CN105820061A - 一种合成n-烷基酰胺的方法 - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000002904 solvent Substances 0.000 claims abstract description 90
- 238000006243 chemical reaction Methods 0.000 claims abstract description 79
- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 31
- 150000002825 nitriles Chemical class 0.000 claims abstract description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 13
- 150000003624 transition metals Chemical class 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 239000003513 alkali Substances 0.000 claims abstract description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010931 gold Substances 0.000 claims abstract description 6
- 229910052737 gold Inorganic materials 0.000 claims abstract description 6
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 6
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 58
- 229910021640 Iridium dichloride Inorganic materials 0.000 claims description 29
- 230000006837 decompression Effects 0.000 claims description 29
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 26
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 26
- -1 aminomethyl phenyl Chemical group 0.000 claims description 16
- 125000003107 substituted aryl group Chemical group 0.000 claims description 8
- 238000003786 synthesis reaction Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 125000002541 furyl group Chemical group 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 4
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- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000001624 naphthyl group Chemical group 0.000 claims description 2
- 150000002923 oximes Chemical class 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 125000001544 thienyl group Chemical group 0.000 claims description 2
- 229930192474 thiophene Natural products 0.000 claims description 2
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- 231100000252 nontoxic Toxicity 0.000 abstract description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005804 alkylation reaction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
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- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 abstract 1
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 108
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 81
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 54
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 36
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 27
- 238000005160 1H NMR spectroscopy Methods 0.000 description 27
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- 125000004802 cyanophenyl group Chemical group 0.000 description 17
- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 description 15
- 229960004217 benzyl alcohol Drugs 0.000 description 12
- 235000019445 benzyl alcohol Nutrition 0.000 description 12
- 230000008859 change Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
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- MFGWMAAZYZSWMY-UHFFFAOYSA-N (2-naphthyl)methanol Chemical compound C1=CC=CC2=CC(CO)=CC=C21 MFGWMAAZYZSWMY-UHFFFAOYSA-N 0.000 description 2
- LTEQMZWBSYACLV-UHFFFAOYSA-N Hexylbenzene Chemical compound CCCCCCC1=CC=CC=C1 LTEQMZWBSYACLV-UHFFFAOYSA-N 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 description 2
- FTXOKHPPDXNLQM-UHFFFAOYSA-N n-[[4-(trifluoromethoxy)phenyl]methyl]benzamide Chemical compound C1=CC(OC(F)(F)F)=CC=C1CNC(=O)C1=CC=CC=C1 FTXOKHPPDXNLQM-UHFFFAOYSA-N 0.000 description 2
- WNRUZDLCZDWZTD-UHFFFAOYSA-N n-benzyl-3,4-dichlorobenzamide Chemical compound C1=C(Cl)C(Cl)=CC=C1C(=O)NCC1=CC=CC=C1 WNRUZDLCZDWZTD-UHFFFAOYSA-N 0.000 description 2
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- GEFZSLMGZREDTO-UHFFFAOYSA-N n-benzyl-4-methoxybenzamide Chemical compound C1=CC(OC)=CC=C1C(=O)NCC1=CC=CC=C1 GEFZSLMGZREDTO-UHFFFAOYSA-N 0.000 description 2
- QIULRTIURUDCGH-UHFFFAOYSA-N n-benzyl-4-methylbenzamide Chemical compound C1=CC(C)=CC=C1C(=O)NCC1=CC=CC=C1 QIULRTIURUDCGH-UHFFFAOYSA-N 0.000 description 2
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- GEZMEIHVFSWOCA-UHFFFAOYSA-N (4-fluorophenyl)methanol Chemical compound OCC1=CC=C(F)C=C1 GEZMEIHVFSWOCA-UHFFFAOYSA-N 0.000 description 1
- KUWBYWUSERRVQP-UHFFFAOYSA-N 3,4-dichlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1Cl KUWBYWUSERRVQP-UHFFFAOYSA-N 0.000 description 1
- PXXLQQDIFVPNMP-UHFFFAOYSA-N 3-(diethylcarbamoyl)benzoic acid Chemical compound CCN(CC)C(=O)C1=CC=CC(C(O)=O)=C1 PXXLQQDIFVPNMP-UHFFFAOYSA-N 0.000 description 1
- MOOUWXDQAUXZRG-UHFFFAOYSA-N 4-(trifluoromethyl)benzyl alcohol Chemical compound OCC1=CC=C(C(F)(F)F)C=C1 MOOUWXDQAUXZRG-UHFFFAOYSA-N 0.000 description 1
- AEKVBBNGWBBYLL-UHFFFAOYSA-N 4-fluorobenzonitrile Chemical compound FC1=CC=C(C#N)C=C1 AEKVBBNGWBBYLL-UHFFFAOYSA-N 0.000 description 1
- 239000001692 EU approved anti-caking agent Substances 0.000 description 1
- 102000002512 Orexin Human genes 0.000 description 1
- 238000006434 Ritter amidation reaction Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- ZLSOZAOCYJDPKX-UHFFFAOYSA-N [4-(trifluoromethoxy)phenyl]methanol Chemical compound OCC1=CC=C(OC(F)(F)F)C=C1 ZLSOZAOCYJDPKX-UHFFFAOYSA-N 0.000 description 1
- 150000001263 acyl chlorides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
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- 238000006555 catalytic reaction Methods 0.000 description 1
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- 239000005482 chemotactic factor Substances 0.000 description 1
- VSSAZBXXNIABDN-UHFFFAOYSA-N cyclohexylmethanol Chemical compound OCC1CCCCC1 VSSAZBXXNIABDN-UHFFFAOYSA-N 0.000 description 1
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- 150000002148 esters Chemical class 0.000 description 1
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
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- 230000000977 initiatory effect Effects 0.000 description 1
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- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- PMBAZUADXYLDHV-UHFFFAOYSA-N n-(3-methylbutyl)benzamide Chemical compound CC(C)CCNC(=O)C1=CC=CC=C1 PMBAZUADXYLDHV-UHFFFAOYSA-N 0.000 description 1
- LGTPQVBRVVRWDX-UHFFFAOYSA-N n-(cyclohexylmethyl)benzamide Chemical compound C=1C=CC=CC=1C(=O)NCC1CCCCC1 LGTPQVBRVVRWDX-UHFFFAOYSA-N 0.000 description 1
- FTABNBAFUSPGJJ-UHFFFAOYSA-N n-(furan-2-ylmethyl)benzamide Chemical compound C=1C=CC=CC=1C(=O)NCC1=CC=CO1 FTABNBAFUSPGJJ-UHFFFAOYSA-N 0.000 description 1
- BYUNTEFPPDDBAX-UHFFFAOYSA-N n-(naphthalen-2-ylmethyl)benzamide Chemical compound C=1C=C2C=CC=CC2=CC=1CNC(=O)C1=CC=CC=C1 BYUNTEFPPDDBAX-UHFFFAOYSA-N 0.000 description 1
- XUHDXDZZNBMHCB-UHFFFAOYSA-N n-(thiophen-2-ylmethyl)benzamide Chemical compound C=1C=CC=CC=1C(=O)NCC1=CC=CS1 XUHDXDZZNBMHCB-UHFFFAOYSA-N 0.000 description 1
- ZADRCJPNXINCJW-UHFFFAOYSA-N n-[(2,4-dichlorophenyl)methyl]benzamide Chemical compound ClC1=CC(Cl)=CC=C1CNC(=O)C1=CC=CC=C1 ZADRCJPNXINCJW-UHFFFAOYSA-N 0.000 description 1
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- KQGPJTVBXJGIIY-UHFFFAOYSA-N n-[(4-bromophenyl)methyl]benzamide Chemical compound C1=CC(Br)=CC=C1CNC(=O)C1=CC=CC=C1 KQGPJTVBXJGIIY-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明公开了一种合成N-烷基酰胺的方法。在反应容器中,加入腈,过渡金属催化剂金的络合物,溶剂四氢呋喃和H2O;反应混合物在130-140oC下反应数小时后,冷却到室温,真空减压除去溶剂;加入化合物醇,碱,过渡金属催化剂铱的络合物,溶剂甲苯,反应混合物在130oC下再反应数小时后,然后通过柱分离,得到目标化合物。本发明从商品化的腈出发,在过渡金属催化剂的参与下,发生水解,生成酰胺中间体,然后和醇发生烷基化反应,得到N-烷基酰胺,反应展现出三个显著的优点:1)使用商品化的腈和近于无毒的醇为起始原料;2)反应只生成水为副产物,无环境危害;3)反应原子经济性高;因此,该反应符合绿色化学的要求,具有广阔的发展前景。
Description
技术领域
本发明属有机合成化学技术领域,具体涉及一种合成N-烷基酰胺的方法。
背景技术
N-烷基酰胺是一类非常重要的含氮化合物,这类化合物作为精细化学品、天然产物、药物化学品和聚合物被广泛应用,例如:基质金属酶蛋白13抑制剂、促食素的抗结剂受体、C-C趋化因子4受体拮抗剂、亲神经的病毒复制抑制剂((a)J.M.Humphrey,A.R.Chamberlin,Chem.Rev.1997,97,2243-2266;b)T.Cupido,J.Tulla-Puche,J.Spengler,F.Albericio,Curr.Opin.DrugDiscoveryDev.2007,10,768-783;c)C.L.Allen,J.M.J.Williams,Chem.Soc.Rev.2011,40,3405;d)V.R.Pattabiraman,J.W.Bode,Nature,2011,480,471-479.)。N-烷基酰胺的传统合成方法是由羧酸衍生物(例如,酰氯,羧酸酐和酯)和N-烷基胺反应合成。然而,这些方法经常需要使用当量的有毒试剂,并且产生大量的副产物,严重污染环境。(a)M.B.Smith,J.March,March’sAdvancedOrganicChemistry:Reactions,Mechanisms,andStructure,6thed.,Wiley,Hoboken,NJ,2007;b)M.B.Smith,OrganicSynthesis,2nded.,Mc-Graw-HillCompanies,NewYork,2002;c)E.Valeur,M.Bradley,Chem.Soc.Rev.2009,38,606-631.)。
通过容易获得的腈与醇的反应合成N-烷基酰胺的显然具有重要的意义。例如经典的Ritter反应。然而,这个反应需要用到过量的浓硫酸,因此潜在的应用受到严重限制。(a)J.J.Ritter,P.P.Minieri,J.Am.Chem.Soc.1948,70,4045-4048;b)F.R.Benson,J.J.Ritter,J.Am.Chem.Soc.1949,71,4128-4129;c)H.Plaut,J.J.Ritter,J.Am.Chem.Soc.1951,73,4076-4077;d),L.I.Krimen,D.J.Cota,Org.React.1969,17,213-325)。因此,出于可持续化学的角度,发展一种新的催化系统,使腈和醇作为原料合成N-烷基酰胺在环境更加友好、原子经济性更高的条件下进行是十分有必要的。
发明内容
本发明的目的在于提供一种合成N-烷基酰胺的新方法。
本发明通过下述技术方案实现:合成N-烷基酰胺(式Ⅰ)
其包含腈(式Ⅱ)
经水解成(式IV)
与化合物醇(式III)反应
反应是在过渡金属催化剂存在下发生,其反应通式为
其中,R1选自烷基、芳基、单或多取代芳基,单或多取代芳基优选甲基苯基、甲氧基苯基、三氟甲基苯基、卤代苯基、呋喃基或噻酚基;
R2代表一个取代基,选自C5-C7烷基、芳基、单或多取代芳基,单或多取代芳基优选甲基苯基、甲氧基苯基、三氟甲基苯基、三氟甲氧基苯基、卤代苯基、萘基、呋喃基、噻吩基或二茂铁甲基。
本发明合成N-烷基酰胺的新方法通过下述具体步骤实现:
步骤1、在反应容器中,加入腈,过渡金属催化剂金的络合物,溶剂四氢呋喃和H2O;反应混合物在130-140℃下反应数小时后,冷却到室温,真空减压除去溶剂;
步骤2、加入化合物醇,碱,过渡金属催化剂铱的络合物,溶剂甲苯,反应混合物在130℃下再反应数小时后,然后通过柱分离,得到目标化合物。
步骤1中所述的过渡金属金络合物为[(IPr)AuNTf](IPr=1,3-bis(diisopropylphenyl)imidazol-2-ylidene)、过渡金属铱络合物为[Cp*IrCl2]2(Cp*=pentamethylcyclopentadienyl);过渡金属金络合物用量为腈的2-5mol%,过渡金属铱络合物的用量为腈的1-2mol%。
步骤1中所述的反应时间为12小时或者微波反应6小时。
步骤2中所述的碱为碳酸铯或叔丁醇钾;所述的碱的摩尔量为肟摩尔量的0.1-0.4equiv.;所述的化合物醇的摩尔量为腈摩尔量的1.2-2equiv.;所述的反应时间为12小时或者微波反应3小时。
同现有技术相比,本发明从商品化的腈出发,在过渡金属催化剂的参与下,发生水解,生成酰胺中间体,然后和醇发生烷基化反应,得到N-烷基酰胺,反应展现出三个显著的优点:1)使用商品化的腈和近于无毒的醇为起始原料;2)反应只生成水为副产物,无环境危害;3)反应原子经济性高;因此,该反应符合绿色化学的要求,具有广阔的发展前景。
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:N-苄基苯甲酰胺
N-benzylbenzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:84%。
1HNMR(500MHz,CDCl3)δ7.79(d,J=7.4Hz,2H,ArH),7.50(t,J=7.0Hz,1H,ArH),7.43(t,J=7.3Hz,2H,ArH),7.39-7.27(m,5H,ArH),6.45(brs,1H,NH),4.65(d,J=5.4Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.4,138.2,134.3,131.5,128.7,128.5,127.8,127.5,126.9,44.0.
实施例2:N-(2-甲基苄基)苯甲酰胺
N-(2-methylbenzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),2-甲基苄醇(146mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:81%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.8Hz,2H,ArH),7.50(t,J=7.2Hz,1H,ArH),7.42(t,J=7.6Hz,2H,ArH),7.30(d,J=7.0Hz,1H,ArH),7.25-7.17(m,3H,ArH),6.22(brs,1H,NH),4.65(d,J=5.3Hz,2H,NCH2),2.38(s,3H,CH3);.13CNMR(125MHz,CDCl3)δ167.2,136.6,135.7,134.3,131.5,130.6,128.6,128.5,127.9,126.9,126.2,42.3,19.0.
实施例3:N-(4-甲基苄基)苯甲酰胺
N-(4-methylbenzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),4-甲基苄醇(146mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:83%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.7Hz,2H,ArH),7.49(t,J=7.3Hz,1H,ArH),7.42(t,J=7.6Hz,2H,ArH),7.25(d,J=7.9Hz,2H,ArH),7.16(d,J=7.7Hz,2H,ArH),6.38(brs,1H,NH),4.60(d,J=5.5Hz,2H,NCH2),2.34(s,3H,CH3);13CNMR(125MHz,CDCl3)δ167.3,137.3,135.1,134.4,131.4,129.4,128.5,127.9,126.9,43.8,21.0.
实施例4:N-(4-甲氧基苄基)苯甲酰胺
N-(4-methoxybenzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),4-甲氧基苄醇(166mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:85%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.5Hz,2H,ArH),7.49(t,J=7.2Hz,1H,ArH),7.42(t,J=7.4Hz,2H,ArH),7.29(d,J=8.2Hz,2H,ArH),6.88(d,J=8.3Hz,2H,ArH),6.36(brs,1H,NH),4.58(d,J=5.4Hz,2H,NCH2),3.80(s,3H,OCH3);13CNMR(125MHz,CDCl3)δ167.2,159.0,134.4,131.4,130.3,129.2,128.5,126.9,114.1,55.2,43.5.
实施例5:N-(4-氟苄基)苯甲酰胺
N-(4-fluorobenzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),4-氟苄醇(151mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:86%。
1HNMR(500MHz,CDCl3)δ7.79(d,J=7.4Hz,2H,ArH),7.51(t,J=7.4Hz,2H,ArH),7.43(t,J=7.6Hz,2H,ArH),7.36-7.29(m,2H,ArH),7.03(t,J=8.6Hz,2H,ArH),6.46(brs,1H,NH),4.61(d,J=5.7Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.4,162.2(d,JC-F=244.1Hz),134.2,134.0,131.6,129.5(d,JC-F=8.0Hz),128.6,126.9,115.5(d,JC-F=21.5Hz),43.3.
实施例6:N-(4-氯苄基)苯甲酰胺
N-(4-chlorobenzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),4-氯苄醇(171mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:87%。
1HNMR(500MHz,CDCl3).δ7.78(d,J=7.4Hz,2H,ArH),7.51(t,J=7.3Hz,1H,ArH),7.43(t,J=7.5Hz,2H,ArH),7.34-7.27(m,4H,ArH),6.51(brs,1H,NH),4.61(d,J=5.8Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.5,136.8,134.1,133.2,131.6,129.1,128.8,128.5,126.9,43.3.
实施例7:N-(2,4-二氯苄基)苯甲酰胺
N-(2,4-dichlorobenzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),2,4-二氯苄醇(212mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:84%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.6Hz,2H,ArH),7.51(t,J=7.3Hz,1H,ArH),7.47-7.37(m,4H,ArH),7.23(dd,J=8.2Hzand1.3Hz,1H,ArH),6.66(brs,1H,NH),4.68(d,J=6.0Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.4,134.2,134.1,133.99,133.95,131.7,131.0,129.3,128.6,127.3,126.9,41.4.
实施例8:N-(4-溴苄基)苯甲酰胺
N-(4-bromobenzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),4-溴苄醇(212mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:80%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.6Hz,2H,ArH),7.51(t,J=7.3Hz,1H,ArH),7.48-7.41(m,4H,ArH),7.23(d,J=8.2Hz,2H,ArH),6.50(brs,1H,NH),4.59(d,J=5.8Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.5,137.3,134.1,131.8,131.6,129.5,128.6,126.9,121.4,43.4.
实施例9:N-(4-三氟甲基苄基)苯甲酰胺
N-(4-(trifluoromethyl)benzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),4-三氟甲基苄醇(211mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:83%。
1HNMR(500MHz,CDCl3)δ7.80(d,J=6.2Hz,2H,ArH),7.60(t,J=7.2Hz,2H,ArH),7.55-7.49(m,1H,ArH),7.49-7.38(m,4H,ArH),6.74-6.47(m,1H,NH),4.75-4.64(m,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.6,142.4,134.0,131.7,129.8(q,JC-F=32.2Hz),128.6,127.9,127.0,125.6(q,JC-F=3.5Hz),124.0(q,JC-F=270.4Hz),43.5.
实施例10:N-(4-三氟甲氧基苄基)苯甲酰胺
N-(4-(trifluoromethoxy)benzyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),4-三氟甲氧基苄醇(230mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:86%。
1HNMR(500MHz,CDCl3)δ7.79(d,J=7.6Hz,2H,ArH),7.52(t,J=7.3Hz,1H,ArH),7.44(t,J=7.5Hz,2H,ArH),7.38(d,J=8.4Hz,2H,ArH),7.19(d,J=8.2Hz,2H,ArH),6.50(brs,1H,NH),4.65(d,J=5.8Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.5,148.6,137.1,134.1,131.7,129.2,128.6,127.0,121.2,120.4(q,JC-F=255.6Hz),43.2.
实施例11:N-(2-萘甲基)苯甲酰胺
N-(naphthalen-2-ylmethyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),2-萘甲醇(190mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:88%。
1HNMR(500MHz,CDCl3)δ7.88-7.76(m,6H,ArH),7.52-7.39(m,6H,ArH),6.54(brs,1H,NH),4.80(d,J=5.0Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.4,135.6,134.3,133.3,132.8,131.5,128.6,127.7,127.6,127.0,126.5,126.3,125.94,125.91,44.2.
实施例12:N-(2-噻吩甲基)苯甲酰胺
N-(thiophen-2-ylmethyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),2-噻吩甲醇(137mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:86%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.5Hz,2H,ArH),7.50(t,J=7.4Hz,1H,ArH),7.43(t,J=7.6Hz,2H,ArH),7.25(d,J=5.3Hz,1H,ArH),7.05(d,J=3.0Hz,1H,ArH),6.98(dd,J=4.8Hzand3.7Hz,1H,ArH),6.45(brs,1H,NH),4.82(d,J=5.6Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.1,140.8,134.1,131.6,128.5,127.0,126.9,126.2,125.3,38.8.
实施例13:N-(2-呋喃甲基)苯甲酰胺
N-(furan-2-ylmethyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),糠醇(118mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:87%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.4Hz,2H,ArH),7.50(t,J=7.3Hz,1H,ArH),7.43(t,J=7.5Hz,2H,ArH),7.38(s,1H,ArH),6.44(brs,1H,NH),6.34(m,1H,ArH),6.30(m,1H,ArH),4.65(d,J=5.4Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ167.2,151.2,142.2,134.1,131.6,128.5,127.0,110.5,107.6,37.0.
实施例14:N-(二茂铁甲基)苯甲酰胺
N-(Ferrocenemethyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),二茂铁甲醇(260mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:83%。
1HNMR(500MHz,CDCl3)δ7.78(d,J=7.4Hz,2H,ArH),7.51(t,J=7.3Hz,1H,ArH),7.44(t,J=7.4Hz,2H,ArH),6.30(brs,1H,NH),4.34(d,J=5.2Hz,2H,NCH2),4.27(s,2H,FerroceneH),4.21(s,5H,FerroceneH),4.18(s,2H,FerroceneH);13CNMR(125MHz,CDCl3)δ166.8,134.5,131.4,128.6,126.8,84.7,68.5,68.3,68.2,39.3.
实施例15:N-己基苯甲酰胺
N-hexylbenzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),正己醇(204mg,2mmol)、叔丁醇钾(23mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:81%。
1HNMR(500MHz,CDCl3)δ7.76(d,J=7.6Hz,2H,ArH),7.49(t,J=7.2Hz,1H,ArH),7.42(t,J=7.5Hz,2H,ArH),6.14(brs,1H,NH),3.45(q,J=6.7Hz,2H,NCH2),1.61(quint,J=7.3Hz,2H,CH2),1.42-1.29(m,6H,3xCH2),0.89(t,J=6.4Hz,3H,CH3);13CNMR(125MHz,CDCl3)δ167.5,134.9,131.2,128.4,126.8,40.1,31.5,29.6,26.6,22.5,14.0.
实施例16:N-异戊基苯甲酰胺
N-isopentylbenzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),3-甲基-1-丁醇(176mg,2mmol)、叔丁醇钾(23mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:79%。
1HNMR(500MHz,CDCl3)δ7.75(d,J=7.5Hz,2H,ArH),7.49(t,J=7.3Hz,1H,ArH),7.42(t,J=7.5Hz,2H,ArH),6.10(brs,1H,NH),3.48(quart,J=6.8Hz,2H,NCH2),1.69(sept,J=6.6Hz,1H,CH),1.51(quart,J=7.3Hz,2H,CH2),0.96(d,J=6.6Hz,6H,2xCH3);13CNMR(125MHz,CDCl3)δ167.5,134.8,131.2,128.4,126.8,38.5,38.3,25.9,22.4.
实施例17:N-环己甲基苯甲酰胺
N-(cyclohexylmethyl)benzamide
将苯腈(103mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),环己基甲醇(228mg,2mmol)、叔丁醇钾(23mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:83%。
1HNMR(500MHz,CDCl3)δ7.76(d,J=7.3Hz,2H,ArH),7.49(t,J=7.1Hz,1H,ArH),7.43(t,J=7.3Hz,2H,ArH),6.21(brs,1H,NH),3.30(t,J=6.3Hz,2H,NCH2),1.82-1.71(m,4H,2xCH2),1.70-1.64(m,1H,CH),1.63-1.54(m,1H,CH),1.30-1.12(m,3H,CHandCH2),1.00(q,J=11.7Hz,2H,CH2);13CNMR(125MHz,CDCl3)δ167.5,134.9,131.2,128.5,126.8,46.2,38.0,30.9,26.3,25.8.
实施例18:N-苄基-4-甲基苯甲酰胺
N-benzyl-4-methylbenzamide
将4-甲基苯腈(117mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在140℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:80%。
1HNMR(500MHz,CDCl3)δ7.69(d,J=8.0Hz,2H,ArH),7.38-7.27(m,5H,ArH),7.22(d,J=6.8Hz,2H,ArH),6.50-6.30(m,1H,NH),4.64(dd,J=5.3Hzand3.4Hz,NCH2),2.39(s,3H,CH3);13CNMR(125MHz,CDCl3)δ167.3,141.9,138.3,131.5,129.2,128.7,127.8,127.5,126.9,44.0,21.4.
实施例19:N-苄基-4-甲氧基苯甲酰胺
N-benzyl-4-methoxybenzamide
将4-甲氧基苯腈(133mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在140℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:84%。
1HNMR(500MHz,CDCl3)δ7.76(d,J=8.6Hz,2H,ArH),7.39-7.27(m,5H,ArH),6.91(d,J=8.6Hz,2H,ArH),6.36(brs,1H,NH),4.63(d,J=5.6Hz,2H,NCH2),3.84(s,3H,CH3);13CNMR(125MHz,CDCl3)δ166.9,162.2,138.4,128.8,128.7,127.8,127.4,126.6,113.7,55.3,44.0.
实施例20:N-苄基-4-氟苯甲酰胺
N-benzyl-4-fluorobenzamide
将4-氟苯腈(121mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:87%。
1HNMR(500MHz,CDCl3)δ7.83-7.76(m,2H,ArH),7.40-7.27(m,5H,ArH),7.10(t,J=8.6Hz,2H,ArH),6.38(brs,1H,NH),4.63(d,J=5.6Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ166.3,164.7(d,JC-F=251.0Hz),138.0,130.5,129.3(d,JC-F=9.0Hz),128.8,127.8,127.6,115.5(d,JC-F=21.7Hz),44.1.
实施例21:N-苄基-4-氯苯甲酰胺
N-benzyl-4-chlorobenzamide
将4-氯苯腈(137mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:92%。
1HNMR(500MHz,CDCl3)δ7.73(d,J=8.2Hz,2H,ArH),7.40(d,J=8.2Hz,2H,ArH),7.38-7.28(m,5H,ArH),6.40(brs,1H,NH),4.63(d,J=5.6Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ166.3,137.9,137.7,132.7,128.8,128.4,127.9,127.7,44.2.
实施例22:N-苄基-3,4-二氯苯甲酰胺
N-benzyl-3,4-dichlorobenzamide
将3,4-二氯苯腈(172mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:89%。
1HNMR(500MHz,CDCl3)δ7.88(s,1H,ArH),7.60(d,J=7.8Hz,1H,ArH),7.50(d,J=8.2Hz,1H,ArH),7.41-7.29(m,5H,ArH),6.45(brs,1H,NH),4.62(d,J=5.3Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ165.2,137.6,135.9,134.1,133.0,130.6,129.2,128.8,127.9,127.7,126.1,44.2.
实施例23:N-苄基-4-溴苯甲酰胺
N-benzyl-4-bromobenzamide
将4-溴苯腈(182mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:86%。
1HNMR(500MHz,CDCl3)δ7.66(d,J=8.4Hz,2H,ArH),7.56(d,J=8.4Hz,2H,ArH),7.39-7.28(m,5H,ArH),6.38(brs,1H,NH),4.63(d,J=5.6Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ166.4,137.9,133.2,131.8,128.8,128.6,127.9,127.7,126.2,44.2.
实施例24:N-苄基-4-三氟甲基苯甲酰胺
N-benzyl-4-(trifluoromethyl)benzamide
将4-三氟甲基苯腈(171mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:85%。
1HNMR(500MHz,CDCl3)δ7.90(d,J=8.0Hz,2H,ArH),7.69(d,J=8.0Hz,2H,ArH),7.417.29(m,5H,ArH),6.48(brs,1H,NH),4.66(d,J=5.6Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ166.1,137.8,137.7,133.3(q,JC-F=32.5Hz),128.8,127.9,127.8,127.4,125.6,123.6(q,JC-F=271.1Hz),44.3.
实施例25:N-苄基-2-噻吩甲酰胺
N-benzylthiophene-2-carboxamide
将2-噻吩甲腈(109mg,1mmol),[(IPr)AuNTf](17mg,0.02mmol,2mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到25mlSchlenk反应瓶中。混合物在130℃下反应12小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(8mg,0.01mmol,1mol%),苄醇(130mg,1.2mmol)、碳酸铯(65mg,0.2equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再继续反应12小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:83%。
1HNMR(500MHz,CDCl3)δ7.51(d,J=3.8Hz,1H,ArH),7.47(d,J=5.0Hz,1H,ArH),7.38-7.33(m,4H,ArH),7.33-7.27(m,1H,ArH),7.06(t,J=4.3Hz,1H,ArH),6.30(brs,1H,NH),4.62(d,J=5.7Hz,2H,NCH2);13CNMR(125MHz,CDCl3)δ161.8,138.8,138.0,130.0,128.7,128.1,127.8,127.6,127.5,43.9.
实施例26:N-苄基-2-苯丙酰胺
N-benzyl-2-phenylpropanamide
将α-甲基苯乙腈(131mg,1mmol),[(IPr)AuNTf](43mg,0.05mmol,5mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到5ml微波反应管中。混合物在140℃下微波反应6小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(16mg,0.02mmol,2mol%),苄醇(216mg,2mmol)、碳酸铯(130mg,0.4equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再微波反应3小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:81%。
1HNMR(500MHz,CDCl3)δ7.39-7.20(m,8H,ArH),7.14(d,J=7.0Hz,2H,ArH),5.65(brs,1H,NH),4.45-4.33(m,2H,NCH2),3.60(q,J=6.9Hz,2H,CH),1.56(d,J=7.0Hz,3H,CH3);13CNMR(125MHz,CDCl3)δ174.0,141.3,138.3,128.9,128.5,127.6,127.4,127.3,127.2,47.1,43.5,18.5.
实施例27:N-苄基丁酰胺
N-benzylbutyramide
将丁腈(69mg,1mmol),[(IPr)AuNTf](43mg,0.05mmol,5mol%),四氢呋喃(0.5ml),H2O(0.5ml)依次加到5ml微波反应管中。混合物在140℃下微波反应6小时后,冷却到室温,真空减压除去溶剂。将[Cp*IrCl2]2(16mg,0.02mmol,2mol%),苄醇(216mg,2mmol)、碳酸铯(130mg,0.4equiv.)和甲苯(1ml)加到反应瓶中,混合物在130℃下再微波反应3小时后,冷却到室温。旋转蒸发除去溶剂,然后通过柱层析(展开剂:乙酸乙酯/石油醚)得到纯净的目标化合物,产率:77%。
1HNMR(500MHz,CDCl3)δ7.37-7.31(m,2H,ArH),7.31-7.24(m,3H,ArH),5.74(brs,1H,NH),4.45(d,J=4.7Hz,2H,NCH2),2.19(t,J=7.4Hz,2H,CH2),1.70(sext,J=7.2Hz,2H,CH2),0.96(t,J=7.3Hz,3H,CH3);13CNMR(125MHz,CDCl3)δ172.8,138.4,128.6,127.7,127.4,43.5,38.6,19.1,13.7。
Claims (5)
1.一种合成N-烷基酰胺的方法,其特征在于,所述的N-烷基酰胺I
是通过腈II
经水解成IV
再与化合物醇III反应后得到
其中,R1选自烷基、芳基、单或多取代芳基,单或多取代芳基为甲基苯基、甲氧基苯基、三氟甲基苯基、卤代苯基、呋喃基或噻酚基;
R2代表一个取代基,选自C5-C7烷基、芳基、单或多取代芳基,单或多取代芳基为甲基苯基、甲氧基苯基、三氟甲基苯基、三氟甲氧基苯基、卤代苯基、萘基、呋喃基、噻吩基或二茂铁甲基。
具体步骤如下:
步骤1、在反应容器中,加入腈II、过渡金属催化剂金的络合物、溶剂四氢呋喃和H2O;反应混合物在130-140℃下反应,冷却到室温,真空减压除去溶剂;
步骤2、加入化合物醇III、碱、过渡金属催化剂铱的络合物、溶剂甲苯,反应混合物在130℃下反应,然后通过柱分离,得到目标化合物。
2.根据权利要求1所述的合成N-烷基酰胺的方法,其特征是,步骤1中所述的金的络合物为[(IPr)AuNTf],其用量为腈的2-5mol%。
3.根据权利要求1所述的合成N-烷基酰胺的方法,其特征是,步骤2中所述的铱的络合物为[Cp*IrCl2]2,其用量为腈的1-2mol%。
4.根据权利要求1所述的合成N-烷基酰胺的方法,其特征是,步骤1中所述的反应时间为12小时或者微波反应6小时。
5.根据权利要求1所述的合成N-烷基酰胺的方法,其特征是,步骤2中所述的碱为碳酸铯或叔丁醇钾;所述的碱的摩尔量为肟摩尔量的0.1-0.4equiv.;所述的化合物醇的摩尔量为腈摩尔量的1.2-2equiv.;所述的反应时间为12小时或者微波反应3小时。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003321427A (ja) * | 2002-04-30 | 2003-11-11 | Toyota Motor Corp | アミド化合物およびアミノ化合物の製造方法 |
WO2012014760A1 (ja) * | 2010-07-28 | 2012-02-02 | 住友化学株式会社 | カルボン酸アミドの製造方法 |
CN103113176A (zh) * | 2013-02-02 | 2013-05-22 | 南京理工大学 | 一种合成n-烷基酰胺的方法 |
CN103664704A (zh) * | 2012-08-31 | 2014-03-26 | 南京理工大学 | 一种合成 n,n’-二取代基脲的方法 |
-
2015
- 2015-01-07 CN CN201510008044.3A patent/CN105820061A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003321427A (ja) * | 2002-04-30 | 2003-11-11 | Toyota Motor Corp | アミド化合物およびアミノ化合物の製造方法 |
WO2012014760A1 (ja) * | 2010-07-28 | 2012-02-02 | 住友化学株式会社 | カルボン酸アミドの製造方法 |
CN103664704A (zh) * | 2012-08-31 | 2014-03-26 | 南京理工大学 | 一种合成 n,n’-二取代基脲的方法 |
CN103113176A (zh) * | 2013-02-02 | 2013-05-22 | 南京理工大学 | 一种合成n-烷基酰胺的方法 |
Non-Patent Citations (1)
Title |
---|
LI FENG等: "Combination of gold and iridium catalysts for the synthesis of N-alkylated amides from nitriles and alcohols", 《CATAL. SCI. TECHNOL.》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112004796A (zh) * | 2018-04-27 | 2020-11-27 | 昭和电工株式会社 | N,n-二取代酰胺的制造方法及用于制造n,n-二取代酰胺的催化剂 |
CN112004796B (zh) * | 2018-04-27 | 2023-06-06 | 株式会社力森诺科 | N,n-二取代酰胺的制造方法及用于制造n,n-二取代酰胺的催化剂 |
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