JP4696077B2 - シクロヘキセニルアルキルまたはアルケニルケトンの異性化法 - Google Patents
シクロヘキセニルアルキルまたはアルケニルケトンの異性化法 Download PDFInfo
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- -1 alkenyl ketones Chemical class 0.000 title claims description 18
- 238000006317 isomerization reaction Methods 0.000 title claims description 9
- 239000003054 catalyst Substances 0.000 claims description 33
- 150000001875 compounds Chemical class 0.000 claims description 33
- VYXHVRARDIDEHS-QGTKBVGQSA-N (1z,5z)-cycloocta-1,5-diene Chemical compound C\1C\C=C/CC\C=C/1 VYXHVRARDIDEHS-QGTKBVGQSA-N 0.000 claims description 23
- 239000002253 acid Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 13
- 229910052707 ruthenium Inorganic materials 0.000 claims description 12
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 11
- 239000002243 precursor Substances 0.000 claims description 11
- 239000002841 Lewis acid Substances 0.000 claims description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 10
- 150000007517 lewis acids Chemical class 0.000 claims description 10
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 claims description 2
- 101150065749 Churc1 gene Proteins 0.000 claims description 2
- 102100038239 Protein Churchill Human genes 0.000 claims description 2
- ICPMUWPXCAVOOQ-XCADPSHZSA-N cycloocta-1,3,5-triene Chemical compound C\1C\C=C/C=C\C=C/1 ICPMUWPXCAVOOQ-XCADPSHZSA-N 0.000 claims 2
- 239000002904 solvent Substances 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 150000001450 anions Chemical group 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 5
- 150000001993 dienes Chemical class 0.000 description 5
- WLTIDHLMFJRJHE-UHFFFAOYSA-N 1-(2,6,6-trimethylcyclohex-3-en-1-yl)ethanone Chemical compound CC1C=CCC(C)(C)C1C(C)=O WLTIDHLMFJRJHE-UHFFFAOYSA-N 0.000 description 4
- KDUIUFJBNGTBMD-DLMDZQPMSA-N [8]annulene Chemical group C/1=C/C=C\C=C/C=C\1 KDUIUFJBNGTBMD-DLMDZQPMSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000005671 trienes Chemical class 0.000 description 4
- WLTIDHLMFJRJHE-PSASIEDQSA-N 1-[(1s,2r)-2,6,6-trimethylcyclohex-3-en-1-yl]ethanone Chemical compound C[C@@H]1C=CCC(C)(C)[C@H]1C(C)=O WLTIDHLMFJRJHE-PSASIEDQSA-N 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 150000002576 ketones Chemical class 0.000 description 3
- 125000005394 methallyl group Chemical group 0.000 description 3
- 125000002524 organometallic group Chemical group 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 150000005672 tetraenes Chemical class 0.000 description 3
- 0 *CC1=CCC(*)C(*)(*)C1C(*)=O Chemical compound *CC1=CCC(*)C(*)(*)C1C(*)=O 0.000 description 2
- XHDIJFFIIOOTSV-UHFFFAOYSA-N 1-(2,2-dimethyl-6-methylidenecyclohexyl)ethanone Chemical compound CC(=O)C1C(=C)CCCC1(C)C XHDIJFFIIOOTSV-UHFFFAOYSA-N 0.000 description 2
- XFMMYPDDHPSAIH-UHFFFAOYSA-N 1-(2,6,6-trimethylcyclohex-2-en-1-yl)ethanone Chemical compound CC(=O)C1C(C)=CCCC1(C)C XFMMYPDDHPSAIH-UHFFFAOYSA-N 0.000 description 2
- JFWUBIJMEUTTNA-UHFFFAOYSA-N 1-(2,6,6-trimethylcyclohexen-1-yl)ethanone Chemical compound CC(=O)C1=C(C)CCCC1(C)C JFWUBIJMEUTTNA-UHFFFAOYSA-N 0.000 description 2
- XEJGJTYRUWUFFD-ZYHUDNBSSA-N 1-[(1s,2r)-2,6,6-trimethylcyclohex-3-en-1-yl]but-2-en-1-one Chemical compound CC=CC(=O)[C@H]1[C@H](C)C=CCC1(C)C XEJGJTYRUWUFFD-ZYHUDNBSSA-N 0.000 description 2
- HXVNBWAKAOHACI-UHFFFAOYSA-N 2,4-dimethyl-3-pentanone Chemical compound CC(C)C(=O)C(C)C HXVNBWAKAOHACI-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 239000012327 Ruthenium complex Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 150000004820 halides Chemical group 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- FMAMSYPJXSEYSW-VOTSOKGWSA-N (4e)-hepta-1,4-diene Chemical compound CC\C=C\CC=C FMAMSYPJXSEYSW-VOTSOKGWSA-N 0.000 description 1
- 125000006527 (C1-C5) alkyl group Chemical group 0.000 description 1
- XEJGJTYRUWUFFD-FNORWQNLSA-N (e)-1-(2,6,6-trimethyl-1-cyclohex-3-enyl)but-2-en-1-one Chemical compound C\C=C\C(=O)C1C(C)C=CCC1(C)C XEJGJTYRUWUFFD-FNORWQNLSA-N 0.000 description 1
- XEJGJTYRUWUFFD-NPNFKUNOSA-N (e)-1-[(1s,2r)-2,6,6-trimethylcyclohex-3-en-1-yl]but-2-en-1-one Chemical compound C\C=C\C(=O)[C@H]1[C@H](C)C=CCC1(C)C XEJGJTYRUWUFFD-NPNFKUNOSA-N 0.000 description 1
- XEJGJTYRUWUFFD-LCMYJQKYSA-N (e)-1-[(1s,2s)-2,6,6-trimethylcyclohex-3-en-1-yl]but-2-en-1-one Chemical compound C\C=C\C(=O)[C@H]1[C@@H](C)C=CCC1(C)C XEJGJTYRUWUFFD-LCMYJQKYSA-N 0.000 description 1
- IXLLBXDECOMIBP-UHFFFAOYSA-N 1-(2,2-dimethyl-6-methylidenecyclohexyl)but-2-en-1-one Chemical compound CC=CC(=O)C1C(=C)CCCC1(C)C IXLLBXDECOMIBP-UHFFFAOYSA-N 0.000 description 1
- CRIGTVCBMUKRSL-FNORWQNLSA-N 1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-enone Chemical compound C\C=C\C(=O)C1C(C)=CCCC1(C)C CRIGTVCBMUKRSL-FNORWQNLSA-N 0.000 description 1
- WLTIDHLMFJRJHE-WCBMZHEXSA-N 1-[(1s,2s)-2,6,6-trimethylcyclohex-3-en-1-yl]ethanone Chemical compound C[C@H]1C=CCC(C)(C)[C@H]1C(C)=O WLTIDHLMFJRJHE-WCBMZHEXSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- BGTBFNDXYDYBEY-FNORWQNLSA-N 4-(2,6,6-Trimethylcyclohex-1-enyl)but-2-en-4-one Chemical compound C\C=C\C(=O)C1=C(C)CCCC1(C)C BGTBFNDXYDYBEY-FNORWQNLSA-N 0.000 description 1
- 229910017008 AsF 6 Inorganic materials 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229910020366 ClO 4 Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 241000648097 Genetta pardina Species 0.000 description 1
- 229910018287 SbF 5 Inorganic materials 0.000 description 1
- 229910018286 SbF 6 Inorganic materials 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001638 boron Chemical class 0.000 description 1
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cis-cyclohexene Natural products C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 1
- FHEPZBIUHGLJMP-UHFFFAOYSA-N cyclohexene Chemical compound [CH]1CCCC=C1 FHEPZBIUHGLJMP-UHFFFAOYSA-N 0.000 description 1
- URYYVOIYTNXXBN-UPHRSURJSA-N cyclooctene Chemical compound C1CCC\C=C/CC1 URYYVOIYTNXXBN-UPHRSURJSA-N 0.000 description 1
- 239000004913 cyclooctene Substances 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000004407 fluoroaryl group Chemical group 0.000 description 1
- YUWFEBAXEOLKSG-UHFFFAOYSA-N hexamethylbenzene Chemical compound CC1=C(C)C(C)=C(C)C(C)=C1C YUWFEBAXEOLKSG-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000002097 pentamethylcyclopentadienyl group Chemical group 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003303 ruthenium Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- HVZJRWJGKQPSFL-UHFFFAOYSA-N tert-Amyl methyl ether Chemical compound CCC(C)(C)OC HVZJRWJGKQPSFL-UHFFFAOYSA-N 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- C07C403/14—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 doubly-bound oxygen atoms
- C07C403/16—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 doubly-bound oxygen atoms not being part of —CHO groups
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- 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
- B01J31/12—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
- B01J31/14—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides of aluminium or boron
- B01J31/146—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides of aluminium or boron of boron
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2282—Unsaturated compounds used as ligands
- B01J31/2291—Olefins
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2282—Unsaturated compounds used as ligands
- B01J31/2295—Cyclic compounds, e.g. cyclopentadienyls
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/28—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of the platinum group metals, iron group metals or copper
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- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
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- C07C49/527—Unsaturated compounds containing keto groups bound to rings other than six-membered aromatic rings
- C07C49/543—Unsaturated compounds containing keto groups bound to rings other than six-membered aromatic rings to a six-membered ring
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- C07C49/527—Unsaturated compounds containing keto groups bound to rings other than six-membered aromatic rings
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- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
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- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
以下に定義する式(II)または(II′)の化合物は、付香成分として、またはより複雑な骨格を有する化合物を構成するための原料として有用であり得る。
前記の問題を解決するために、本発明は式
a)式[Ru(ジエン)(アリル)2]、[Ru(ジエニル)2]、[Ru(テトラエン)(エン)]または[Ru(ジエン)(トリエン)]のルテニウム前駆物質と、
b)式HX[式中、Xは弱く配位するか、または配位しないアニオンである]のプロトン酸または式B(R3)3[式中、R3はフッ化物またはフェニル基を表し、場合により1〜5の基、たとえばハライド原子またはメチルまたはCF3基により置換されている]のルイス酸または式FeX3、FeX2、AgX、AlY3、FeY3、FeY2、SnY2、SnY4、AgY、AgY2、SbY5、AsY5またはPY5[式中、Xは上記で定義した基であり、かつYはフッ素または塩素原子である]のルイス酸
とを、酸/ルテニウムのモル比0.3〜3.1で、配位しないか、または弱く配位する媒体中、および不活性雰囲気下に反応させることにより得られる触媒の存在下で実施する、異性化法を提供する。
プロトン酸を使用して得られる触媒の存在下での1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノンの異性化
窒素下に20℃で攪拌されるトランス1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノン(4.52モル、トランス/シス=94/5〜99/1、純度≧99%)に、HBF4 −OEt2(HBF4の4.54ミリモル)および[Ru(COD)(メタリル)2](4.54ミリモル)を連続的に添加した。得られる溶液を130℃に加熱し、かつ窒素下に130℃で30分間攪拌した。その後、得られる混合物を20℃に冷却し、かつ次のものを含有する混合物が得られた(最終混合物の質量%、GC分析により得られた):
トランス−1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノン 6%、
シス−1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノン 1%、
1−(2,6,6−トリメチル−2−シクロヘキセン−1−イル)−1−エタノン 86%、
1−(2,2−ジメチル−6−メチレン−1−シクロヘキシル)−1−エタノン 2%、
1−(2,6,6−トリメチル−1−シクロヘキセン−1−イル)−1−エタノン 2%。
ルイス酸を使用して得られる触媒の存在下での1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノンの異性化
窒素下に20℃で攪拌されるトランス1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノン(4.52モル、トランス/シス=94/5〜99/1、純度≧99%)に、BF3・(AcOH)2(BF3の2.27ミリモル)および[Ru(COD)(メタリル)2](2.27ミリモル)を連続的に添加した。得られる溶液を130℃に加熱し、かつ窒素下に130℃で30分間攪拌した。その後、得られる混合物を20℃に冷却し、かつ次のものを含有する混合物が得られた(最終混合物の質量%、GC分析により得られた):
トランス−1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノン 7%、
シス−1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−1−エタノン 1%、
1−(2,6,6−トリメチル−2−シクロヘキセン−1−イル)−1−エタノン 87%、
1−(2,2−ジメチル−6−メチレン−1−シクロヘキシル)−1−エタノン 2%、
1−(2,6,6−トリメチル−1−シクロヘキセン−1−イル)−1−エタノン 観察されず。
ルイス酸を使用して得られる触媒の存在下での1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−2−ブテン−1−オンの異性化
窒素下に20℃で攪拌されるトランス1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−2−ブテン−1−オン(25g、130ミリモル、トランス:シス=98:2、純度≧99%)に、BF3・(AcOH)2(0.65ミリモル)および[Ru(COD)(メタリル)2](0.65ミリモル)を連続的に添加した。得られる溶液を130℃に加熱し、かつ窒素下に130℃で60分間攪拌した。次いで、得られる混合物を20℃に冷却し、かつ次のものを含有する混合物が得られた(最終混合物の質量%、GC分析により得られた):
トランス−1−(2,6,6−トリメチル−3−シクロヘキセン−1−イル)−2−ブテン−1−オン 9%、
1−(2,6,6−トリメチル−2−シクロヘキセン−1−イル)−2−ブテン−1−オン 86%、
1−(2,2−ジメチル−6−メチレン−1−シクロヘキシル)−2−ブテン−1−オン 1%、
1−(2,6,6−トリメチル−1−シクロヘキセン−1−イル)−2−ブテン−1−オン 観察されず。
Claims (5)
- 式(I)
a)式[Ru(COD)(2−メタリル)2][式中、「COD」はシクロオクタ−1,5−ジエンを表す]、[Ru(COD)(COT)][式中、「COD」はシクロオクタ−1,5−ジエンを表し、かつ「COT」はシクロオクタ−1,3,5−トリエンを表す]、[Ru(2,4−ジメチルペンタジエニル)2]または[Ru(2,4−ジメチル−1−オキサペンタジエニル)2]のルテニウム前駆物質と、
b)HBF4 ・Et2Oのプロトン酸またはBF3、BF3 ・Et2O、BF3 ・Bu2OまたはBF3 ・(AcOH)2のルイス酸とを、酸/ルテニウムのモル比0.3〜3.1で、配位しないか、または弱く配位する媒体中、および不活性雰囲気下に反応させることにより得られる触媒の存在下で実施する、式Iの基質の異性化法。 - R1が水素原子を表し、かつR2が水素原子またはメチルまたはCH=CHCH3基を表すことを特徴とする、請求項3記載の方法。
- a)式[Ru(COD)(2−メタリル)2][式中、「COD」はシクロオクタ−1,5−ジエンを表す]、[Ru(COD)(COT)][式中、「COD」はシクロオクタ−1,5−ジエンを表し、かつ「COT」はシクロオクタ−1,3,5−トリエンを表す]、[Ru(2,4−ジメチルペンタジエニル)2]または[Ru(2,4−ジメチル−1−オキサペンタジエニル)2]のルテニウム前駆物質および
b)BF3、BF3 ・Et2O、BF3 ・Bu2OまたはBF3 ・(AcOH)2のルイス酸
を反応させ、その際、酸/ルテニウムのモル比は0.3〜3.1であり、かつ反応は配位しないか、または弱く配位する媒体中および不活性雰囲気下で実施することにより得られる式(I)
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