JP2006505605A - アルキリデンシクロペンタノン誘導体の製造法 - Google Patents
アルキリデンシクロペンタノン誘導体の製造法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 13
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims abstract 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 10
- 150000002905 orthoesters Chemical class 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- -1 hept-5- En-2-yl Chemical group 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-L Malonate Chemical compound [O-]C(=O)CC([O-])=O OFOBLEOULBTSOW-UHFFFAOYSA-L 0.000 claims description 5
- 125000006701 (C1-C7) alkyl group Chemical group 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 4
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000006527 (C1-C5) alkyl group Chemical group 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 238000006114 decarboxylation reaction Methods 0.000 claims description 2
- 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 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 claims description 2
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 125000004434 sulfur atom Chemical group 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- IKEJDPUACFHKIZ-UHFFFAOYSA-N acetic acid;cyclopentane Chemical compound CC(O)=O.C1CCCC1 IKEJDPUACFHKIZ-UHFFFAOYSA-N 0.000 claims 1
- 238000011426 transformation method Methods 0.000 claims 1
- 230000008707 rearrangement Effects 0.000 abstract description 8
- 238000003786 synthesis reaction Methods 0.000 abstract description 7
- 239000007858 starting material Substances 0.000 abstract description 5
- 239000000543 intermediate Substances 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 150000001299 aldehydes Chemical class 0.000 description 6
- 238000007429 general method Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 150000002690 malonic acid derivatives Chemical class 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 4
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- HDPNBNXLBDFELL-UHFFFAOYSA-N 1,1,1-trimethoxyethane Chemical compound COC(C)(OC)OC HDPNBNXLBDFELL-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 description 3
- PPTXVXKCQZKFBN-UHFFFAOYSA-N (S)-(-)-1,1'-Bi-2-naphthol Chemical compound C1=CC=C2C(C3=C4C=CC=CC4=CC=C3O)=C(O)C=CC2=C1 PPTXVXKCQZKFBN-UHFFFAOYSA-N 0.000 description 2
- BZKFMUIJRXWWQK-UHFFFAOYSA-N Cyclopentenone Chemical compound O=C1CCC=C1 BZKFMUIJRXWWQK-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N pentanal Chemical compound CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- GEWDNTWNSAZUDX-WQMVXFAESA-N (-)-methyl jasmonate Chemical compound CC\C=C/C[C@@H]1[C@@H](CC(=O)OC)CCC1=O GEWDNTWNSAZUDX-WQMVXFAESA-N 0.000 description 1
- ORIWALZMHBORDX-UHFFFAOYSA-N (3-oxocyclopentyl) acetate Chemical class CC(=O)OC1CCC(=O)C1 ORIWALZMHBORDX-UHFFFAOYSA-N 0.000 description 1
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 1
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical compound C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 description 1
- NDQXKKFRNOPRDW-UHFFFAOYSA-N 1,1,1-triethoxyethane Chemical compound CCOC(C)(OCC)OCC NDQXKKFRNOPRDW-UHFFFAOYSA-N 0.000 description 1
- UCMHMFQVPDSGQZ-UHFFFAOYSA-N 2-(1-hydroxy-2-phenylmethoxyethyl)cyclopent-2-en-1-one Chemical compound C=1CCC(=O)C=1C(O)COCC1=CC=CC=C1 UCMHMFQVPDSGQZ-UHFFFAOYSA-N 0.000 description 1
- UMOQVPYBOVCJDG-UHFFFAOYSA-N 2-(2-ethoxy-1-hydroxyethyl)cyclopent-2-en-1-one Chemical compound CCOCC(O)C1=CCCC1=O UMOQVPYBOVCJDG-UHFFFAOYSA-N 0.000 description 1
- WMPCBUHAXWYETM-UHFFFAOYSA-N 2-[(2-ethyl-3-bicyclo[2.2.1]hept-5-enyl)-hydroxymethyl]cyclopent-2-en-1-one Chemical compound CCC1C(C=C2)CC2C1C(O)C1=CCCC1=O WMPCBUHAXWYETM-UHFFFAOYSA-N 0.000 description 1
- IAHZBRPNDIVNNR-UHFFFAOYSA-N 2-ethoxyacetaldehyde Chemical compound CCOCC=O IAHZBRPNDIVNNR-UHFFFAOYSA-N 0.000 description 1
- VNHCCMKKBXMUGE-UHFFFAOYSA-N 2-methylhept-5-enal Chemical compound CC=CCCC(C)C=O VNHCCMKKBXMUGE-UHFFFAOYSA-N 0.000 description 1
- NFNOAHXEQXMCGT-UHFFFAOYSA-N 2-phenylmethoxyacetaldehyde Chemical compound O=CCOCC1=CC=CC=C1 NFNOAHXEQXMCGT-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- HZUOOQFJVBGLOK-UHFFFAOYSA-N C(C)(=O)O.CC1(C(CCC1=O)=O)CC=CCC Chemical compound C(C)(=O)O.CC1(C(CCC1=O)=O)CC=CCC HZUOOQFJVBGLOK-UHFFFAOYSA-N 0.000 description 1
- QRMZZPIPGGYKCU-UHFFFAOYSA-N C(C)(=O)O.CC1C(C(C(C1)=O)=CCCCC)=O Chemical compound C(C)(=O)O.CC1C(C(C(C1)=O)=CCCCC)=O QRMZZPIPGGYKCU-UHFFFAOYSA-N 0.000 description 1
- SMAVSCDFFYNANM-UHFFFAOYSA-N C1(CCCC1)=O.OC(CCCC)C=1C(CCC1)=O Chemical compound C1(CCCC1)=O.OC(CCCC)C=1C(CCC1)=O SMAVSCDFFYNANM-UHFFFAOYSA-N 0.000 description 1
- AMNSTIPHACKJEU-UHFFFAOYSA-N COC(C=O)OC.OC(C(OC)OC)C=1C(CCC1)=O Chemical compound COC(C=O)OC.OC(C(OC)OC)C=1C(CCC1)=O AMNSTIPHACKJEU-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000005821 Claisen rearrangement reaction Methods 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 101001110286 Homo sapiens Ras-related C3 botulinum toxin substrate 1 Proteins 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- POBSSGWXXARTRM-UHFFFAOYSA-N OC(CCCC)C=1C(CCC1)=O.O=C1C(C(CC1)CC(=O)OC)=CCCCC Chemical compound OC(CCCC)C=1C(CCC1)=O.O=C1C(C(CC1)CC(=O)OC)=CCCCC POBSSGWXXARTRM-UHFFFAOYSA-N 0.000 description 1
- 102100022122 Ras-related C3 botulinum toxin substrate 1 Human genes 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- BGTOWKSIORTVQH-HOSYLAQJSA-N cyclopentanone Chemical class O=[13C]1CCCC1 BGTOWKSIORTVQH-HOSYLAQJSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- GEWDNTWNSAZUDX-UHFFFAOYSA-N methyl 7-epi-jasmonate Natural products CCC=CCC1C(CC(=O)OC)CCC1=O GEWDNTWNSAZUDX-UHFFFAOYSA-N 0.000 description 1
- KVWWIYGFBYDJQC-UHFFFAOYSA-N methyl dihydrojasmonate Chemical compound CCCCCC1C(CC(=O)OC)CCC1=O KVWWIYGFBYDJQC-UHFFFAOYSA-N 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/0026—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring
- C11B9/003—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring the ring containing less than six carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- 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
- C07C45/68—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 by increase in the number of carbon atoms
- C07C45/72—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 by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/27—Preparation of carboxylic acid esters from ortho-esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
- C07C67/34—Migration of groups in the molecule
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
- C07C69/738—Esters of keto-carboxylic acids or aldehydo-carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/10—Systems containing only non-condensed rings with a five-membered ring the ring being unsaturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/36—Systems containing two condensed rings the rings having more than two atoms in common
- C07C2602/42—Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
シクロペンタノン誘導体、例えばHedione(登録商標)(メチル3−オキソ−2−ペンチル−1−シクロペンタノンアセテート;出所Firmenich S.A.)、メチル3−オキソ−2−(2−ペンテニル)−1−シクロペンタノンアセテート(メチルジャスモネート)またはメチル3−オキソ−2−ペンチル−1−シクロペンタノン−1−アセテートは、香料工業の極めて重要な成分である。その結果として、上記の付香成分の合成に有利に使用されることができる、新規の中間体およびその製造方法が必要とされる。
本発明は、式(I)
a)R1は、n−ブチル基またはCH2X、CHOまたはCH3−nZn基を表わし、Xは、ハロゲン原子または(3c−エチル−ビシクロ[2.2.1]ヘプト−5−エン−2−リル)メチル基を表わし;
nは、1または2であり、Zは、C(OR)2、OR3またはSR3基を表わし;
Rは、先にGについて定義されたような基を表わし;
R3は、別々にC1〜C7−ベンジル基、C1〜C7−アルキル基、C1〜C7−シクロアルキル基もしくはC1〜C7−オキサシクロアルキル基またはC1〜C7−アシル基、スルホニル基もしくはシリル基を表わすかまたは一緒になってR3に結合されている炭素原子および酸素原子または硫黄原子とともにC3〜C7−1,3−ジオキサシクロアルカン環もしくはC3〜C7−1,3−ジチアシクロアルカン環を表わし;および
b)R2は、直鎖状または分枝鎖状C1〜C4−アルキル基を表わす〕で示される化合物を異性体の任意の1つまたはその混合物の形で合成することを目的とする新規の方法に関する。
2−(1−ヒドロキシペンチル)−2−シクロペンテン−1−オンの合成
無水THF(12ml)中のシクロペンタノン(1.23g、15mmol)、ペンタナール(1.94g、22.5mmol)、rac−1,1′−ビ−2−ナフトール(429mg、1.5mmol)およびトリブチルホスフィン(606mg、3mmol)の溶液を、20℃でアルゴン雰囲気下に3時間攪拌した。次に、この溶液をSiO2の短いカラム(シクロヘキサン/Et2O 6:4)に通過させ、純粋な標題の化合物を92%の収率で得た。
トリメチルオルトアセテート(5ml、39.3mmol)中の2−(1−ヒドロキシペンチル)−2−シクロペンテン−1−オン(720mg、4.2mmol)およびピバリン酸(100mg、0.98mmol)の混合物を、MeOHを蒸留させながら115℃で3時間加熱した。濃縮された反応混合物をバルブ−トゥ−バルブ(bulb-to-bulb)方式で蒸留し、標題の化合物を88%の収率および66:34(Z)/(E)混合物の形で得た。
本発明による他の化合物の合成
a)式(II)の化合物を製造するための一般的な方法
THF(シクロペンテノンに対して800ml/mol)中のシクロペンテノン(1.0モル等量)、適当なアルデヒド(1.50モル等量)、1,1′−ビ−2−ナフトール(0.1モル等量)およびnBu3P(0.2モル等量)の溶液を、20℃でアルゴン雰囲気下に3〜15時間攪拌する。粗製の反応混合物をSiO2の短いカラム(cヘキサン/Et2O 7:3)に通過させ、望ましい生成物を出発アルデヒドおよびnBu3Pから分離し、ならびに1,1′−ビ−2−ナフトールを形成させる。
一般的な方法によりグリオキサール−1,1−ジメチルアセタール(tBuOMe中の45%溶液の形で)を出発アルデヒドとして使用して96%の収率で得た。
一般的な方法により(ベンジルオキシ)アセトアルデヒドを出発アルデヒドとして使用して65%の収率で得た。
一般的な方法により2−エチルオキシ−アセトアルデヒドを出発アルデヒドとして使用して27%の収率で得た。
一般的な方法により1.1モル等量のシスエンド/シスエキソ エチルビシクロ[2.2.1]ヘプト−5−エン−2−カルボアルデヒドの6.5:1混合物を出発アルデヒドとして使用して27%の収率で得た。
化合物(II)(1.0モル当量)、トリメチル−オルトアセテート(化合物(II)に対して1770ml/mol)およびピバリン酸(0.17モル当量)の混合物を、MeOHを蒸留させながら120℃で3時間加熱した。反応混合物を濃縮させ、バルブ−トゥ−バルブ(bulb-to-bulb)方式で蒸留し、相応する化合物(III)をE:Z混合物として得た。
一般的な方法によりa.i)に記載の化合物(II)を出発物質として使用して96%の収率で得た。反応混合物を濃縮させ、バルブ−トゥ−バルブ(bulb-to-bulb)方式で蒸留し(180℃/0.1ミリバール)、標題の化合物を3:2 E:Z混合物として得た。
一般的な方法によりa.ii)に記載の化合物(II)を出発物質として使用して68%の収率で得た。
一般的な方法によりa.iii)に記載の化合物(II)を出発物質として使用して53%の収率で得た。得られた生成物は、E異性体およびZ異性体を1/1の比で含有する混合物である。
一般的な方法によりa.iv)に記載の化合物(II)を出発物質として使用して53%の収率で得た。
トリメチル−オルトアセテートの代わりにトリエチル−オルトアセテートを使用し、バルブ−トゥ−バルブ(bulb-to-bulb)方式で蒸留(200℃/0.1ミリバール)により、標題の化合物を異性体の1/2/3/4混合物(シス−E/Zおよびエンド/エキソ−異性体)として50%の収率で得た。
Claims (9)
- 式(I)
a)R1は、n−ブチル基またはCH2X、CHOまたはCH3−nZn基を表わし、Xは、ハロゲン原子または(3c−エチル−ビシクロ[2.2.1]ヘプト−5−エン−2−リル)メチル基を表わし;
nは、1または2であり、Zは、C(OR)2、OR3またはSR3基を表わし;
Rは、先にGについて定義されたような基を表わし;
R3は、別々にC1〜C7−ベンジル基、C1〜C7−アルキル基、C1〜C7−シクロアルキル基もしくはC1〜C7−オキサシクロアルキル基またはC1〜C7−アシル基、スルホニル基もしくはシリル基を表わすかまたは一緒になってR3に結合されている炭素原子および酸素原子または硫黄原子とともにC3〜C7−1,3−ジオキサシクロアルカン環もしくはC3〜C7−1,3−ジチアシクロアルカン環を表わし;および
b)R2は、直鎖状または分枝鎖状C1〜C4−アルキル基を表わす〕で示される化合物を異性体の任意の1つまたはその混合物の形で製造する方法において、異性体の任意の1つまたはその混合物の形の式(II)
- 式(II)の化合物を式CH3C(OR2)3〔式中、R2は、請求項1の定義と同じである〕で示されるオルトエステルと反応させることによって、変換を実施する、請求項2記載の方法。
- R1は、n−ブチル基またはCH2X、CHOもしくはCH3−nZn基を表わし、Xは、ハロゲン原子を表わし、nは、1または2であり、Zは、OR3またはSR3を表わし、RおよびR3は、請求項1に定義されたような基を表わす、請求項1から3までのいずれか1項に記載の方法。
- Gは、CO基またはC3〜C4−1,3−ジオキサシクロアルカン基を表わし、R1は、n−ブチル基、C(OR)2基を表わし、Rは、請求項1に定義されたような基、CH2ClまたはCH2Br基を表わすかまたは選択的にCH2OR3基を表わし、R3は、C1〜C7−ベンジル基、C1〜C7−アルキル基、C1〜C7−シクロアルキル基またはC1〜C7−オキサシクロアルキル基を表わすかまたはC1〜C7−アシル基、スルホニル基またはシリル基を表わし、R2は、メチル基を表わす、請求項4記載の方法。
- Gは、CO基を表わし、R1は、n−ブチル基を表わし、R2は、メチル基を表わす、請求項4記載の方法。
- GがCO基を表わし、R3がブチル基を表わす、請求項7記載の化合物。
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PCT/IB2003/004886 WO2004043895A1 (en) | 2002-11-11 | 2003-10-30 | A process for the preparation of alkylidenecyclopentanone derivatives |
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JPH10504325A (ja) * | 1995-06-08 | 1998-04-28 | フイルメニツヒ ソシエテ アノニム | 不飽和脂環式ケトンの製造法 |
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Non-Patent Citations (2)
Title |
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JPN6009030592, Rafik GATRI et al., Tetrahedron Letters, 200210, vol.43, pp.7835−7836 * |
JPN7009003003, Shinya KUSUDA et al., Bulletin of the Chemical Society of Japan, 1993, Vol. 66, No. 9, pp.2720−2724 * |
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