CN114214651B - 一种电催化下α-羰基-α’-硫氰基亚砜叶立德的合成方法 - Google Patents
一种电催化下α-羰基-α’-硫氰基亚砜叶立德的合成方法 Download PDFInfo
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- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000012043 crude product Substances 0.000 claims abstract description 6
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 claims abstract description 6
- 239000000047 product Substances 0.000 claims abstract description 5
- 238000001308 synthesis method Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 3
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- 238000001914 filtration Methods 0.000 claims abstract 2
- 229940116357 potassium thiocyanate Drugs 0.000 claims abstract 2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 125000004182 2-chlorophenyl group Chemical group [H]C1=C([H])C(Cl)=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 claims description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 2
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 6
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- YLEIFZAVNWDOBM-ZTNXSLBXSA-N ac1l9hc7 Chemical compound C([C@H]12)C[C@@H](C([C@@H](O)CC3)(C)C)[C@@]43C[C@@]14CC[C@@]1(C)[C@@]2(C)C[C@@H]2O[C@]3(O)[C@H](O)C(C)(C)O[C@@H]3[C@@H](C)[C@H]12 YLEIFZAVNWDOBM-ZTNXSLBXSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
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- KSCRVOKQPYZBHZ-IXPOFIJOSA-N benzyl n-[(2s)-1-[[(2s)-1-[[(2s)-1-(1,3-benzothiazol-2-yl)-1-oxo-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]carbamate Chemical compound N([C@H](C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C[C@H]1C(NCC1)=O)C(=O)C=1SC2=CC=CC=C2N=1)C(C)C)C(=O)OCC1=CC=CC=C1 KSCRVOKQPYZBHZ-IXPOFIJOSA-N 0.000 description 1
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- 238000006257 total synthesis reaction Methods 0.000 description 1
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
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Abstract
本发明公开了属于有机合成技术领域的一种电催化下α‑羰基‑α’‑硫氰基亚砜叶立德的合成方法。所述方法为:向反应器中,加入摩尔比为1:2的α‑羰基亚砜叶立德与硫氰酸钾,加入乙腈比水为4.6mL:0.4mL作为溶剂,通过电催化策略进行反应。待反应完毕后,无水MgSO4干燥,抽滤,使用旋转蒸发仪浓缩得到粗产物,再经过硅胶柱层析分离得到目标产物。本发明提供的α‑羰基‑α’‑硫氰基亚砜叶立德的合成方法科学合理,合成途径绿色环保;合成方法简单,反应快速;目标化合物收率高,产品易于纯化等特点。其反应方程式如下:
Description
技术领域
本发明属于有机合成技术领域,具体涉及一种电催化下α-羰基-α’-硫氰基亚砜叶立德的合成方法。
背景技术
硫叶立德和亚砜叶立德在有机合成中发挥了重要作用,是全合成、化学材料和药物合成等的重要组成部分。这些叶立德也被证明可以替代重氮化合物用于金属卡宾类的反应((1)Eur.J.Org.Chem.,2013,5005–501.(2)Chin.J.Org.Chem.,2021,41,888-906)。此外,有机硫氰酸酯还可作为制备各种有价值的含硫化合物的通用中间体((1)Org.Lett.,2015,17,1716-1719.(2)Angew.Chem.,Int.Ed.,2015,54,5753–5756),例如磺酸、硫杂环、硫醇、硫化物、硫酯和硫代膦酸酯。
发明内容
本发明提供了一种电催化下制备α-羰基-α’-硫氰基亚砜叶立德的制备方法,此方法条件温和,操作简单,安全绿色廉价,并且官能团普适性广。
一种电催化下α-羰基-α’-硫氰基亚砜叶立德的合成方法,所述α-羰基-α’-硫氰基亚砜叶立德具有式Ⅰ所示的结构:
R取代基团选自苯基、4-甲基苯基、4-甲氧基苯基、4-氯苯基、3-甲基苯基、2-氯苯基、1-呋喃基、1-噻吩基、环己基、金刚烷基。其特征在于,向反应器中,加入α-羰基亚砜叶立德、KSCN。在溶剂中通过电催化促进反应,完毕后,干燥,抽滤,浓缩得到粗产物,粗产物使用硅胶柱层析分离得到目标产物,其化学反应过程见式Ⅱ:
所述的α-羰基亚砜叶立德与KSCN的摩尔比值为1:2。所述溶剂为乙腈:水(4.6mL:0.4mL),反应温度为20℃,反应时间为1.75h。
本发明的有益效果为:本发明提供了一种α-羰基-α’-硫氰基亚砜叶立德的合成途径,提供的电催化下α-羰基-α’-硫氰基亚砜叶立德合成方法科学合理,通过本方法得到了具有多种取代基的α-羰基-α’-硫氰基亚砜叶立德,其特点为:条件温和,操作简便,无需外加氧化剂与添加剂,安全绿色廉价,并且官能团普适性广。
附图说明
图1为实施例1制备的化合物2a的NMR图谱;
图2为实施例7制备的化合物2g的NMR图谱;
图3为实施例9制备的化合物2i的NMR图谱。
具体实施方式
下面结合附图和具体的实施例对本发明进一步详细的说明:
下述实施例中所述试验方法,如无特殊说明,均为常规方法;所述试剂和材料,如无特殊说明,均可从商业途径获得。
实施例1
α-羰基-α’-硫氰基亚砜叶立德2a的制备
向10mL三口瓶中加入α-苯甲酰基亚砜叶立德1a(0.2mmol,39.2mg)、KSCN(0.4mmol,38.9mg)加入乙腈:水(4.6mL:0.4mL)溶剂中,石墨毡作阳极,铂片作阴极,恒流5mA,在20℃下搅拌,反应1.75h。反应完毕后,无水MgSO4干燥,抽滤,使用旋转蒸发仪除去溶剂得到粗产物,粗产物经柱层析分离(200-300目硅胶)(石油醚/乙酸乙酯=1/1),使用旋转蒸发仪除去溶剂,得到目标产物α-苯甲酰基-α’-硫氰基亚砜叶立德2a,其收率为85%。
谱图解析数据2a:
1H NMR(500MHz,DMSO-d6)δ7.56–7.47(m,2H),7.44–7.32(m,3H),3.68(s,6H).13CNMR(125MHz,DMSO-d6)δ188.34,140.01,130.71,128.47,127.87,115.10,69.15,41.54.
实施例2
用1b代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据2b:
1H NMR(500MHz,DMSO-d6)δ7.52(d,J=7.7Hz,2H),7.27(d,J=7.7Hz,2H),3.74(s,6H),2.36(s,3H).13C NMR(125MHz,DMSO-d6)δ187.77,140.13,136.55,128.47,127.58,114.64,68.32,41.08,20.97.
实施例3
用1c代替实例1中的1a,其他条件同实例1,实验结果见表1。
1H NMR(500MHz,DMSO-d6)δ7.63(d,J=8.7Hz,2H),7.01(d,J=8.8Hz,2H),3.82(s,3H),3.73(s,6H).13C NMR(125MHz,DMSO-d6)δ186.91,160.93,131.32,129.68,113.19,55.26,41.14.
实施例4
用1d代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据2d:
1H NMR(500MHz,DMSO-d6)δ7.60(d,J=8.4Hz,2H),7.54(d,J=8.3Hz,2H),3.75(s,6H).13C NMR(125MHz,DMSO-d6)δ186.49,138.23,134.84,129.31,128.11,114.43,69.07,40.97.
实施例5
用1e代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据2e:
1H NMR(500MHz,DMSO-d6)δ7.41–7.33(m,1H),7.32–7.28(m,0H),3.75(s,2H),2.36(s,1H).13C NMR(125MHz,DMSO-d6)δ188.10,139.53,137.18,130.78,127.91,127.85,124.49,114.64,68.50,41.04,20.89.
实施例6
用1f代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据2f:
1H NMR(500MHz,DMSO-d6)δ7.54–7.49(m,1H),7.49–7.40(m,2H),7.35(dd,J=5.9,3.3Hz,1H),3.79(s,7H).13C NMR(125MHz,DMSO-d6)δ187.98,142.13,132.43,131.53,131.42,129.83,129.35,115.78,71.84,43.15.
实施例7
用1g代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据2g:
1H NMR(500MHz,DMSO-d6)δ7.92(d,J=1.7Hz,1H),7.32(d,J=3.5Hz,1H),6.69(dd,J=3.5,1.7Hz,1H),3.72(s,6H).13C NMR(125MHz,DMSO-d6)δ173.62,150.79,145.36,115.97,114.44,111.67,66.97,41.31.
实施例8
用1h代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据2h:
1H NMR(500MHz,DMSO-d6)δ7.97(d,J=3.9Hz,1H),7.85(d,J=5.0Hz,1H),7.31–7.10(m,1H),3.71(s,6H).13C NMR(125MHz,DMSO-d6)δ177.03,142.41,131.75,131.15,127.61,114.27,67.47,41.44.
实施例9
用1i代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据21:
1H NMR(500MHz,DMSO-d6)δ3.61(s,6H),3.18–2.98(m,1H),1.86–1.72(m,3H),1.66(d,J=13.2Hz,2H),1.42–1.21(m,4H),1.20–1.12(m,1H).13C NMR(125MHz,DMSO-d6)δ195.02,114.52,66.05,44.37,41.30,28.62,25.55,25.33.
实施例10
用1j代替实例1中的1a,其他条件同实例1,实验结果见表1。
谱图解析数据2j:
1H NMR(500MHz,DMSO-d6)δ3.51(s,6H),2.00(s,9H),1.68(s,6H).13C NMR(125MHz,DMSO-d6)δ196.30,114.94,66.69,43.93,41.74,37.86,36.20,27.88。
表1
Claims (2)
1.一种电催化下α-羰基-α’-硫氰基亚砜叶立德的合成方法,所述α-羰基-α’-硫氰基亚砜叶立德具有式Ⅰ所示的结构:
R取代基团选自苯基、4-甲基苯基、4-甲氧基苯基、4-氯苯基、3-甲基苯基、2-氯苯基、1-呋喃基、1-噻吩基、环己基、金刚烷基;其特征在于,向反应器中,加入α-羰基亚砜叶立德与硫氰酸钾,加入乙腈与水作为溶剂,通过电催化策略进行反应;待反应完毕后,用无水MgSO4干燥,抽滤,使用旋转蒸发仪浓缩得到粗产物,再经过硅胶柱层析分离得到目标产物;其化学反应过程见式Ⅱ:
2.按照权利要求1所述的合成方法,其特征在于:α-羰基亚砜叶立德与KSCN的摩尔比值为1:2;乙腈:水作为溶剂,体积比为4.6mL:0.4mL,石墨毡作阳极,铂片作阴极,在恒流5mA条件下,通过电催化进行反应,反应温度为20℃,反应时间为1.75h。
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CN113881956A (zh) * | 2021-10-11 | 2022-01-04 | 青岛科技大学 | 一种异硫氰酸苄酯类化合物的制备方法 |
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