CN101085726A - 一种合成1,3-二取代-4-烯-1-戊酮类化合物的方法 - Google Patents
一种合成1,3-二取代-4-烯-1-戊酮类化合物的方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 31
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 30
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 29
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 26
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 14
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 12
- 239000003446 ligand Substances 0.000 claims description 12
- 239000003208 petroleum Substances 0.000 claims description 11
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 9
- 125000001624 naphthyl group Chemical group 0.000 claims description 8
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- -1 allyl β-ketoacid Chemical class 0.000 claims description 6
- 229910052741 iridium Inorganic materials 0.000 claims description 6
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 6
- 238000004809 thin layer chromatography Methods 0.000 claims description 6
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 claims description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 4
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 4
- SGUVLZREKBPKCE-UHFFFAOYSA-N 1,5-diazabicyclo[4.3.0]-non-5-ene Chemical compound C1CCN=C2CCCN21 SGUVLZREKBPKCE-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 125000001072 heteroaryl group Chemical group 0.000 claims description 3
- 125000000623 heterocyclic group Chemical group 0.000 claims description 3
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- SIOVKLKJSOKLIF-HJWRWDBZSA-N trimethylsilyl (1z)-n-trimethylsilylethanimidate Chemical compound C[Si](C)(C)OC(/C)=N\[Si](C)(C)C SIOVKLKJSOKLIF-HJWRWDBZSA-N 0.000 claims description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 2
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- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 2
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 2
- IUBQJLUDMLPAGT-UHFFFAOYSA-N potassium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([K])[Si](C)(C)C IUBQJLUDMLPAGT-UHFFFAOYSA-N 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 235000011181 potassium carbonates Nutrition 0.000 claims description 2
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 2
- 235000011009 potassium phosphates Nutrition 0.000 claims description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 2
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- YNESATAKKCNGOF-UHFFFAOYSA-N lithium bis(trimethylsilyl)amide Chemical compound [Li+].C[Si](C)(C)[N-][Si](C)(C)C YNESATAKKCNGOF-UHFFFAOYSA-N 0.000 claims 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims 1
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- 238000006243 chemical reaction Methods 0.000 abstract description 16
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- 238000006114 decarboxylation reaction Methods 0.000 description 8
- 239000010409 thin film Substances 0.000 description 8
- 238000005804 alkylation reaction Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
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- 238000006467 substitution reaction Methods 0.000 description 5
- 239000012046 mixed solvent Substances 0.000 description 4
- 239000012454 non-polar solvent Substances 0.000 description 4
- 239000002798 polar solvent Substances 0.000 description 4
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 238000006579 Tsuji-Trost allylation reaction Methods 0.000 description 3
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- 239000007787 solid Substances 0.000 description 3
- WCCDHASFOUNIRC-UHFFFAOYSA-N 1-(4-methylphenyl)-3-phenylpent-4-en-1-one Chemical compound CC1=CC=C(C=C1)C(=O)CC(C=C)C2=CC=CC=C2 WCCDHASFOUNIRC-UHFFFAOYSA-N 0.000 description 2
- RSMCEJVFEAPFQZ-UHFFFAOYSA-N 3-(4-methoxyphenyl)-1-phenylpent-4-en-1-one Chemical compound COC1=CC=C(C=C1)C(CC(=O)C2=CC=CC=C2)C=C RSMCEJVFEAPFQZ-UHFFFAOYSA-N 0.000 description 2
- XESHNLSKAWPODO-UHFFFAOYSA-N 3-methyl-1-phenylpent-4-en-1-one Chemical compound C=CC(C)CC(=O)C1=CC=CC=C1 XESHNLSKAWPODO-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- OAYLNYINCPYISS-UHFFFAOYSA-N ethyl acetate;hexane Chemical compound CCCCCC.CCOC(C)=O OAYLNYINCPYISS-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ATFZHGZHQXPYJC-UHFFFAOYSA-N 1-(4-methoxyphenyl)-3-(4-methylphenyl)pent-4-en-1-one Chemical compound CC1=CC=C(C=C1)C(CC(=O)C2=CC=C(C=C2)OC)C=C ATFZHGZHQXPYJC-UHFFFAOYSA-N 0.000 description 1
- QUQKYRSMYYPTOP-UHFFFAOYSA-N 1-(4-methoxyphenyl)-3-phenylpent-4-en-1-one Chemical compound C1=CC(OC)=CC=C1C(=O)CC(C=C)C1=CC=CC=C1 QUQKYRSMYYPTOP-UHFFFAOYSA-N 0.000 description 1
- DCVHYUASHSCULG-UHFFFAOYSA-N 1-naphthalen-2-yl-3-phenylpent-4-en-1-one Chemical compound C=CC(CC(=O)c1ccc2ccccc2c1)c1ccccc1 DCVHYUASHSCULG-UHFFFAOYSA-N 0.000 description 1
- PQXKWPLDPFFDJP-UHFFFAOYSA-N 2,3-dimethyloxirane Chemical group CC1OC1C PQXKWPLDPFFDJP-UHFFFAOYSA-N 0.000 description 1
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 description 1
- WXXFEUYWGGLHFK-UHFFFAOYSA-N 3-(3-methoxyphenyl)-1-phenylpent-4-en-1-one Chemical compound COc1cccc(c1)C(CC(=O)c1ccccc1)C=C WXXFEUYWGGLHFK-UHFFFAOYSA-N 0.000 description 1
- AKAWAVWZOWPMHK-UHFFFAOYSA-N 3-(4-fluorophenyl)-1-phenylpent-4-en-1-one Chemical compound C1=CC(F)=CC=C1C(C=C)CC(=O)C1=CC=CC=C1 AKAWAVWZOWPMHK-UHFFFAOYSA-N 0.000 description 1
- ILUYJHCMKKIRSL-UHFFFAOYSA-N 3-(4-methylphenyl)-1-phenylpent-4-en-1-one Chemical compound Cc1ccc(cc1)C(CC(=O)c1ccccc1)C=C ILUYJHCMKKIRSL-UHFFFAOYSA-N 0.000 description 1
- AZWRCWWXUUJNAH-UHFFFAOYSA-N 3-ethenyl-1-phenyloctan-1-one Chemical compound CCCCCC(CC(=O)C1=CC=CC=C1)C=C AZWRCWWXUUJNAH-UHFFFAOYSA-N 0.000 description 1
- YBQQDHIDPOQUNW-UHFFFAOYSA-N C=1C=COC=1C(C=C)CC(=O)C1=CC=CC=C1 Chemical compound C=1C=COC=1C(C=C)CC(=O)C1=CC=CC=C1 YBQQDHIDPOQUNW-UHFFFAOYSA-N 0.000 description 1
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- BKFMTSFTLSYCKS-UHFFFAOYSA-N DCMBSA Natural products CC1=C(Cl)C=C(S(O)(=O)=O)C=C1Cl BKFMTSFTLSYCKS-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
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- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical class CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 1
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- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明提供了一种合成1,3-二取代-4-烯-1-戊酮类化合物的方法,是一种有效的以铱络合物作为催化剂,由烯丙基烯丙基β-酮酸酯高区域及高对映选择性地合成1,3-二取代-4-烯-1-戊酮类化合物的方法。与现有方法相比,该方法的催化剂相对易得、催化活性高、反应条件温和、底物适用范围广、产物区域和对映选择性高。
Description
技术领域
本发明涉及一种由金属依络合物催化的烯丙基β-酮酸酯脱羧烯丙基烷基化反应,该反应可以实现高效率和高区域及对映选择性地合成1,3-二取代-4-烯-1-戊酮类化合物。
背景技术
过渡金属催化的不对称烯丙基烷基化反应是碳碳键形成的最为重要的反应之一,在有机合成中占有重要的地位[(a)Trost,B.M.D.;Van Vranken,L.Chem.Rev.1996,96,395-422;(b)Trost,B.M.Acc.Chem.Res.2002,35,695-705;(c)Trost,B.M.;Crawley,M.L.Chem.Rev.2003,103,2921-2944.]。近年来,研究发现铱、钼、钨、铑等过渡金属催化的烯丙基取代反应有着自身的特点,例如对于含末端烯烃的烯丙基底物可以高区域选择性地生成支链产物。对于在金属铱催化的烯丙基取代反应的研究近年来也取得了许多进展[(a)Helmchen,G.;Lipowsky,G.;Miller,N.Angew.Chem.Int.Ed.2004,43,4595-4597.(b)Hartwig,J.F.;Shu,C.Angew.Chem.Int.Ed.2004,43,4794-4797.(c)Hartwig,J.F.;Leitner,A.;Shekhar,S.;Pouy,M.J.J.Am.Chem.Soc.2005,127,15506-15514.(d)Hartwig,J.F.;Shekhar,S.;Trantow,B.;Leitner,A.J.Am.Chem.Soc.2006,128,11770-11771.]。尽管过渡金属催化的烯丙基取代反应近年来取得了很好的结果,但由于反应中通常需要强碱的加入,对其底物的适用范围有一定的限制。而过渡金属催化的脱羧烯丙基取代反应则为解决以上问题提供了可能性。早在80年代Tsuji就报道了钯催化的脱羧烯丙基烷基化反应,但直到近年来高对映选择性的烯丙基脱羧烷基化反应才得以实现。但由于该领域研究开展相对较晚,目前还主要集中在钯催化的不对称脱羧烯丙基烷基化反应中。在这一领域中,我们发展了由铱络合物催化烯丙基β-酮酸酯脱羧的烯丙基烷基化反应,该反应可以实现高区域和高对映选择性地合成1,3-二取代-4-烯-1-戊酮类化合物。而这一类化合物可用来合成大量的具有生物活性的天然和非天然产物的中间体[(a)Enzell,C.;Erdtman,H.Tetrahedron 1958,4,361.(b)Matsuo,A.;Yuki,S.;Nakayama,M.J.Chem.Soc.,Chem.Commun.1981,864.]。2005年Graening和Hartwig报道了铱络合物催化烯醇硅醚和烯丙醇碳酸酯,在CsF和ZnF2做添加剂的条件下制备1,3-二取代-4-烯-1-戊酮类化合物[Hartwig,J.F.;Craening,T.J.Am.Chem.Soc.2005,127,17192-17193.],但由于使用到了不稳定的烯醇硅醚且要用到添加剂,限制了该反应的应用。我们发展的由烯丙基β-酮酸酯在铱络合物催化下发生脱羧的烯丙基烷基化反应,对合成此类化合物有着重要的意义。
发明内容
本发明的目的是提供一种有效的合成1,3-二取代-4-烯-1-戊酮类化合物的方法。
本发明的方法是一种有效的由烯丙基β-酮酸酯类化合物合成1,3-二取代-4-烯-1-戊酮类化合物的方法。
本发明的方法是一种有效的以铱络合物作为催化剂,由烯丙基β-酮酸酯类化合物合成1,3-二取代-4-烯-1-戊酮类化合物的方法。
本发明的方法是一种有效的由手性铱络合物作为催化剂,由烯丙基β-酮酸酯类化合物合成1,3-二取代-4-烯-1-戊酮类化合物的方法。
本发明的方法所合成的1,3-二取代-4-烯-1-戊酮类化合物分子通式是:
其中R1或R2任意选自C1-C16的烷基、C3-C16的环烷基;C4-C10的含N、O或S的杂环基或者杂芳基、芳基、R取代的芳基;所述的芳基是苯基或萘基;R为C1-C4的烷基、C1-C4的全氟烷基、卤素或C1-C4的烷氧基。
本发明的1,3-二取代-4-烯-1-戊酮类化合物是以烯丙基β-酮酸酯类化合物为原料,在有机溶剂的存在下,以[Ir(COD)Cl]2与手性配体作用生成的铱络合物作为催化剂,在碱的作用下反应制得,可用下式表示:
R2任意选自C1-C16的烷基、C3-C16的环烷基;C4-C10的含N、O或S的杂环基或者杂芳基、芳基、R取代的芳基;所述的芳基是苯基或萘基;R为C1-C4的烷基、C1-C4的全氟烷基、卤素或C1-C4的烷氧基;
配体结构式(为任意光学纯的结构,不受图示所限)为:
所述的碱是三乙胺、1,8-二氮杂二环[5,4,0]十一碳-7-烯、1,5-二氮杂二环[4,3,0]壬-5-烯、N,O-双(三甲基硅基)乙酰胺、碳酸铯、碳酸钾,磷酸钾、醋酸钾、二(三甲基硅基)氨基钠、二(三甲基硅基)氨基锂、二(三甲基硅基)氨基钾、 叔丁醇钾、叔丁醇钠或者二异丙基乙基胺。
所述的烯丙基β-酮酸酯类化合物、[Ir(COD)Cl]2、配体、碱的摩尔比为1∶0.01-0.1∶0.02-0.2∶0-2,推荐反应的摩尔比为:烯丙基β-酮酸酯类化合物、[Ir(COD)Cl]2、配体、碱的摩尔比为1∶0.02-0.05∶0.04-0.1∶1-2。反应在温度为0℃至120℃,推荐反应温度为:25℃至75℃。反应时间为2小时-23小时。
本发明方法中,所述水为蒸馏水。所述有机溶剂可以是极性或非极性溶剂。如苯、四氯化碳、石油醚、四氢呋喃、二甲基甲酰胺、乙醚、二氯甲烷、三氯甲烷、甲苯、二甲苯、环己烷、正己烷、正庚烷、二烷六环、乙腈等。
采用本发明方法所得产物1,3-二取代-4-烯-1-戊酮类化合物可以经过重结晶,薄层层析,柱层析减压蒸馏等方法加以分离。如用重结晶的方法,推荐溶剂为极性溶剂与非极性溶剂的混合溶剂。推荐溶剂可为二氯甲烷—正己烷,异丙醇—石油醚,乙酸乙酯—石油醚,乙酸乙酯—正己烷,异丙醇—乙酸乙酯—石油醚等混合溶剂。用薄层层析和柱层析方法,所用的展开剂为极性溶剂与非极性溶剂的混合溶剂。推荐溶剂可为异丙醇—石油醚,乙酸乙酯—石油醚,乙酸乙酯—正己烷,异丙醇—乙酸乙酯—石油醚等混合溶剂,其体积比可以分别是:极性溶剂∶非极性溶剂=1∶0.1-500。例如:乙酸乙酯∶石油醚=1∶0.1-50,异丙醇∶石油醚=1∶0.1-500。
本发明提供了一种有效的由铱络合物作为催化剂,由烯丙基β-酮酸酯类化合物高区域和高对映选择性地合成1,3-二取代-4-烯-1-戊酮类化合物的方法;提供了制备多种1,3-二取代-4-烯-1-戊酮类化合物的方法。与现有方法相比,该方法可适用于多种不同类型的烯丙基β-酮酸酯类化合物,反应条件温和,操作简便。另外,反应中除碱外无需加入任何添加剂。且反应的产率也较好(一般为52%-83%),区域选择性高(一般为80∶20->99∶1),对映选择性高(一般为89%-96%)。
具体实施方式
通过下述实施例将有助于理解本发明,但并不限制本发明的内容。
实施例1:在铱络合物催化下发生脱羧的烯丙基烷基化反应的温度和溶剂的研究:
其中,mol指摩尔,base指碱。
序号 | 溶剂 | 碱 | 时间(h) | 温度(℃) | 产率(%) | 3a/4a | ee(%) |
1 | Et2O | DBU | 16 | 回流 | 66 | 99∶1 | 95 |
2 | THF | DBU | 16 | 回流 | 80 | 99∶1 | 94 |
3 | DME | DBU | 16 | 75 | 75 | 98∶2 | 94 |
4 | Toluene | DBU | 16 | 75 | 61 | 98∶2 | 85 |
5 | DCM | DBU | 20 | 25 | 67 | >99∶1 | 96 |
6 | DCM | DBU | 16 | 回流 | 83 | 99∶1 | 95 |
7 | DCM | 无 | 24 | 回流 | 41 | >99∶1 | 84 |
8 | DCM | BSA/KOAc | 24 | 回流 | 54 | 99∶1 | 94 |
9 | DCM | DBN | 8 | 回流 | 75 | 99∶1 | 94 |
10 | DCM | DABCO | 8 | 回流 | 80 | 99∶1 | 94 |
11 | DCM | Cs2CO3 | 18 | 回流 | 62 | 99∶1 | 93 |
12 | DCM | KOAc | 23 | 回流 | 73 | 99∶1 | 93 |
13 | DCM | Et3N | 22 | 回流 | 84 | 98∶2 | 93 |
14 | DCM | K2CO3 | 24 | 回流 | 62 | 99∶1 | 92 |
其中,THF是四氢呋喃,Et2O是乙醚,DME是二甲基乙二醚,Toluene是甲苯,DCM是二氯甲烷,DBU是1,8-二氮杂二环[5,4,0]十一碳-7-烯,DBN是1,5-二氮杂二环[4,3,0]壬-5-烯,BSA是N,O-双(三甲基硅基)乙酰胺。
实施例2:不同配体在铱络合物催化下发生脱羧的烯丙基烷基化反应的研究:
1a R3,R4=Ph 1dR3,R4=Ph
1bR3,R4=2-Naphthyl
1c R3,R4=2-MeO-Ph
其中Ph是苯基,Naphthyl是萘基,MeO是甲氧基。
序号 | 配体 | 时间(h) | 产率(%)[b] | 3a/4a | ee(%) |
1 | 1a | 16 | 83 | 99∶1 | 95 |
2 | 1b | 36 | 21 | 99∶1 | 93 |
3 | 1c | 24 | 65 | >99∶1 | 96 |
4 | 1d | 36 | 45 | 94∶6 | 70 |
实施例2:烯丙基β-酮酸酯在铱络合物催化下发生脱羧的烯丙基烷基化反应
在一干燥的反应管中依次加入[Ir(COD)Cl]2(0.004mmol)、手性配体(0.008mmol)、正丙胺(0.5mL)和THF(0.5mL),60℃下反应20分钟,然后自然冷至室温后油泵抽干。再依次向反应管中加入β-酮酸酯(0.2mmol)、DBU(0.4mmol)、DCM(2mL),加热回流反应。反应结束后,减压除去溶剂后残留物柱层析分离得产物(乙酸乙酯/石油醚=1/100,v/v)。
P1:1,3-二苯基-4-烯-1-戊酮(1,3-Diphenylpent-4-en-1-one)
无色液体:83%产率,95%ee[手性柱OD-H,正己烷/异丙醇l=98/2,v=0.5ml□min-1,λ=254nm,t(minor)=9.77分,t(major)=10.54分];[α]D 20=+2.6°(c=1.02,CHCl3).1H NMR(300MHz,CDCl3)δ3.36(dd,A of ABX,JAB=16.8Hz,JAX=6.9Hz,1H),3.45(dd,B of ABX,JAB=16.8Hz,JBX=7.5Hz,1H),4.14(q,J=6.9Hz,1H),5.04(dd,J=17.1,10.2Hz,2H),6.03(ddd,J=17.4,10.5,6.9Hz,1H),5.99-6.11(m,1H),7.18-7.33(m,5H),7.41-7.46(m,2H),7.52-7.57(m,1H),7.91-7.94(m,2H);13C NMR(75MHz,CHCl3)δ43.8,44.3,114.6,126.4,127.6,127.9,128.4,129.9,132.9,136.9,140.5,143.0,198.1.
P2:1-苯基-3-(4-甲基苯基)-4-烯-1-戊酮
(3-(4-Methylphenyl)-1-phenylpent-4-en-1-one)
无色液体,75%产率,95%ee[手性柱OD-H,正己烷/异丙醇=99.5/0.5,v=1.0ml□min-1,λ=214nm,t(minor)=10.06分,t(major)=11.34分];[α]D 20=+5.3°(c=1.63,CHCl3).1H NMR(300MHz,CDCl3)δ 2.30(s,3H),3.33(dd,A of ABX,JAB=16.5Hz,JAX=6.6Hz,1H),3.42(dd,B of ABX,JAB=16.5Hz,JBX=7.8Hz,1H),4.10(q,J=7.5Hz,1H),5.06(dd,J=17.7,10.5Hz,2H),6.06(ddd,J=17.1,10.2,6.9Hz,1H),7.09-7.22(m,4H),7.40-7.45(m,2H),7.50-7.55(m,1H),7.91-7.94(m,2H);13C NMR(75MHz,CDCL3)δ21.0,44.0,44.1,114.5,127.5,128.0,128.5,129.2,133.0,136.0,137.0,140.1,140.8,198.3;IR(thin film)∶vmax(cm-1)=2924,1687,1638,1597,1581,1513,1449,1407,1261,1203,990,917,817,754,690;MS(EI,m/z,rel.intensity)250(M+,3),105(100);HRMS(EI),C18H18O(M+):计算值250.1358实测值:250.1351.
P3:1-苯基-3-(4-甲氧基苯基)-4-烯-1-戊酮
(3-(4-Methoxyphenyl)-1-phenylpent-4-en-1-one)
白色固体,70%产率,95%ee[手性柱OD-H,正己烷/异丙醇=99.75/0.25,v=0.6ml□min-1,λ=230nm,t(major)=63.52分,t(minor)=70.58min];[α]D 20=-2.6°(c=1.34,CHCl3).1H NMR(300MHz,CDCl3)δ3.33(dd,A of ABX,JAB=16.5Hz,JAX=6.9 Hz,1H),3.41(dd,B of ABX,JAB=16.5Hz,JBX=7.5Hz,1H),3.78(s,3H),4.09(q,J=7.2Hz,1H),5.03(dd,J=17.1,9.9Hz,2H),6.03(ddd,J=17.1,10.2,6.6Hz,1H),6.83-7.19(m,4H),7.42-7.47(m,2H),7.53-7.58(m,1H),7.92-7.94(m,2H);13C NMR(75MHz,CDCl3)δ43.6,44.0,55.2,113.9,114.3,128.0,128.5,128.6,133.0,135.1,137.0,140.9,158.1,198.4.
P4:1-苯基-3-(3-甲氧基苯基)-4-烯-1-戊酮
(3-(3-Methoxyphenyl)-1-phenylpent-4-en-1-one)
无色液体,59%产率,93%ee[手性柱OD-H,正己烷/异丙醇=99/1,v=0.6ml□min-1,λ=214nm,t(minor)=40.50分,t(major)=49.56分];[α]D 20=+7.9°(c=1.17,CHCl3).1H NMR(300MHz,CDCl3)δ3.35(dd,A ofABX,JAB=16.8Hz,JAX=6.6Hz,1H),3.44(dd,B ofABX,JAB=16.8Hz,JBX=7.8 Hz,1H),3.79(s,3H),4.12(q,J=6.6Hz,1H),5.05(dd,J=17.7,10.2Hz,2H),6.03(ddd,J=17.4,10.8,6.9Hz,1H),6.73-6.88(m,3H),7.20-7.25(m,1H),7.42-7.47(m,2H),7.53-7.58(m,1H),7.92-7.95(m,2H);13C NMR(75MHz,CDCl3)δ43.9,44.5,55.1,111.6,113.6,114.8,120.0,128.0,128.6,129.5,133.0,137.0,140.4,144.8,159.7,198.2;IR(thin film)∶vmax(cm-1)=3003,2836,1687,1638,1599,1584,1489,1450,1287,1263,1047,916,782,759,691;MS(EI,m/z,rel.intensity)266(M+,8),105(100);HRMS(EI),C18H18O2(M+):计算值266.1307实测值:266.1302.
P5:1-苯基-3-(4-三氟甲氧基苯基)-4-烯-1-戊酮
(1-Phenyl-3-(4-(trifluoromethyl)phenyl)pent-4-e\-1-one)
白色固体,71%产率,91%ee[手性柱OD-H,正己烷/异丙醇=99.5/0.5,v=1.0ml□min-1,λ=214nm,t(minor)=12.84分,t(major)=14.68分];[α]D 20=+13.7°(c=1.03,CHCl3).1H NMR(300MHz,CDCl3)δ3.39(dd,A of ABX,JAB=17.4Hz,JAX=6.9Hz,1H),3.47(dd,B of ABX,JAB=17.4Hz,JBX=6.9Hz,1H),4.22(q,J=7.2Hz,1H),5.08(dd,J=17.1,10.2Hz,2H),6.06(ddd,J=17.1,10.2,6.9Hz,1H),7.34-7.48(m,4H),7.54-7.57(m,3H),7.91-7.94(m,2H);13C NMR(75MHz,CDCl3)δ43.6,44.1,115.5,125.4,125.5,125.5,128.0,128.1,128.6,133.2,136.8,139.8,147.2,197.6.
P6:1-苯基-3-(4-氟苯基)-4-烯-1-戊酮
(3-(4-Fluorophenyl)-1-phenylpent-4-en-1-one)
无色液体,67%产率,94%ee[手性柱OD-H,正己烷/异丙醇=99.5/0.5,v=1.0ml□min-1,λ=214nm,t(minor)=12.56分,t(major)=13.39分];[α]D 20=+4.8°(c=1.60,CHCl3).1H NMR(300MHz,CDCl3)δ 3.33(dd,A of ABX,JAB=16.8Hz,JAX=6.9Hz,1H),3.42(dd,B of ABX,JAB=16.8Hz,JBX=7.5Hz,1H),4.13(q,J=6.9Hz,1H),5.04(dd,J=17.7,10.2Hz,2H),6.06(ddd,J=17.1,10.2,6.6Hz,1H),6.95-7.00(m,2H),7.17-7.25(m,2H),7.42-7.58(m,3H),7.91-7.93(m,2H);13C NMR(75MHz,CDCl3)δ43.6,43.9,114.7,115.1,115.4,128.0,128.6,129.1,129.2,133.1,136.9,138.6,140.5,163.1,198.0;IR(thin film)∶vmax(cm-1)=1687,1638,1599,1581,1509,1449,1361,1223,1159,912,834,734,690;MS(EI,m/z,rel.intensity)254(M+,2),105(100);HRMS(EI),C17H15OF(M+):计算值254.1107
实测值:254.1110.
P7:1-苯基-3-(2-呋喃基)-4-烯-1-戊酮(3-(Furan-2-yl)-1-phenylpent-4-en-1-one)
无色液体,73%产率,94%ee[手性柱OD-H,正己烷/异丙醇=99.8/0.2,v=0.5ml□min-1,λ=230nm,t(minor)=42.98分,t(major)=45.78分];[α]D 20=+53.2°(c=1.87,CHCl3).1H NMR(300MHz,CDCl3)δ3.32(dd,A of ABX,JAB=16.8Hz,JAX=6.3Hz,1H),3.49(dd,B of ABX,JAB=16.8Hz,JBX=7.5Hz,1H),4.23(q,J=7.2Hz,1H),5.11(dd,J=17.4,10.2Hz,2H),5.97(ddd,J=17.1,9.9,7.2Hz,1H),6.07(d,J=3.3Hz,1H),6.28(dd,J=3.3Hz,1H),7.31-7.32(m,1 H),7.42-7.48(m,2H),7.53-7.58 (m,1H),7.94-7.98(m,2H);13C NMR(75MHz,CDCl3)δ38.4,41.8,105.4,110.2,116.1,128.1,128.6,133.1,136.8,137.7,141.4,155.8,197.7.
P8:1-(4-甲氧基苯基)-3-(4-甲基苯基)-4-烯-1-戊酮
(1-(4-Methoxyphenyl)-3-p-tolylpent-4-en-1-one)
无色液体,58%产率,96%ee[手性柱OD-H,正己烷/异丙醇=99/1,v=0.6ml□min-1,λ=214nm,t(minor)=21.77分,t(major)=25.70分];[α]D 20=+12.8°(c=1.44,CHCl3).1H NMR(300MHz,CDCl3)δ2.30(s,3H),3.28(dd,AofABX,JAB=16.5Hz,JAX=6.6Hz,1H),3.37(dd,B of ABX,JAB=16.5Hz,JBX=7.5Hz,1H),3.84(s,3H),4.09(q,J=6.9Hz,1H),5.02(dd,J=16.8,10.2Hz,2H),6.03(ddd,J=16.8,9.9,6.6Hz,1H),6.89-6.92(m,2H),7.09-7.17(m,4H),7.91-7.93(m,2H);13C NMR(75MHz,CDCl3)δ21.0,43.6,44.2,55.4,113.6,114.4,127.5,129.2,130.1,130.3,136.0,10.2,140.9,163.3,196.9;IR(thin film)∶vmax(cm-1)=3080,1673,1604,1578,1512,1421,1401,1360,1312,1251,1174,1109,1023,990,906,839,811,608;MS(EI,m/z,rel.intensity)280(M+,1),135(100);HRMS(EI),C19H20O2(M+):计算值280.1463:实测值280.1465.
P9:1-(4-甲氧基苯基)-3-苯基-4-烯-1-戊酮
(1-(4-Methoxyphenyl)-3-phenylpent-4-en-1-one)
无色液体,67%产率,95%ee[手性柱OD-H,正己烷/异丙醇=99/1,v=0.6ml□min-1,λ=214nm,t(minor)=34.26分,t(major)=39.13分];[α]D 20=+8.4°(c=1.38,CHCl3).1H NMR(300MHz,CDCl3)δ3.30(dd,A of ABX,JAB=16.2Hz,JAX=6.9Hz,1H),3.39(dd,B of ABX,JAB=16.2Hz,JBX=8.1Hz,1H),3.85(s,3H),4.13(q,J=7.2Hz,1H),5.04(dd,J=16.8,10.5Hz,2H),6.05(ddd,J=16.8,10.2,6.6Hz,1H),6.89-6.94(m,2H),7.17-7.33(m,5H),7.91-7.94(m,2H);13CNMR(75 MHz,CDCl3)δ43.6,44.6,55.4,113.6,114.6,126.4,127.7,128.5,130.1,130.3,140.7,143.2,163.4,196.8;IR(thin film)∶vmax(cm-1)=2961,1667,1637,1604,1575,1510,1453,1421,1261,1212,1174,1108,1028,989,924,844,814,758,700,600,581;MS(EI,m/z,rel.intensity)266(M+,1),135(100);HRMS(EI),C18H18O2(M+):计算值266.1307实测值:266.1301.
P10:1-(4-甲基苯基)-3-苯基-4-烯-1-戊酮
(3-Phenyl-1-p-tolylpent-4-en-1-one)
无色液体,62%产率,93%ee[手性柱OD-H,正己烷/异丙醇=99.75/0.25,v=0.6 ml□min-1,λ=214nm,t(minor)=39.07分,t(major)=44.27分];[α]D 20=+1.1°(c=2.04,CHCl3).1H NMR(300MHz,CDCl3)δ 2.39(s,3H),3.32(dd,A ofABX,JAB=16.8Hz,JAX=6.6Hz,1H),3.42(dd,B of ABX,JAB=16.8Hz,JBX=7.8Hz,1H),4.13(q,J=7.2Hz,1H),5.04(dd,J=17.1,10.2Hz,2H),6.04(ddd,J=16.8,10.2,7.2Hz,1H),7.17-7.33(m,7H),7.82-7.85(m,2H);13C NMR(75MHz,CDCl3)δ 21.6,43.8,44.5,114.6,126.5,127.7,128.2,128.5,129.2,134.5,140.7,143.2,143.8,197.8;IR(thin film)∶vmax(cm-1)=3030,1684,1638,1607,1493,1453,1408,1263,1203,1182,994,917,808,740,701;MS(EI,m/z,rel.intensity)250(M+,1),119(100);HRMS(EI),C18H18O(M+):计算值250.1358实测值:250.1357.
P11:1-(2-萘基)-3-苯基-4-烯-1-戊酮
(1-(Naphthalen-2-yl)-3-phenylpent-4-en-1-one)
无色液体,71%产率,93%ee[手性柱OD-H,正己烷/异丙醇=99.5/0.5,v=1.0ml□min-1,λ=214nm,t(minor)=26.31分,t(major)=28.45分];[α]D 20=+36.6°(c=1.64,CHCl3).1H NMR(300 MHz,CDCl3)δ3.48(dd,A ofABX,JAB=16.5Hz,JAX=6.3Hz,1H),3.58(dd,B of ABX,JAB=16.5Hz,JBX=7.5Hz,1H),4.20(q,J=6.6Hz,1H),5.07(dd,J=16.8,10.5Hz,2H),6.09(ddd,J=16.8,10.2,6.9Hz,1H),7.17-7.32(m,5H),7.51-7.61(m,2H),7.85-8.01(m,4H),8.43(s,1H);13CNMR(75MHz,CDCl3)δ44.0,44.6,114.8,123.8,126.5,126.7,127.7,128.4,128.6,129.5,129.6,129.7,132.4,134.4,135.5,140.6,143.1;IR(thin film)∶vmax(cm-1)=3062,2886,1682,1625,1594,1492,1450,1370,1170,1128,962,868,818,746,701,520,477;MS(EI,m/z,rel.intensity)286(M+,4),155(100);HRMS(EI),C21H18O(M+):计算值286.1358实测值:286.1361.
P12:1-苯基-3-甲基-4-烯-1-戊酮(3-Methyl-1-phenylpent-4-en-1-one)
无色液体,61%产率,90%ee[手性柱AD-H,正己烷/异丙醇=99.75/0.25,v=0.6ml□min-1,λ=230nm,t(major)=19.32,分t(minor)=20.78分];[α]D 20=+8.0°(c=0.19,CHCl3).1H NMR(300MHz,CDCl3)δ 1.10(d,J=6.0Hz,3H),2.86-3.08(m,3H),5.00(dd,J=17.1,10.5Hz,2H),5.85(ddd,J=16.8,10.2,6.3Hz,1H),7.44-7.58(m,3H),7.94-7.97(m,2H);13C NMR(75MHz,CDCl3)δ19.8,33.5,45.1,113.0,128.1,128.5,132.9,137.2,143.0,199.3.
P13:1-苯基-3-正戊基-4-烯-1-戊酮(1-Phenyl-3-vinyloctan-1-one)
无色液体,52%yield,89%ee[手性柱OD-H,正己烷/异丙醇=99.75/0.25,v=0.5ml□min-1,λ=230nm,t(major)=21.47分,t(minor)=24.76min];[α]D 20=-4.6°(c=0.40,CHCl3).1H NMR(300MHz,CDCl3)δ0.87(t,J=6.9Hz,3H),1.27-1.33(m,8H),2.60-2.77(m,1H),2.96-3.06(m,2H),4.99(dd,J=17.1,10.8Hz,2H),5.68(ddd,J=17.1,108,8,4Hz,1H),7.43-7.48(m,2H),7.53-7.58(m,1H),7.92-7.98(m,2H);13C NMR(75MHz,CDCl3)δ14.1,22.6,26.8,31.8,34.7,39.8,43.9,114.7,128.0,128.1,128.5,132.9,141.6,199.6;IR(thin film)∶vmax(cm-1)=3067,2958,2929,2858,1687,1598,1449,1598,1582,1449,1359,1276,1210,1070,915,752,690,659;MS(EI,m/z,rel.intensity)230(M+,2),105(100);HRMS(EI),C16H22O(M+):计算值230.1671实测值:230.1667.
P14:1,3-二苯基-4-烯-1-戊酮(1,3-Diphenylpent-4-en-1-one)
无色液体:81%产率,95%ee;1H NMR(300MHz,CDCl3)δ 3.36(dd,A of ABX,JAB=16.8Hz,JAX=6.9Hz,1H),3.45(dd,B ofABX,JAB=16.8Hz,JBX=7.5Hz,1H),4.14(q,J=6.9Hz,1H),5.04(dd,J=17.1,10.2Hz,2H),6.03(ddd,J=17.4,10.5,6.9Hz,1H),5.99-6.11(m,1H),7.18-7.33(m,5H),7.41-7.46(m,2H),7.52-7.57(m,1H),7.91-7.94(m,2H);13C NMR(75MHz,CHCl3)δ43.8,44.3,114.6,126.4,127.6,127.9,128.4,129.9,132.9,136.9,140.5,143.0,198.1.
P15:1-苯基-3-(4-甲氧基苯基)-4-烯-1-戊酮
(3-(4-Methoxyphenyl)-1-phenylpent-4-en-1-one)
白色固体,72%yield,94%ee;1H NMR(300MHz,CDCl3)δ3.33(dd,A of ABX,JAB=16.5 Hz,JAX=6.9Hz,1H),3.41(dd,B of ABX,JAB=16.5Hz,JBX=7.5Hz,1H),3.78(s,3H),4.09(q,J=7.2Hz,1H),5.03(dd,J=17.1,9.9Hz,2H),6.03(ddd,J=17.1,10.2,6.6Hz,1H),6.83-7.19(m,4H),7.42-7.47(m,2H),7.53-7.58(m,1H),7.92-7.94(m,2H);13C NMR(75MHz,CDCl3)δ43.6,44.0,55.2,113.9,114.3,128.0,128.5,128.6,133.0,135.1,137.0,140.9,158.1,198.4.
P16:1-(4-甲基苯基)-3-苯基-4-烯-1-戊酮
(3-Phenyl-1-p-tolylpent-4-en-1-one)
无色液体,65%产率,94%ee,1H NMR(300MHz,CDCl3)δ2.39(s,3H),3.32(dd,A of ABX,JAB=16.8 Hz,JAX=6.6Hz,1H),3.42(dd,B of ABX,JAB=16.8Hz,JBX=7.8Hz,1H),4.13(q,J=7.2Hz,1H),5.04(dd,J=17.1,10.2Hz,2H),6.04(ddd,J=16.8,10.2,7.2Hz,1H),7.17-7.33(m,7H),7.82-7.85(m,2H);13C NMR(75MHz,CDCl3)δ21.6,43.8,44.5,114.6,126.5,127.7,128.2,128.5,129.2,134.5,140.7,143.2,143.8,197.8.
P17:1-苯基-3-甲基-4-烯-1-戊酮(3-Methyl-1-phenylpent-4-en-1-one)
无色液体,62%产率,90%ee,1H NMR(300MHz,CDCl3)δ 1.10(d,J=6.0Hz,3H),2.86-3.08(m,3H),5.00(dd,J=17.1,10.5Hz,2H),5.85(ddd,J=16.8,10.2,6.3Hz,1H),7.44-7.58(m,3H),7.94-7.97(m,2H);13C NMR(75MHz,CDCl3)δ19.8,33.5,45.1,113.0,128.1,128.5,132.9,137.2,143.0,199.3.
Claims (5)
1、一种合成1,3-二取代-4-烯-1-戊酮类化合物的方法,其特征是在有机溶剂的存在下和0℃~120℃下,以烯丙基β-酮酸酯类化合物为原料,以[Ir(COD)Cl]2与配体作用生成的铱络合物作为催化剂,在碱的作用下反应3-22小时制得1,3-二取代-4-烯-1-戊酮类化合物;
上述的烯丙基β-酮酸酯类化合物、[Ir(COD)Cl]2、配体、碱的摩尔比为1∶0.01-0.1∶0.02-0.2∶0-2;
所述的配体是具有如下结构式的光学纯的配体:
所述的碱是三乙胺、1,8-二氮杂二环[5,4,0]十一碳-7-烯、1,5-二氮杂二环[4,3,0]壬-5-烯、N,O-双(三甲基硅基)乙酰胺、碳酸铯、碳酸钾,磷酸钾、醋酸钾二(三甲基硅基)氨基钠、二(三甲基硅基)氨基锂、二(三甲基硅基)氨基钾、叔丁醇钾、叔丁醇钠或者二异丙基乙基胺;
其中R1或R2任意选自C1-C16的烷基、C3-C16的环烷基;C4-C10的含N、O或S的杂环基或者杂芳基、芳基、R取代的芳基;所述的芳基是苯基或萘基;R为C1-C4的烷基、C1-C4的全氟烷基、卤素或C1-C4的烷氧基。
R3或R4任意选自C3-C16的环烷基;苯基、萘基、C1-C4的烷氧基取代的苯基或C1-C4的烷氧基取代的萘基。
2、如权利要求1所述的合成1,3-二取代-4-烯-1-戊酮类化合物的方法,其特征是所述的烯丙基β-酮酸酯类化合物、[Ir(COD)Cl]2、配体、碱的摩尔比为1∶0.02-0.05 ∶ 0.04-0.1∶1-2。
4、如权利要求1所述的合成1,3-二取代-4-烯-1-戊酮化合物的方法,其特征是所述有机溶剂是苯、四氯化碳、石油醚、四氢呋喃、二甲基甲酰胺、乙醚、二氯甲烷、三氯甲烷、甲苯、二甲苯、环己烷、正己烷、正庚烷、二烷六环或乙腈。
5、如权利要求1所述的合成1,3-二取代-4-烯-1-戊酮化合物的方法,其特征是所得产物经过重结晶,薄层层析或柱层析减压蒸馏加以分离。
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