이드 | 78℃ | 70% |
트랜스 이성질체/ | 시스 이성질체 비율 | |||
온 도 | 0시간 | 1시간 후 | 3시간 후 | |
비교예 16 | 67℃ | 96.6%/3.4% | 87.5%/12.5% | 71.2%/28.8% |
비교예 17 | 60℃ | 96.6%/3.4% | 93.3%/6.7% | 86.7%/13.3% |
실시예 24 | 50℃ | 96.6%/3.4% | 95.9%/4.1% | 94.4%/5.6% |
실시예 25 | 40℃ | 96.6%/3.4% | 96.5%/3.5% | 96.4%/3.6% |
Claims (9)
- (a) 메탈알콕사이드 촉매 및 테트라하이드로퓨란 또는 다이옥산 용매의 존재하에서 하기 화학식 1로 표시되는 트리술폰 화합물을 사염화탄소, C2Cl6, 또는 CCl2Br2을 적하하면서 램베르그-백클룬트 반응시켜 하기 화학식 2로 표시되는 디술폰 화합물을 얻는 단계; 및(b) 메탈알콕사이드 촉매 및 디메틸포름아미드(DMF), 핵산, 또는 테트라하이드로퓨란의 용매의 존재하에서 상기 화학식 2로 표시되는 디술폰 화합물을 디하이드로설폰화 반응시켜 하기 화학식 3으로 표시되는 베타카로텐을 얻는 단계를 포함하는 것을 특징으로 하는 베타카로텐의 제조방법:화학식 1화학식 2화학식 3
- 제1항에 있어서, 상기 (a) 단계 반응시 상기 화학식 1로 표시되는 트리술폰 화합물에 대하여 5∼30중량%의 C1-C6의 알코올이 더욱 첨가되는 것을 특징으로 하는 베타카로텐의 제조방법.
- 제1항에 있어서, 상기 (a) 단계의 메탈알콕사이드 촉매는 소디움에톡사이드(sodium ethoxide) 또는 소디움메톡사이드(sodium ethoxide)인 것을 특징으로 하는 베타카로텐의 제조방법.
- 삭제
- 삭제
- 제1항에 있어서, 상기 방법은 (a) 단계의 반응 후, 반응물에 염산 수용액을 첨가하고 감압증류를 통하여 반응용매를 제거한 다음, 메틸렌클로라이드에 용해시키고, C1-C6의 알코올을 적하하여 결정화시킨 후, 여과하여 정제하는 단계를 더욱 포함하는 것을 특징으로 하는 베타카로텐의 제조방법.
- 제1항에 있어서, 상기 (b) 단계의 메탈알콕사이드 촉매는 소디움알콕사이드인 것을 특징으로 하는 베타카로텐의 제조방법.
- 삭제
- 제1항에 있어서, 상기 방법은 (b) 단계의 반응 후, 반응물에 물을 첨가하여 반응생성물을 유기층에서 물 층으로 녹여내고 C1-C6의 알코올을 적하하여 결정화시킨 후, 여과하여 정제하는 단계를 더욱 포함하는 것을 특징으로 하는 베타카로텐의 제조방법.
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