CN110563551B - 一种合成反式2-烯-4-炔-1-醇类化合物的方法 - Google Patents
一种合成反式2-烯-4-炔-1-醇类化合物的方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- KAVKNHPXAMTURG-UHFFFAOYSA-N n-(4-bromonaphthalen-1-yl)acetamide Chemical compound C1=CC=C2C(NC(=O)C)=CC=C(Br)C2=C1 KAVKNHPXAMTURG-UHFFFAOYSA-N 0.000 claims abstract description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010931 gold Substances 0.000 claims abstract description 10
- 229910052737 gold Inorganic materials 0.000 claims abstract description 10
- SDJQAECFEXCEPR-UHFFFAOYSA-N 2-prop-1-ynyloxirane Chemical compound CC#CC1CO1 SDJQAECFEXCEPR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 239000003999 initiator Substances 0.000 claims abstract description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 21
- 238000004440 column chromatography Methods 0.000 claims description 18
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 238000004821 distillation Methods 0.000 claims description 7
- 239000003480 eluent Substances 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 7
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 claims description 3
- 125000001541 3-thienyl group Chemical group S1C([H])=C([*])C([H])=C1[H] 0.000 claims description 2
- 125000004860 4-ethylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])C([H])([H])[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
- PYLWMHQQBFSUBP-UHFFFAOYSA-N monofluorobenzene Chemical compound FC1=CC=CC=C1 PYLWMHQQBFSUBP-UHFFFAOYSA-N 0.000 claims description 2
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 2
- 239000002994 raw material Substances 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000012512 characterization method Methods 0.000 description 7
- 239000012074 organic phase Substances 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001345 alkine derivatives Chemical group 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- UEXCJVNBTNXOEH-UHFFFAOYSA-N Ethynylbenzene Chemical group C#CC1=CC=CC=C1 UEXCJVNBTNXOEH-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006471 dimerization reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical compound OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- PLVCYMZAEQRYHJ-UHFFFAOYSA-N (2-bromophenyl)boronic acid Chemical compound OB(O)C1=CC=CC=C1Br PLVCYMZAEQRYHJ-UHFFFAOYSA-N 0.000 description 1
- QRPSQQUYPMFERG-LFYBBSHMSA-N (e)-5-[3-(benzenesulfonamido)phenyl]-n-hydroxypent-2-en-4-ynamide Chemical compound ONC(=O)\C=C\C#CC1=CC=CC(NS(=O)(=O)C=2C=CC=CC=2)=C1 QRPSQQUYPMFERG-LFYBBSHMSA-N 0.000 description 1
- ZSBNTDOUKCHEHB-UHFFFAOYSA-N 2-(3-phenylprop-2-ynyl)oxirane Chemical compound C1OC1CC#CC1=CC=CC=C1 ZSBNTDOUKCHEHB-UHFFFAOYSA-N 0.000 description 1
- CYJZJGYYTFQQBY-UHFFFAOYSA-N 5-bromoisoquinoline Chemical compound N1=CC=C2C(Br)=CC=CC2=C1 CYJZJGYYTFQQBY-UHFFFAOYSA-N 0.000 description 1
- SEPHSYJRUBDUAL-UHFFFAOYSA-N C1C(O1)CC#CC2=CSC=C2 Chemical compound C1C(O1)CC#CC2=CSC=C2 SEPHSYJRUBDUAL-UHFFFAOYSA-N 0.000 description 1
- 229910003771 Gold(I) chloride Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical class [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- OKJPEAGHQZHRQV-UHFFFAOYSA-N Triiodomethane Natural products IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 125000000746 allylic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- SIPUZPBQZHNSDW-UHFFFAOYSA-N bis(2-methylpropyl)aluminum Chemical compound CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- XWXBFFVWEDOOIY-YRNVUSSQSA-N ethyl (e)-5-phenylpent-2-en-4-ynoate Chemical compound CCOC(=O)\C=C\C#CC1=CC=CC=C1 XWXBFFVWEDOOIY-YRNVUSSQSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- -1 oxamflatin Natural products 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229940126585 therapeutic drug Drugs 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
- B01J31/2442—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems
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- C07C29/10—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes
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Abstract
本发明公开了一种合成反式2‑烯‑4‑炔‑1‑醇类化合物的方法,所述的方法按照如下步骤进行制备:以式Ⅰ所示2‑丙炔基环氧乙烷为起始物,在金催化剂、四(3,5‑二(三氟甲基)苯基)硼酸钠、溶剂存在条件下,加热至80℃‑100℃反应过夜,得到反应液经分离纯化,制备得到式Ⅱ所示反式线性2‑炔‑4‑烯‑1‑醇类化合物;所述四(3,5‑二(三氟甲基)苯基)硼酸钠、金催化剂与式Ⅰ所示2‑丙炔基环氧乙烷的物质的量之比为0.05~0.1:0.02~0.05:1。本发明所述的原料及反应过程安全环保;产物的结构单一,选择性好,无异构体产生;原料易得,且对原料的构型没有特殊要求,反应步骤简单,且是一种合成反式2‑烯‑4‑炔‑1‑醇类化合物的新路线。
Description
技术领域
本发明涉及一种有机化合物的合成方法,具体地说涉及一种反式2-烯-4-炔-1-醇类化合物的制备方法。
背景技术
线性的反式烯炔化合物在生物活性化合物和天然化合物中扮演着一个重要的角色,包括oxamflatin,以及一种糖尿病治疗药物NNC 61-4655等,而且值得注意的是这些化合物的烯丙基位都是含氧官能团。2-炔-4-烯-1-醇类以及相关化合物在一些列活性物质的合成过程中是十分有用的前体。
2000年,Takeuchi,Ryo发现了一种以(E)-5-苯基戊-2-烯-4-炔酸乙酯为原料,二异丁基氢化铝为还原剂在-78℃下反应,以合成反式2-烯-4-炔-1-醇类化合物的方法(Journal of Organic Chemistry,65(5), 1558-1561;2000),但是此方法存在着所用的还原剂易燃比较危险,且原料必须是单一构型等缺点。
末端炔烃的选择性催化二聚反应本是形成烯炔结构的有效方法(Chem.Soc.Rev.2016,45,2212–2238),然而炔烃的二聚反应可导致形成线性的E/Z混合物或是形成了非线性产物,这取决于催化剂的选择。而且偶联两种不同的炔烃,选择性的生成空间结构单一的产物显得十分困难。2016年,Matthew G.Lauer发现了一种以钯催化苯乙炔与丙炔醇偶联生成反式2-烯-4-炔-1-醇类化合物的方法(ACS Catal. 2016,6,5834-5842),但是此方法存在着在产生目标产物的同时,会生成一定量的异构体导致难以分离,以及丙炔醇毒性较大等不足。
因此,开发一种简单的、通用的合成反式线性2-炔-4-烯-1-醇类化合物的方法是十分有必要的。
发明内容
针对现有技术的不足,本发明提供了一种通用,简便,高效的合成反式线性2-炔-4-烯-1-醇类化合物的方法。
本发明的技术方案是:
一种合成反式2-烯-4-炔-1-醇类化合物的方法,按照如下步骤进行制备:
以式Ⅰ所示2-丙炔基环氧乙烷为起始物,在金催化剂、四(3, 5-二(三氟甲基)苯基)硼酸钠、溶剂存在条件下,加热至80℃-100℃反应过夜,得到反应液经分离纯化,制备得到式Ⅱ所示反式线性2- 炔-4-烯-1-醇类化合物;所述四(3,5-二(三氟甲基)苯基)硼酸钠、金催化剂与式Ⅰ所示2-丙炔基环氧乙烷的物质的量之比为 0.05~0.1:0.02~0.05:1(优选为0.1:0.02:1);具体反应式如下:
其中,式Ⅰ或Ⅱ中,R为苯基、4-乙基苯基、2-甲基苯基、4-甲氧基苯基或3-噻吩基中的一种。
进一步,本发明所述的金催化剂如下:
再进一步,本发明所述的金催化剂的制备过程如下:
本发明所述的方法,所述的反应温度优选为90℃。
本发明所述的方法,所述溶剂为二氯乙烷、甲苯或氟苯中的一种,最优选为二氯乙烷。
本发明所述的方法,所述溶剂的最优用量以所述式Ⅰ所示2-丙炔基环氧乙烷的物质的量计为10L/mol。
本发明所述的方法,所述反应液的分离纯化为:将反应液冷却至室温后,在反应液中加入柱层析硅胶,并通过减压蒸馏除去溶剂,通过柱色谱分离,以石油醚/乙酸乙酯=5:1作为洗脱剂,收集含目标产物的洗脱液,减压蒸除溶剂得到目标产物。
进一步,所述柱层析硅胶为100-200目。
本发明所述式Ⅱ所示含N-二氟甲基类化合物优选为下列化合物之一:
与现有技术相比,本发明的有益效果是:
(1)原料及反应过程安全环保;
(2)产物的结构单一,选择性好,无异构体产生;
(3)原料易得,且对原料的构型没有特殊要求,反应步骤简单,且是一种合成反式2-烯-4-炔-1-醇类化合物的新路线。
具体实施方式
下面结合具体实施例对本发明作进一步详细说明,但本发明的保护范围不限于此:
实施例中所述的金催化剂的制备过程为:
A的合成:向装有磁子的三口瓶中加入5-溴异喹啉(10mmol), 2-溴苯基硼酸(1.06equiv.),四(三苯基膦)钯(5mol%),碳酸氢钠(4.5equiv.),并对其进行氮气保护,用注射器往瓶中加入20ml乙二醇二甲醚以及10ml去离子水,将体系加热至95℃反应过夜。待反应结束后,冷却至室温,用二氯甲烷萃取,收集有机相,并对水相再萃取两次,合并有机相,将有机相用水洗涤,并用无水硫酸钠干燥,随后用柱层析分离获得产物A。
B的合成:向装有磁子的圆底烧瓶中加入A(10mmol),以及30 ml四氢呋喃,室温搅拌下加入碘甲烷(1.5equiv.),反应24小时。反应结束后,有大量黄色固体析出,进行抽滤获得的固体即为目标产物。
C的合成:向装有磁子的圆底烧瓶中加入B(5mmol),以及10ml 甲醇,室温搅拌下加入硼氢化钠(3.0equiv.),反应12小时。反应结束后,向体系中加入饱和碳酸钠溶液进行淬灭,之后用二氯甲烷萃取,收集有机相,并对水相再萃取两次,合并有机相,将有机相用水洗涤,并用无水硫酸钠干燥,随后用柱层析分离获得产物C。
D的合成:向装有磁子的三口瓶中加入C(4mmol),醋酸钯(5 mol%),dippf(6mol%),叔丁醇钠(1.02equiv.),并对其进行氮气保护,用注射器往瓶中注入10mol干燥的甲苯,室温搅拌约20 分钟,待反应体系呈均相后,往体系中加入HPAd2(1.1equiv.),将体系加热至110℃反应过夜。反应结束后,冷却至室温,柱层析分离获得产物D。
表征数据:1H NMR(CDCl3,500MHz)δ:7.89(d,J=7.4Hz,1H),7.34 (pd,J=7.4,1.6Hz,2H),7.17-7.15(m,1H),7.12(t,J=7.5Hz,1H),7.00 (d,J=7.5Hz,1H),6.97(d,J=7.5Hz,1H),3.83(d,J=14.9Hz,1H), 3.56(d,J=14.9Hz,1H),2.77(dt,J=10.4,4.8Hz,1H),2.70-2.66(m, 1H),2.50–2.33(m,5H),2.03–1.80(m,18H),1.65(d,J=12.3Hz, 12H).13C NMR(CDCl3,125MHz)δ:150.12(d,J=33.9Hz),142.49(d, J=6.6Hz),136.83(d,J=2.4Hz),133.80,133.63,133.41,131.30, 130.89(d,J=6.6Hz),129.72(d,J=3.3Hz),128.11,125.29(d,J=4.6 Hz),124.18,58.20,52.82,45.79,42.03(d,J=13.1Hz),37.46(dd,J= 58.6,25.6Hz),36.93,28.87(d,J=8.5Hz),28.56.
E的合成:向装有磁子的圆底烧瓶中加入D(1.01equv.),DMS -AuCl(1mmol),以及6ml无水二氯甲烷,室温搅拌30min。反应结束后,将体系减压除去溶剂即获得产物E。
表征数据:1H NMR(CDCl3,500MHz)δ:7.86(t,J=7.3Hz,1H), 7.51(t,J=7.4Hz,1H),7.47(t,J=7.6Hz,1H),7.24–7.21 (m,1H),7.20(d,J=7.6Hz,1H),7.15(t,J=7.6Hz,1H),6.78 (d,J=7.3Hz,1H),3.83(d,J=14.9Hz,1H),3.71(d,J=14. 9Hz,1H),2.81–2.71(m,1H),2.62–2.52(m,2H),2.45(s,2 H),2.32–2.24(m,1H),2.23–1.91(m,18H),1.66(d,J=14.7 Hz,12H).13C NMR(CDCl3,125MHz)δ:149.43(d,J=13.6H z),140.88(d,J=6.1Hz),135.95,134.66(d,J=2.4Hz),133.30 (d,J=7.5Hz),131.34,130.75(d,J=2.2Hz),128.18,126.77, 126.19(d,J=6.6Hz),125.01,124.39(d,J=43.1Hz),58.16,5 2.18,45.84,42.73(dd,J=97.2,23.8Hz),42.24(dd,J=121.9, 2.2Hz),36.23(dd,J=4.3,1.4Hz),28.88,28.58(dd,J=30.8, 9.8Hz).
实施例1
将0.004mmol0.02mmol四(3,5-二(三氟甲基) 苯基)硼酸钠加入15mlschlenck管中,氮气保护完成后,再用注射器加入0.2mmol 2-(3-苯基-2-丙炔基)环氧乙烷和2mL DCE。接着,在90℃油浴下反应12小时。反应结束后,在反应液中加入两药匙柱层析硅胶(100-200目),并通过减压蒸馏除去溶剂,再通过柱色谱分离得到产物纯品(以石油醚/乙酸乙酯=5:1作为洗脱剂)。该物质为黄色液体,产率68%。
表征数据:1H NMR(500MHz,CDCl3)δ7.46-7.44(m,2H),7.34-7.32 (m,3H),6.37(dt,J=15.9,5.2Hz,1H),5.99(dt,J=15.9,1.8Hz,1H), 4.29(dd,J=5.2,1.8Hz,2H),1.66(s,1H).;13C NMR(125MHz,CDCl3) δ141.7,131.5,128.3,128.2,123.2,110.5,90.2,87.2,63.1.
实施例2
将0.01mmol0.02mmol四(3,5-二(三氟甲基)苯基)硼酸钠加入到15mlschlenck管中,氮气保护完成后,再用注射器加入0.2mmol 2-(3-(邻甲基)苯基-2-丙炔基)环氧乙烷和2m L DCE。接着,在90℃油浴下反应过夜。反应结束后,在反应液中加入两药匙柱层析硅胶(100-200目),并通过减压蒸馏除去溶剂,再通过柱色谱分离得到产物纯品(以石油醚/乙酸乙酯=5:1作为洗脱剂)。该物质为黄色液体,产率65%。
表征数据:1H NMR(500MHz,CDCl3)δ7.42(d,J=7.5Hz,1H), 7.23–7.20(m,2H),7.17–7.13(m,1H),6.36(dt,J=15.9,5.3Hz, 1H),6.03(dt,J=15.9,1.8Hz,1H),4.29(dd,J=5.3,1.8Hz, 2H),2.45(s,3H),1.63(s,1H);13C NMR(125MHz,CDCl3)δ1 41.3,140.1,131.8,129.4,128.2,125.5,123.0,110.8,91.1,89.1,63. 0,20.6.
实施例3
将0.004mmol0.01mmol四(3,5-二(三氟甲基)苯基) 硼酸钠加入到15mlschlenck管中,氮气保护完成后,再用注射器加入0.2mmol 2-(3-(对乙基)苯基-2-丙炔基)环氧乙烷和2mL D CE。接着,在90℃油浴下反应过夜。反应结束后,在反应液中加入两药匙柱层析硅胶(100-200目),并通过减压蒸馏除去溶剂,再通过柱色谱分离得到产物纯品(以石油醚/乙酸乙酯=5:1作为洗脱剂)。该物质为黄色液体,产率56%。
表征数据1H NMR(500MHz,CDCl3)δ7.37(m,2H),7.16(m,2 H),6.34(dt,J=15.9,5.3Hz,1H),5.98(dt,J=15.8,1.8Hz,1 H),4.27(dd,J=5.3,1.8Hz,2H),2.66(q,J=7.6Hz,2H),1.67 (s,1H),1.24(t,J=7.6Hz,3H);13C NMR(125MHz,CDCl3)δ 144.6,141.3,131.5,127.9,120.3,110.7,90.4,86.6,63.0,28.8,15. 3.
实施例4
将0.004mmol0.02mmol四(3,5-二(三氟甲基) 苯基)硼酸钠加入到15mlschlenck管中,氮气保护完成后,再用注射器加入0.2mmol 2-(3-(对甲氧基)苯基-2-丙炔基)环氧乙烷和 2mL DCE。接着,在80℃油浴下反应过夜。反应结束后,在反应液中加入两药匙柱层析硅胶(100-200目),并通过减压蒸馏除去溶剂,再通过柱色谱分离得到产物纯品(以石油醚/乙酸乙酯=5:1作为洗脱剂)。该物质为黄色液体,产率52%。
表征数据:1H NMR(500MHz,CDCl3)δ7.82(m,2H),7.37(m, 2H),6.29(dt,J=15.8,5.3Hz,1H),5.98(dt,J=15.9,1.7Hz,1 H),4.22(m,2H),3.78(s,2H),1.89(s,1H);13C NMR(125MHz, CDCl3)δ159.6,141.1,133.0,115.4,114.1,110.8,90.2,86.2,63.0, 55.3.
实施例5
将0.004mmol0.02mmol四(3,5-二(三氟甲基)苯基)硼酸钠加入到15mlschlenck管中,氮气保护完成后,再用注射器加入0.2mmol 2-(3-(3-噻吩基)-2-丙炔基)环氧乙烷和2mL 甲苯。接着,在90℃油浴下反应过夜。反应结束后,在反应液中加入两药匙柱层析硅胶(100-200目),并通过减压蒸馏除去溶剂,再通过柱色谱分离得到产物纯品(以石油醚/乙酸乙酯=5:1作为洗脱剂)。该物质为黄色液体,产率60%。
表征数据:1H NMR(500MHz,CDCl3)δ7.43(m,1H),7.27(m, 1H),7.11(dd,J=5.0,0.8Hz,1H),6.33(dt,J=15.9,5.2Hz,1 H),5.95(dt,J=15.9,1.6Hz,1H),4.27(m,2H),1.45(t,J=6.0 Hz,1H);13C NMR(125 MHz,CDCl3):δ141.7,129.8,128.6,12 5.4,122.3,110.4,87.0,85.4,63.0。
Claims (6)
3.如权利要求1所述的方法,其特征在于:所述的反应温度为90℃。
4.如权利要求1所述的方法,其特征在于:所述溶剂为二氯乙烷、甲苯或氟苯中的一种。
5.如权利要求1所述的方法,其特征在于:所述溶剂的加入量以所述式Ⅰ所示2-丙炔基环氧乙烷的物质的量计为10L/mol。
6.如权利要求1所述的方法,其特征在于:所述反应液的分离纯化为:将反应液冷却至室温后,在反应液中加入柱层析硅胶,并通过减压蒸馏除去溶剂,通过柱色谱分离,以石油醚/乙酸乙酯=5:1作为洗脱剂,收集含目标产物的洗脱液,减压蒸除溶剂得到目标产物。
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