JP4448346B2 - 新規な光学活性含フッ素環状化合物及びその製造方法 - Google Patents
新規な光学活性含フッ素環状化合物及びその製造方法 Download PDFInfo
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- 150000001923 cyclic compounds Chemical class 0.000 title claims description 22
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims description 21
- 229910052731 fluorine Inorganic materials 0.000 title claims description 21
- 239000011737 fluorine Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title description 12
- 150000001875 compounds Chemical class 0.000 claims description 41
- 150000001412 amines Chemical class 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 230000003287 optical effect Effects 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000004593 Epoxy Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 15
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims description 13
- 150000003863 ammonium salts Chemical class 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 125000005869 (methoxyethoxy)methanyl group Chemical group [H]C([H])([H])OC([H])([H])C([H])([H])OC([H])([H])* 0.000 claims 2
- 239000002904 solvent Substances 0.000 description 15
- 239000000047 product Substances 0.000 description 13
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-diisopropylethylamine Substances CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 9
- 238000005481 NMR spectroscopy Methods 0.000 description 9
- 125000000217 alkyl group Chemical group 0.000 description 9
- 229920006395 saturated elastomer Polymers 0.000 description 9
- -1 methoxybenzyl group Chemical group 0.000 description 8
- 239000012074 organic phase Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 7
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
- 125000000753 cycloalkyl group Chemical group 0.000 description 6
- 125000005843 halogen group Chemical group 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 5
- 125000003342 alkenyl group Chemical group 0.000 description 5
- 125000000304 alkynyl group Chemical group 0.000 description 5
- 150000001408 amides Chemical group 0.000 description 5
- 125000003277 amino group Chemical group 0.000 description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 125000000623 heterocyclic group Chemical group 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 238000010898 silica gel chromatography Methods 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 description 5
- 235000011152 sodium sulphate Nutrition 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- 125000001424 substituent group Chemical group 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 125000002252 acyl group Chemical group 0.000 description 4
- 125000004093 cyano group Chemical group *C#N 0.000 description 4
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 4
- 150000002118 epoxides Chemical class 0.000 description 4
- 125000004185 ester group Chemical group 0.000 description 4
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 4
- 238000004809 thin layer chromatography Methods 0.000 description 4
- 0 *CC(C*CC1)(C1O)F Chemical compound *CC(C*CC1)(C1O)F 0.000 description 3
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 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
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- 125000003367 polycyclic group Chemical group 0.000 description 3
- 238000007142 ring opening reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- FUKPGVRNVQBGPH-STQMWFEESA-N O[C@H]1CCC[C@]1(F)COCC1=CC=CC=C1 Chemical compound O[C@H]1CCC[C@]1(F)COCC1=CC=CC=C1 FUKPGVRNVQBGPH-STQMWFEESA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000003682 fluorination reaction Methods 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 125000006239 protecting group Chemical group 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000008707 rearrangement Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 description 2
- MCLZMGIASIKJHG-KBPBESRZSA-N (1S,2S)-2-fluoro-2-(phenylmethoxymethyl)cyclohexan-1-ol Chemical compound O[C@H]1CCCC[C@]1(F)COCC1=CC=CC=C1 MCLZMGIASIKJHG-KBPBESRZSA-N 0.000 description 1
- AWAKVKWIKSPFDB-STQMWFEESA-N (1S,5S)-1-(phenylmethoxymethyl)-6-oxabicyclo[3.1.0]hexane Chemical compound C(C1=CC=CC=C1)OC[C@]12CCC[C@@H]2O1 AWAKVKWIKSPFDB-STQMWFEESA-N 0.000 description 1
- ROAGVQMPLXTNRD-UHFFFAOYSA-N 1-(phenylmethoxymethyl)-10-oxabicyclo[7.1.0]decane Chemical compound C(C1=CC=CC=C1)OCC12CCCCCCCC2O1 ROAGVQMPLXTNRD-UHFFFAOYSA-N 0.000 description 1
- AWAKVKWIKSPFDB-UHFFFAOYSA-N 1-(phenylmethoxymethyl)-6-oxabicyclo[3.1.0]hexane Chemical compound C1CCC(O2)C12COCC1=CC=CC=C1 AWAKVKWIKSPFDB-UHFFFAOYSA-N 0.000 description 1
- LGACERBHUYTYKI-UHFFFAOYSA-N 1-(phenylmethoxymethyl)-7-oxabicyclo[4.1.0]heptane Chemical compound C1CCCC(O2)C12COCC1=CC=CC=C1 LGACERBHUYTYKI-UHFFFAOYSA-N 0.000 description 1
- TUXBLZVMVJOZOV-UHFFFAOYSA-N 1-(phenylmethoxymethyl)-8-oxabicyclo[5.1.0]octane Chemical compound C(C1=CC=CC=C1)OCC12CCCCCC2O1 TUXBLZVMVJOZOV-UHFFFAOYSA-N 0.000 description 1
- HOFZASNYWQUMGG-UHFFFAOYSA-N 1-(phenylmethoxymethyl)-9-oxabicyclo[6.1.0]nonane Chemical compound C(C1=CC=CC=C1)OCC12CCCCCCC2O1 HOFZASNYWQUMGG-UHFFFAOYSA-N 0.000 description 1
- ZSNWWXINLWLYPV-UHFFFAOYSA-N 2-fluoro-2-(phenylmethoxymethyl)cycloheptan-1-ol Chemical compound C(C1=CC=CC=C1)OCC1(C(CCCCC1)O)F ZSNWWXINLWLYPV-UHFFFAOYSA-N 0.000 description 1
- MCLZMGIASIKJHG-UHFFFAOYSA-N 2-fluoro-2-(phenylmethoxymethyl)cyclohexan-1-ol Chemical compound OC1CCCCC1(F)COCC1=CC=CC=C1 MCLZMGIASIKJHG-UHFFFAOYSA-N 0.000 description 1
- LLRATCDOSKPAGX-UHFFFAOYSA-N 2-fluoro-2-(phenylmethoxymethyl)cyclononan-1-ol Chemical compound C(C1=CC=CC=C1)OCC1(C(CCCCCCC1)O)F LLRATCDOSKPAGX-UHFFFAOYSA-N 0.000 description 1
- RPCXNDDGUSARMV-UHFFFAOYSA-N 2-fluoro-2-(phenylmethoxymethyl)cyclooctan-1-ol Chemical compound C(C1=CC=CC=C1)OCC1(C(CCCCCC1)O)F RPCXNDDGUSARMV-UHFFFAOYSA-N 0.000 description 1
- BXNKUUAXQWAHLT-UHFFFAOYSA-N C(C1=CC=CC=C1)OCC1(C(CCC1)O)F.C(C1=CC=CC=C1)OCC1(C(CC1)O)F Chemical compound C(C1=CC=CC=C1)OCC1(C(CCC1)O)F.C(C1=CC=CC=C1)OCC1(C(CC1)O)F BXNKUUAXQWAHLT-UHFFFAOYSA-N 0.000 description 1
- VLQFCHPHIPEKOY-UHFFFAOYSA-N C1(=CC=CC=C1)COCC12CCC2O1 Chemical compound C1(=CC=CC=C1)COCC12CCC2O1 VLQFCHPHIPEKOY-UHFFFAOYSA-N 0.000 description 1
- NWIOVJZEPXLNAU-WCQYABFASA-N CC1=C(C(=O)O[C@]2([C@H](CCC2)O)F)C=CC=C1 Chemical compound CC1=C(C(=O)O[C@]2([C@H](CCC2)O)F)C=CC=C1 NWIOVJZEPXLNAU-WCQYABFASA-N 0.000 description 1
- WCTHSYSLMUTEPR-UWVGGRQHSA-N COCCOCOC[C@@]1(F)CCC[C@@H]1O Chemical compound COCCOCOC[C@@]1(F)CCC[C@@H]1O WCTHSYSLMUTEPR-UWVGGRQHSA-N 0.000 description 1
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 1
- MCLZMGIASIKJHG-UONOGXRCSA-N O[C@@H](CCCC1)[C@@]1(COCc1ccccc1)F Chemical compound O[C@@H](CCCC1)[C@@]1(COCc1ccccc1)F MCLZMGIASIKJHG-UONOGXRCSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Chemical group C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- 125000005002 aryl methyl group Chemical group 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- KFSZGBHNIHLIAA-UHFFFAOYSA-M benzyl(trimethyl)azanium;fluoride Chemical compound [F-].C[N+](C)(C)CC1=CC=CC=C1 KFSZGBHNIHLIAA-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 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
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([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
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011982 enantioselective catalyst Substances 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000005870 sharpless asymmetric epoxidation reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- QSUJAUYJBJRLKV-UHFFFAOYSA-M tetraethylazanium;fluoride Chemical compound [F-].CC[N+](CC)(CC)CC QSUJAUYJBJRLKV-UHFFFAOYSA-M 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
清水真、吉岡宏輔、テトラヘドロンレターズ(Tetrahedron Lett.), 29, 4101(1988)
当該化合物の製造方法として、
次式(II)
上記式(III)の化合物は、次式(IV)で表される光学活性エポキシ化合物と四フッ化ケイ素とを、アミンの存在下、又はアミンとアンモニウム塩との存在下、又はアミンと水との存在下に、反応させることにより与えられる。
そして、上記式(III)で表される2個の不斉炭素を有する光学活性含フッ素環状化合物としては、特に、次の式(V)又は(VI)で表される化合物(n=1又は2)であることが好ましい(式中、R2、C* は前述の通り。)。
実施例1
滴下ロートおよびコンデンサーを付した100ml三口フラスコにt−ブチルメチルエーテル20ml、ジイソプロピルエチルアミン0.63gおよび水0.35mlを順次仕込んだ。反応器内をSiF4常圧雰囲気にした後、t−ブチルメチルエーテル15mlで希釈した1.0g(4.9mmol)の(1S,5S)−1−ベンジロキシメチル−6−オキサ−ビシクロ[3,1,0]ヘキサン(93% e.e.)を氷冷下で滴下した後、室温で1時間攪拌した。TLC(薄層クロマトグラフィー)で反応の終了を確認した後、攪拌しながら30mlの飽和KF水溶液を添加した。有機相を分液した後、飽和炭酸ナトリウム水溶液で有機相を洗浄し、硫酸ナトリウムで乾燥した。減圧下で溶媒を留去した後、シリカゲルカラムクロマトグラフィーにより精製を行い、(1S,2S)−(+)−1−ベンジロキシメチル−1−フルオロシクロペンタン−2−オール0.89gを得た。収率は81%、比旋光度[α]20 Dは38.05(c=0.94 CHCl3)であった。上記生成物の光学純度をMosher法で測定した結果、光学純度が93% e.e.であることが分かった。
1H−NMR(溶媒:CDCl3、標準物質:テトラメチルシラン)
δ 7.42〜7.24 ppm (m, 5H)
4.68 ppm (d, J=12.0 Hz, 1H)
4.55 ppm (d, J=12.0 Hz, 1H)
4.40〜4.22 ppm (m, 1H)
3.85 ppm (s, 1H)
3.73 ppm (dd, J1=16.8 Hz, J2=11.1 Hz, 1H)
2.52 ppm (d, J=4.2 Hz, 1H)
2.22〜2.02 ppm (m, 1H)
1.94〜1.53 ppm (m,5H)
13C−NMR(溶媒:CDCl3)
δ(ppm) 137.51, 128.56, 127.97, 127.78, 106.99(d, J=177.5 Hz),
77.37(d, J=25.0 Hz), 73.70, 71.44(d, J=25.2 Hz), 32.62(d, J=22.9 Hz),
32.60, 21.32;
19F−NMR(溶媒:CDCl3、標準物質:CFCl3)
δ −153.6〜−154.6 ppm (m, 1F)
実施例2
滴下ロートおよびコンデンサーを付した100ml三口フラスコにt−ブチルメチルエーテル28ml、ジイソプロピルエチルアミン0.59gおよび水0.32mlを順次仕込んだ。反応器内をSiF4常圧雰囲気にした後、t−ブチルメチルエーテル18mlで希釈した1.0g(4.6mmol)の(1S,6S)−1−ベンジロキシメチル−7−オキサ−ビシクロ[4,1,0]ヘプタン(94% e.e.)を氷冷下で滴下した後、室温で1時間攪拌した。TLCで反応の終了を確認した後、攪拌しながら30mlの飽和KF水溶液を添加した。有機相を分液した後、飽和炭酸ナトリウム水溶液で有機相を洗浄し、硫酸ナトリウムで乾燥した。減圧下で溶媒を留去した後、シリカゲルカラムクロマトグラフィーにより精製を行い、(1S,2S)−(+)−1−ベンジロキシメチル−1−フルオロシクロヘキサン−2−オール0.86gを得た。収率は79%、比旋光度[α]25 Dは15.0(c=0.97 CHCl3)であった。上記生成物の光学純度をMosher法で測定した結果、光学純度が94% e.e.であることが分かった。
1H−NMR(溶媒:CDCl3、標準物質:テトラメチルシラン)
δ 7.39〜7.25 ppm (m, 5H)
4.63 ppm (d, J=12.0 Hz, 1H)
4.58 ppm (d, J=12.0 Hz, 1H)
4.03〜3.92 ppm (m, 1H)
3.75 ppm (dd, J1=23.1 Hz, J2=11.1 Hz, 1H)
3.64 ppm (dd, J1=21.1 Hz, J2=11.1 Hz, 1H)
2.45 ppm (d, J=3.9 Hz, 1H)
2.05〜1.78 ppm (m, 2H)
1.72〜1.47 ppm (m,4H)
1.47〜1.33 ppm (m,2H)
13C−NMR(溶媒:CDCl3)
δ(ppm) 137.66, 128.43, 127.80, 127.67, 96.46(d, J=174.4 Hz),
73.67, 72.09(d, J=24.2 Hz), 70.47(d, J=27.2 Hz), 29.70(d, J=2.6 Hz),
29.11(d, J=20.4 Hz), 21.33(d, J=5.3 Hz), 20.70;
19F−NMR(溶媒:CDCl3、標準物質:CFCl3)
δ −160.1〜−161.7 ppm (m, 1F)
実施例3
滴下ロートおよびコンデンサーを付した100ml三口フラスコにt−ブチルメチルエーテル20ml、ジイソプロピルエチルアミン0.64gおよび水0.36mlを順次仕込んだ。反応器内をSiF4常圧雰囲気にした後、t−ブチルメチルエーテル20mlに溶解させた(1S,5S)−1−(2−メトキシエトキシ)メトキシメチル−6−オキサ−ビシクロ[3,1,0]ヘキサン(1.0g、4.94mmol、93% e.e.)を氷冷下で滴下した。室温で1時間攪拌した。TLCで反応の終了を確認した後、攪拌しながら30mlの飽和KF水溶液を添加した。有機相を分液した後、飽和炭酸ナトリウム水溶液で有機相を洗浄し、硫酸ナトリウムで乾燥した。減圧下で溶媒を留去した後、シリカゲルカラムクロマトグラフィーにより精製を行い、(1S,2S)−(+)−1−(2−メトキシエトキシ)メトキシメチル−1−フルオロシクロペンタン−2−オール0.88gを得た。収率は80%、比旋光度[α]20 Dは49.52(c=1.00 CHCl3)であった。上記生成物の光学純度をMosher法で測定した結果、光学純度が93% e.e.であることが分かった。
1H−NMR(溶媒:CDCl3、標準物質:テトラメチルシラン)
δ 4.79 ppm (d, J=6.9 Hz, 1H)
4.76 ppm (d, J=6.9 Hz, 1H)
4.31〜4.25 ppm (m, 1H)
3.96 ppm (d, J=11.4 Hz, 1H)
3.86 ppm (d, J=11.4 Hz, 1H)
3.83〜3.68 ppm (m, 2H)
3.59 ppm (d, J=3.3 Hz, 1H)
3.57 ppm (d, J=4.2 Hz, 1H)
3.40 ppm (s, 3H)
3.08〜3.03 ppm (m, 1H)
2.17〜2.04 ppm (m, 1H)
1.95〜1.61 ppm (m, 5H)
13C−NMR(溶媒:CDCl3)
δ(ppm) 106.31(d, J=177.3 Hz), 95.60, 75.89(d, J=32.5 Hz),
71.68, 68.47(d, J=21.9 Hz), 67.22, 58.91, 32.16, 31.78(d, J=22.3 Hz),
21.81;
19F−NMR(溶媒:CDCl3、標準物質:CFCl3)
δ −157.2〜−157.8 ppm (m, 1F)
比較例1
滴下ロートおよびコンデンサーを付した100ml三口フラスコにt−ブチルメチルエーテル20ml、ジイソプロピルエチルアミン0.62gおよび水0.37mlを順次仕込んだ。反応器内をSiF4常圧雰囲気にした後、t−ブチルメチルエーテル20mlに溶解させた(1S,5S)−1−ベンゾイロキシメチル−6−オキサ−ビシクロ[3,1,0]ヘキサン(1.0g、4.61mmol、93% e.e.)を氷冷下で滴下した後、室温で1時間攪拌した。TLCで反応の終了を確認した後、攪拌しながら30mlの飽和KF水溶液を添加した。有機相を分液した後、飽和炭酸ナトリウム水溶液で有機相を洗浄し、硫酸ナトリウムで乾燥した。減圧下で溶媒を留去した後、シリカゲルカラムクロマトグラフィーにより精製を行い、(1S,2S)−(1−フルオロ−2−ヒドロキシシクロペンチル)メチルベンゾエート0.36gを得た。その収率は33%であった。上記生成物の光学純度をMosher法で測定した結果、光学純度が57% e.e.であることが分かった。
比較例2
滴下ロートおよびコンデンサーを付した100ml三口フラスコにt−ブチルメチルエーテル20ml及び1.0g(4.9mmol)の(1S,5S)−1−ベンジロキシメチル−6−オキサ−ビシクロ[3,1,0]ヘキサン(93% e.e.)を仕込んだ。氷冷下でt−ブチルメチルエーテル10mlに溶解させた1.73g(12.2mmol)のBF3・Et2Oを滴下した後、室温で40時間攪拌した。飽和炭酸ナトリウム水溶液を添加した後、有機層を分液し、水で洗浄した。硫酸ナトリウムで乾燥した後、減圧下で溶媒を留去した。その残渣をシリカゲルカラムクロマトグラフィーにより精製した結果、(1S,2S)−(+)−1−ベンジロキシメチル−1−フルオロシクロペンタン−2−オール0.48gを得た。その収率は41%であった。上記生成物の光学純度をMosher法で測定した結果、光学純度が61% e.e.であることが分かった。
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