CN106032348A - 一种炔水解合成酮的方法 - Google Patents
一种炔水解合成酮的方法 Download PDFInfo
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- 150000001345 alkine derivatives Chemical class 0.000 title claims abstract description 19
- 150000002576 ketones Chemical class 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002194 synthesizing effect Effects 0.000 title abstract description 3
- 230000003301 hydrolyzing effect Effects 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000002904 solvent Substances 0.000 claims abstract description 44
- 239000003054 catalyst Substances 0.000 claims abstract description 30
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 claims abstract description 27
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- 150000001875 compounds Chemical class 0.000 claims abstract description 22
- 238000002390 rotary evaporation Methods 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 230000007062 hydrolysis Effects 0.000 claims abstract description 11
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 20
- 239000000376 reactant Substances 0.000 claims description 20
- -1 aminomethyl phenyl Chemical group 0.000 claims description 14
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 4
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 claims description 3
- UJHSIDUUJPTLDY-UHFFFAOYSA-N (2-nitrophenyl)-phenylmethanone Chemical compound [O-][N+](=O)C1=CC=CC=C1C(=O)C1=CC=CC=C1 UJHSIDUUJPTLDY-UHFFFAOYSA-N 0.000 claims description 2
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- BUZYGTVTZYSBCU-UHFFFAOYSA-N 1-(4-chlorophenyl)ethanone Chemical compound CC(=O)C1=CC=C(Cl)C=C1 BUZYGTVTZYSBCU-UHFFFAOYSA-N 0.000 description 2
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- CKQHAYFOPRIUOM-UHFFFAOYSA-N 3'-Aminoacetophenone Chemical compound CC(=O)C1=CC=CC(N)=C1 CKQHAYFOPRIUOM-UHFFFAOYSA-N 0.000 description 2
- NLPHXWGWBKZSJC-UHFFFAOYSA-N 4-acetylbenzonitrile Chemical compound CC(=O)C1=CC=C(C#N)C=C1 NLPHXWGWBKZSJC-UHFFFAOYSA-N 0.000 description 2
- YQYGPGKTNQNXMH-UHFFFAOYSA-N 4-nitroacetophenone Chemical compound CC(=O)C1=CC=C([N+]([O-])=O)C=C1 YQYGPGKTNQNXMH-UHFFFAOYSA-N 0.000 description 2
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- 229910052721 tungsten Inorganic materials 0.000 description 2
- ZXMGHDIOOHOAAE-UHFFFAOYSA-N 1,1,1-trifluoro-n-(trifluoromethylsulfonyl)methanesulfonamide Chemical compound FC(F)(F)S(=O)(=O)NS(=O)(=O)C(F)(F)F ZXMGHDIOOHOAAE-UHFFFAOYSA-N 0.000 description 1
- HCEKGPAHZCYRBZ-UHFFFAOYSA-N 1-(3-fluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1 HCEKGPAHZCYRBZ-UHFFFAOYSA-N 0.000 description 1
- ZNBVIYMIVFKTIW-UHFFFAOYSA-N 1-(4-propylphenyl)ethanone Chemical compound CCCC1=CC=C(C(C)=O)C=C1 ZNBVIYMIVFKTIW-UHFFFAOYSA-N 0.000 description 1
- HVCFCNAITDHQFX-UHFFFAOYSA-N 1-cyclopropylethanone Chemical compound CC(=O)C1CC1 HVCFCNAITDHQFX-UHFFFAOYSA-N 0.000 description 1
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- LWISLHRIEATKTM-UHFFFAOYSA-N 2-Ethynylthiophene Chemical group C#CC1=CC=CS1 LWISLHRIEATKTM-UHFFFAOYSA-N 0.000 description 1
- XSAYZAUNJMRRIR-UHFFFAOYSA-N 2-acetylnaphthalene Chemical compound C1=CC=CC2=CC(C(=O)C)=CC=C21 XSAYZAUNJMRRIR-UHFFFAOYSA-N 0.000 description 1
- IZXPFTLEVNQLGD-UHFFFAOYSA-N 2-ethynylnaphthalene Chemical group C1=CC=CC2=CC(C#C)=CC=C21 IZXPFTLEVNQLGD-UHFFFAOYSA-N 0.000 description 1
- 125000004924 2-naphthylethyl group Chemical group C1=C(C=CC2=CC=CC=C12)CC* 0.000 description 1
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- UGLXZBZLTWYGTA-UHFFFAOYSA-N acetylene propylbenzene Chemical group C#C.C(CC)C1=CC=CC=C1 UGLXZBZLTWYGTA-UHFFFAOYSA-N 0.000 description 1
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- NODGRWCMFMEGJH-UHFFFAOYSA-N p-ethylacetophenone Chemical compound CCC1=CC=C(C(C)=O)C=C1 NODGRWCMFMEGJH-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明公开了一种炔水解合成酮的方法。在反应容器中,加入炔烃、催化剂[(IPr)AuCl]、溶剂甲醇和水,反应混合物在110-120 oC下反应数小时后,冷却到室温,旋转蒸发除去溶剂,然后通过柱分离,得到目标化合物。同原有的离子型金催化剂相比,本发明直接地使用金的氯化物[(IPr)AuCl] 作为催化剂就催化炔水解成酮,反应展现高的产率和完全的选择性,因而,本发明从有机合成和环境的角度都具有重要的意义。
Description
技术领域
本发明属有机合成化学技术领域,具体涉及一种酮的合成方法。
背景技术
区域选择性水解炔到酮是一类重要的C-O键形成反应。因为反应的原料炔容易获得,产物酮是一类重要的合成中间体,而这个反应原子经济性还是100%,因而有重要的意义。使用传统的方法,在剧毒的汞盐或者过量的酸的参与下才能进行。在过去几年里,使用离子型金作为催化剂区域选择性水解炔到酮已被实现,反应展现了高的催化活性和优异的区域选择选择性。((a)Marion,N.;Ramon,R.S.;Nolan,S.P.J.Am.Chem.Soc.2009,131,448-449.(b)Leyva,A.;Corma,A.J.Org.Chem.2009,74,2067-2074.(c)Hashmi,A.S.K.;Hengst,T.;Lothutz,C.;Romingera,F.Adv.Synth.Catal.2010,352,1315-1337.(d)Cavarzan,A.;Scarso,A.;Sgarbossa,P.;Strukul,G.;Reek,J.N.H.J.Am.Chem.Soc.2011,133,2848-2851.(e)Ghosh,N.;Nayak,S.;Sahoo,A.K.J.Org.Chem.2011,76,500-511.(f)Wang,D.;Cai,R.;Sharma,S.;Jirak,J.;Thummanapelli,S.K.;Akhmedov,N.G.;Zhang,H.;Liu,X.;Petersen,J.L.;Shi,X.J.Am.Chem.Soc.2012,134,9012-9019.(g)Li L.;Herzon,S.B.J.Am.Chem.Soc.2012,134,17376-17379.(h)J.J.Dunsford,K.J.Cavell,B.M.Kariuki,Organometallics 2012,31,4118-4121.(i)Xu,X.;Kim,S.H.;Zhang,X.;Das,A.K.;Hirao,H.;Hong,S.H.Organometallics 2013,32,164-171.(j)Weber,S.G.;Zahner,D.;Rominger,F.;Straub,B.F.ChemCatChem 2013,5,2330-2335.(k)Xie,L.;Wu,Y.;Yi,W.;Zhu,L.;Xiang,J.;He,W.J.Org.Chem.2013,78,9190-9195.(l)Xie,L.;Yuan,R.;Wang,R.;Peng,Z.;Xiang,J.;He,W.Eur.J.Org.Chem.2014,2668-2671.(m)Xu,Y.;Hu,X.;Shao,J.;Yang,G.;Wu Y.;Zhang,Z.Green Chem.2015,17,532-537.)。然而,离子型金[Au(L)]+(L=膦配体or N-卡宾配体)通常是通过中性的金的氯化物[Au(L)Cl],在银盐(AgX,X=OTf,BF4,SbF6,NTf2,etc.)的参与下激活而产生。这个反应还有严重的缺陷,银是贵金属,对光敏感,而且银本身也能催化炔水解,影响反应的选择性。
发明内容
本发明的目的在于提供一种合成酮的新方法。
本发明通过下述技术方案实现:一种合成酮(式Ⅰ)的新方法
其包含使炔烃(式Ⅱ)
在金的氯化物[(IPr)AuCl]催化发生水解反应,其反应通式为
其中,R选自芳基或脂肪基,芳基如甲基苯基、乙基苯基、丙基苯基、甲氧基苯基、卤代苯基、氨基苯基、硝基苯基、氰基苯基、三氟甲基苯基、噻吩基或萘基;脂肪基如环丙基或异丁基。
发明通过下述技术方法实现:
在反应容器中,加入炔烃、催化剂[(IPr)AuCl]、溶剂甲醇和水,反应混合物在110-120℃下反应数小时后,冷却到室温,旋转蒸发除去溶剂,然后通过柱分离,得到目标化合物。
其中,催化剂为
该反应在中性条件下进行,催化剂用量相对于炔烃的摩尔比为0.5-1mol%;溶剂中甲醇和水的体积比为1:2;反应温度为110-120℃;反应时间为6小时。
同原有的离子型金催化剂相比,本发明直接地使用金的氯化物[(IPr)AuCl]作为催化剂就催化炔水解成酮,反应展现高的产率和完全的选择性,因而,本发明从有机合成和环境的角度都具有重要的意义。
具体实施方式
展示一下实例来说明本发明的某些实施例,且不应解释为限制本发明的范围。对本发明公开的内容可以同时从材料,方法和反应条件上进行许多改进,变化和改变。所有这些改进,变化和改变均确定地落入本发明的精神和范围之内。
实施例1:苯乙酮
Acetophenone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:99%
1HNMR(500MHz,CDCl3)δ7.99-7.94(m,2H,ArH),7.59-7.54(m,1H,ArH),7.46(t,J=7.65Hz,2H,ArH),2.61(s,3H,CH3);13C NMR(125MHz,CDCl3)δ198.03,136.94,132.95,128.40,128.13,26.40
实施例2:4-甲基苯乙酮
1-p-tolylethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、4-甲基苯乙炔(1mmol)、甲醇(1ml) 和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:95%
1HNMR(500MHz,CDCl3)δ7.85(d,J=8.05Hz,2H,ArH),7.25(d,J=8.35Hz,2H,ArH),2.57(s,3H,CH3),2.40(s,3H,CH3);13C NMR(125MHz,CDCl3)δ197.60,143.65,134.49,129.01,128.20,26.23,21.37.
实施例3:3-甲基苯乙酮
1-m-tolylethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、3-甲基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:96%
1H NMR(500MHz,CDCl3)δ7.78-7.73(m,2H,ArH),7.40-7.33(m,2H,ArH),2.59(s,3H,CH3),2.41(s,3H,CH3);13C NMR(125MHz,CDCl3)δ198.29,138.22,137.06,133.74,128.67,128.32,125.47,26.52,21.20.
实施例4:4-乙基苯乙酮
1-(4-ethylphenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、4-乙基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:93%
1HNMR(500MHz,CDCl3)δ7.88(d,J=8.45Hz,2H,ArH),7.28(d,J=8.45Hz,2H,ArH),2.71(q,J=7.83Hz,2H,CH2),2.58(s,3H,CH3),1.25(t,J=7.55Hz,3H,CH3);13C NMR(125MHz,CDCl3)δ197.79,149.96,134.85,128.46,127.97,28.84,26.41,15.11.
实施例5:4-丙基苯乙酮
1-(4-propylphenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、4-丙基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:89%
1HNMR(500MHz,CDCl3)δ7.88(d,J=7.85Hz,2H,ArH),7.26(d,J=7.85Hz,2H,ArH),2.64(t,J=7.85Hz,2H,CH2),2.58(s,3H,CH3),1.66(sext,J=7.60Hz,2H,CH2),0.94(t,J=7.52Hz,3H,CH3);13C NMR(125MHz,CDCl3)δ197.67,148.38,134.87,128.52,128.32,37.88,26.36,24.08,13.59.
实施例6:4-甲氧基苯乙酮
1-(4-methoxyphenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、4-甲氧基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:92%
1HNMR(500MHz,CDCl3)δ7.94(d,J=9.00Hz,2H,ArH),6.93(d,J=8.60Hz,2H,ArH), 3.87(s,3H,CH3),2.55(s,3H,CH3);13C NMR(125MHz,CDCl3)δ196.71,163.39,130.47,130.21,113.57,55.35,26.19.
实施例7:4-氟苯乙酮
1-(4-fluorophenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、4-氟苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:96%
1HNMR(500MHz,CDCl3)δ8.01-7.96(m,2H,ArH),7.13(t,J=8.50Hz,2H,ArH),2.59(s,3H,CH3);13C NMR(125MHz,CDCl3)δ196.42,165.70(d,JC-F=252.5Hz),133.52,130.86(d,JC-F=9.1Hz),115.56(d,JC-F=22.16Hz),26.40.
实施例8:3-氟乙酮
1-(3-fluorophenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、3-氟苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:97%.
1HNMR(500MHz,CDCl3)δ7.74(d,J=7.10Hz,1H,ArH),7.63(d,J=8.90Hz,1H,ArH),7.45(q,J=7.10Hz,1H,ArH),7.30-7.24(m,1H,ArH),2.60(d,J=0.85Hz,3H,CH3);13C NMR(125MHz,CDCl3)δ196.47,162.62(d,JC-F=245.65Hz),138.99(d,JC-F=5.8Hz),130.55(d,JC-F=7.47Hz),123.94,119.84(d,JC-F= 22.00Hz),114.63(d,JC-F=22.63Hz),26.35
实施例10:3-溴苯乙酮
1-(3-bromophenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、3-溴苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:93%
1HNMR(500MHz,CDCl3)δ8.08(s,1H,ArH),7.88(d,J=8.00Hz,1H,ArH),769(d,J=8.00Hz,1H,ArH),7.35(t,J=7.62Hz,1H,ArH),2.59(s,3H,CH3),13CNMR(125MHz,CDCl3)δ196.49,138.71,135.83,131.27,130.10,126.80,122.85,26.54
实施例11:4-氯苯乙酮
1-(4-chlorophenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、4-氯苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:94%
1HNMR(500MHz,CDCl3)δ7.90(dt,J=8.45and 2.17Hz,2H,ArH),7.44(dt,J=8.55and 2.07Hz,2H,ArH),2.59(s,3H,CH3);13C NMR(125MHz,CDCl3)δ196.72,139.44,135.34,129.60,128.76,26.40.
实施例12:3-氨基苯乙酮
1-(3-aminophenyl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、3-氨基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:90%
1HNMR(500MHz,CDCl3)δ7.33(d,J=7.45Hz,1H,ArH),7.28-7.21(m,2H,ArH),6.89-6.85(m,1H,ArH),3.81(br s,2H,NH2),2.56(s,3H,CH3);13C NMR(125MHz,CDCl3)δ198.47,146.72,138.06,129.29,119.55,118.62,113.89,26.54
实施例13:4-硝基苯乙酮
1-(4-nitrophenyl)ethanone
将催化剂[(IPr)AuCl](6.2mg,1mol%)、4-硝基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在120℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:94%
1HNMR(500MHz,CDCl3)δ8.32(d,J=9.25Hz,2H,ArH),8.11(d,J=9.25Hz,2H,ArH),2.68(s,3H,CH3);13C NMR(125MHz,CDCl3)δ196.22,150.25,141.32,129.21,123.74,26.86
实施例14:4-三氟甲基苯乙酮
1-(4-(trifluoromethyl)phenyl)ethanone
将催化剂[(IPr)AuCl](6.2mg,1mol%)、4-三氟甲基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在120℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:91%
1HNMR(500MHz,CDCl3)δ8.06(d,J=8.30Hz,2H,ArH),7.74(d,J=8.30Hz,2H,ArH),2.65(s,3H,CH3);13C NMR(125MHz,CDCl3)δ196.74,139.59,134.16(q,JC-F=32.43Hz),128.45,125.45(d,JC-F=3.4Hz),123.51(q,JC-F=270.57Hz),26.41
实施例15:4-氰基苯乙酮
4-acetylbenzonitrile
将催化剂[(IPr)AuCl](6.2mg,1mol%)、4-氰基苯乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:92%
1HNMR(500MHz,CDCl3)δ8.05(d,J=8.20Hz,2H,ArH),7.78(d,J=7.75Hz,2H,ArH),2.65(s,3H,CH3);13C NMR(125MHz,CDCl3)δ196.44,139.84,132.41,128.60,117.82,116.28,26.65.
实施例16:2-噻吩基乙酮
1-(thiophen-2-yl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、2-噻吩基乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:93%
1HNMR(500MHz,CDCl3)δ7.71-7.69(m,1H,ArH),7.64(d,J=4.75Hz,1H,ArH),7.15-7.11(m,1H,ArH),2.57(d,J=2.05Hz,3H,CH3),13C NMR(125MHz,CDCl3)δ190.35,144.14,133.48,132.26,127.84,26.49
实施例17:2-萘基乙酮
1-(naphthalen-2-yl)ethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、2-萘基乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应12小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:94%
1HNMR(500MHz,CDCl3)δ8.47(s,1H,ArH),8.04(d,J=8.80Hz,1H,ArH),7.97(d,J=7.20Hz,1H,ArH),7.89(t,J=8.02Hz,1H,ArH),7.63-7.53(m,2H,ArH),2.73(s,3H,CH3);13C NMR(125MHz,CDCl3)δ197.77,135.33,134.24,132.27,129.95,129.32,128.23,128.16,127.54,126.53,123.63,26.40
实施例18:3,3-二甲基-2-丁酮
3,3-dimethylbutan-2-one
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、3,3-二甲基-1-丁炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:83%
1H NMR(500MHz,CDCl3)δ2.16-2.13(m,3H,CH3),1.16-1.13(m,9H,3xCH3);13CNMR(125MHz,CDCl3)δ214.0,44.1,26.2,24.5
实施例19:环丙甲基酮
1-cyclopropylethanone
将催化剂[(IPr)AuCl](3.1mg,0.5mol%)、环丙基乙炔(1mmol)、甲醇(1ml)和水(0.5ml)依次加到25ml反应器中。反应混合物在110℃下反应6小时后,冷却到室温。旋转蒸发除掉溶剂,然后通过柱层析(展开剂:石油醚/乙酸乙酯)得到纯净的目标化合物,产率:86%
1H NMR(500MHz,CDCl3)δ2.25-2.23(m,3H,CH3),1.98-1.91(m,1H,CH),1.05-1.00(m,2H,CH2),0.92-0.86(m,2H,CH2);13C NMR(125MHz,CDCl3)δ208.6,29.8,20.9,10.4。
Claims (4)
1.一种炔水解合成酮的方法,其特征在于,如下结构的炔烃
在催化剂[(IPr)AuCl]催化下发生水解反应,
其中,R选自芳基或脂肪基,芳基选自甲基苯基、乙基苯基、丙基苯基、甲氧基苯基、卤代苯基、氨基苯基、硝基苯基、氰基苯基、三氟甲基苯基、噻吩基或萘基;脂肪基选自环丙基或异丁基,具体包括如下步骤:
在反应容器中,加入炔烃、催化剂[(IPr)AuCl]、溶剂甲醇和水,反应混合物在110-120 oC下反应后,冷却到室温,旋转蒸发除去溶剂,然后通过柱分离,得到目标化合物。
2.如权利要求1所述的炔水解合成酮的方法,其特征在于,催化剂[(IPr)AuCl]用量相对于炔烃的摩尔比为0.5-1 mol%。
3.如权利要求1所述的炔水解合成酮的方法,其特征在于,溶剂中甲醇和水的体积比为1:2。
4.如权利要求1所述的炔水解合成酮的方法,其特征在于,反应时间为6小时。
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CN110511230A (zh) * | 2019-07-23 | 2019-11-29 | 北京大学深圳研究生院 | 化合物及其制备方法与应用、有机电致变色器件 |
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CN109384677A (zh) * | 2017-08-14 | 2019-02-26 | 南京理工大学 | 一种合成伯胺盐酸盐的方法 |
CN110511230A (zh) * | 2019-07-23 | 2019-11-29 | 北京大学深圳研究生院 | 化合物及其制备方法与应用、有机电致变色器件 |
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