CN105503722A - 一种异喹啉化合物的合成方法 - Google Patents
一种异喹啉化合物的合成方法 Download PDFInfo
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- -1 isoquinoline compound Chemical class 0.000 title claims abstract description 14
- AWJUIBRHMBBTKR-UHFFFAOYSA-N iso-quinoline Natural products C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title abstract description 7
- 230000002194 synthesizing effect Effects 0.000 title abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- 125000005843 halogen group Chemical group 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 10
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 17
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical group CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 9
- 229940126214 compound 3 Drugs 0.000 claims description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 8
- 238000010189 synthetic method Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 150000003863 ammonium salts Chemical class 0.000 claims description 6
- 238000004440 column chromatography Methods 0.000 claims description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 3
- 229940125904 compound 1 Drugs 0.000 claims description 3
- 229940125782 compound 2 Drugs 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 abstract description 4
- 150000002537 isoquinolines Chemical class 0.000 abstract description 4
- 125000004429 atom Chemical group 0.000 abstract 1
- 238000001308 synthesis method Methods 0.000 abstract 1
- 238000007039 two-step reaction Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 12
- 230000008018 melting Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical group [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 2
- 229930013930 alkaloid Natural products 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000001766 physiological effect Effects 0.000 description 2
- AFURUSCAEUVUJS-UHFFFAOYSA-N 3-(4-butylphenyl)isoquinoline Chemical compound C1=CC(CCCC)=CC=C1C1=CC2=CC=CC=C2C=N1 AFURUSCAEUVUJS-UHFFFAOYSA-N 0.000 description 1
- ZVWVUMJYIDUMDT-UHFFFAOYSA-N 3-(4-chlorophenyl)-7-methylisoquinoline Chemical compound CC1=CC=C2C=C(N=CC2=C1)C1=CC=C(C=C1)Cl ZVWVUMJYIDUMDT-UHFFFAOYSA-N 0.000 description 1
- GEZBAGGYZSZPGP-UHFFFAOYSA-N 3-(4-chlorophenyl)isoquinoline Chemical compound C1=CC(Cl)=CC=C1C1=CC2=CC=CC=C2C=N1 GEZBAGGYZSZPGP-UHFFFAOYSA-N 0.000 description 1
- QYFVPBVFXFGKHA-UHFFFAOYSA-N 3-(4-fluorophenyl)isoquinoline Chemical compound C1=CC(F)=CC=C1C1=CC2=CC=CC=C2C=N1 QYFVPBVFXFGKHA-UHFFFAOYSA-N 0.000 description 1
- VBCFPFDUNNOWIZ-UHFFFAOYSA-N 3-(4-methoxyphenyl)isoquinoline Chemical compound C1=CC(OC)=CC=C1C1=CC2=CC=CC=C2C=N1 VBCFPFDUNNOWIZ-UHFFFAOYSA-N 0.000 description 1
- RAFJYSPDEXOXKM-UHFFFAOYSA-N 3-(4-methylphenyl)isoquinoline Chemical compound C1=CC(C)=CC=C1C1=CC2=CC=CC=C2C=N1 RAFJYSPDEXOXKM-UHFFFAOYSA-N 0.000 description 1
- RBJOTRVJJWIIER-UHFFFAOYSA-N 3-phenylisoquinoline Chemical compound C1=CC=CC=C1C1=CC2=CC=CC=C2C=N1 RBJOTRVJJWIIER-UHFFFAOYSA-N 0.000 description 1
- CGFMKUZEMVKFFO-UHFFFAOYSA-N 7-chloro-3-(4-chlorophenyl)isoquinoline Chemical compound ClC1=CC=C2C=C(N=CC2=C1)C1=CC=C(C=C1)Cl CGFMKUZEMVKFFO-UHFFFAOYSA-N 0.000 description 1
- LDWRZVJCHAQSIM-UHFFFAOYSA-N 7-chloro-3-phenylisoquinoline Chemical compound ClC1=CC=C2C=C(N=CC2=C1)C1=CC=CC=C1 LDWRZVJCHAQSIM-UHFFFAOYSA-N 0.000 description 1
- KPFNJQUAHKJZEV-UHFFFAOYSA-N 7-methyl-3-phenylisoquinoline Chemical compound CC1=CC=C2C=C(N=CC2=C1)C1=CC=CC=C1 KPFNJQUAHKJZEV-UHFFFAOYSA-N 0.000 description 1
- 208000030507 AIDS Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000003288 anthiarrhythmic effect Effects 0.000 description 1
- 230000001760 anti-analgesic effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001093 anti-cancer Effects 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 238000002390 rotary evaporation Methods 0.000 description 1
- 238000005556 structure-activity relationship Methods 0.000 description 1
- 238000006257 total synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
- C07D217/12—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring
- C07D217/14—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring other than aralkyl radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
- C07D217/02—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ring; Alkylene-bis-isoquinolines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
- C07D217/12—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring
- C07D217/14—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring other than aralkyl radicals
- C07D217/16—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring other than aralkyl radicals substituted by oxygen atoms
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明公开了一种异喹啉化合物的合成方法。该异喹啉化合物如式I所示,其中R1为氢、卤素原子、烷基、烷氧基或氨基,R2为氢、卤素原子、烷基、烷氧基或氨基。本发明通过两步反应合成目标产物,合成方法简洁、快速,符合原子经济性,且目标化合物收率较高,为进一步研究式I化合物或相关化合物提供了必要基础。
Description
技术领域
本发明涉及有机化学合成领域,具体涉及一种异喹啉化合物的合成方法。
背景技术
含有异喹啉骨架结构的生物碱是一类重要的生物碱,这类生物碱具有极强的生理活性,一直是国内外化学家与药物学家研究开发利用的热点。无论是从天然产物中提取还是全合成或分子结构修饰,以及构效关系的研究,异喹啉类衍生物一直是寻找有开发应用前景的先导化合物和生物活性成分的源泉。其主要药理作用包括抗炎抗菌、抗心律失常、镇痛镇咳、保护心脑血管、抗艾滋、调解免疫作用以及抗癌等。如此重要的生理活性,加上副作用小的特点使这类物质具有非常高的开发利用价值和较为广阔的应用前景。因而开发简捷、高效合成异喹啉类化合物的方法显得尤为重要。
发明内容
本发明的目的在于提供一种异喹啉化合物的合成方法,如式I所示:
其中,R1为氢、卤素原子、烷基、烷氧基或氨基,R2为氢、卤素原子、烷基、烷氧基或氨基。
上述的异喹啉化合物的合成方法,包括如下步骤:
(1)中间体化合物3的制备:
取1mmol的化合物1、1mmol的化合物2、0.15mmol的CuI、0.06mmol的Pd(PPh3)2Cl2和2mmol的三乙胺溶于5mL的四氢呋喃中,氮气保护下,加热回流,TLC监测反应进程,待反应完全,将反应物冷却到室温,加入适量的水,然后分液萃取,干燥,再进行柱层析,得到化合物3;
(2)目标化合物4的制备:
将化合物3、铵盐和金属催化剂溶于溶剂中,所述化合物3、铵盐和金属催化剂的物质的量之比为1∶1-5∶0.1-3,60-100度下搅拌,TLC监测反应进程,待反应完全,停止反应,将反应物冷却至室温,减压旋蒸除去溶剂,残留物进行柱层析,得到式I所示的目标产物;
以上各化合物均以反应式中各化合物下面序号加以区分,其中,R1为氢、卤素原子、烷基、烷氧基或氨基,R2为氢、卤素原子、烷基、烷氧基或氨基。
进一步地,R1优选为H、Cl或Me。
进一步地,R2优选为H、OMe、F、Cl、n-Bu或Me。
进一步地,步骤(2)中,所述的铵盐优选碳酸氢铵。
进一步地,步骤(2)中,所述的溶剂优选乙腈。
进一步地,步骤(2)中,所述的金属催化剂优选硝酸银。
进一步地,步骤(2)中,反应温度优选100℃。
具体实施方式
以下通过具体实施例对本发明做进一步地详细说明,但不应将此理解为本发明上述主题的范围仅限于以下的实施例。凡基于本发明上述内容所实现的技术均属于本发明的范围。
本发明所用仪器与试剂:
核磁共振仪:BrukerAV-II500MHzNMR,TMS为内标,CDCl3为溶剂;红外光谱仪:TFS-40型,KBr压片;熔点仪:XT-4型熔点测定仪。
所用试剂均为市售化学纯或分析纯。
实施例1
本发明化合物的合成
本发明化合物制备途径如下:
4a:R1=H,R2=H;4b:R1=Me,R2=H;4c:R1=Cl,R2=H;4d:R1=Me,R2=Me;4e:R1=Me,R2=Cl;4f:R1=Cl,R2=Me;
4g:R1=Cl,R2=Cl;4h:R1=H,R2=Me,4i:R1=H,R2=n-Bu;4j:R1=H,R2=OMe;4k:R1=H,R2=F;4l:R1=H,R2=Cl,
(1)中间体化合物3a-3l的合成:
取1mmol的化合物1、1mmol的化合物2、0.15mmol的CuI、0.06mmol的Pd(PPh3)2Cl2和2mmol的三乙胺溶于5mL的四氢呋喃中,氮气保护下,加热回流,TLC监测反应进程,待反应完全,将反应物冷却到室温,加入适量的水,然后分液萃取,干燥,再进行柱层析,得到化合物3a-3l。
(2)目标化合物4a-4l的合成:
取1mmol的化合物3、3mmol的碳酸氢铵和0.3mmol的硝酸银溶于乙腈中,100度下搅拌反应,TLC监测反应进程,待反应完全,停止反应,将反应物冷却至室温,减压旋蒸除去溶剂,残留物进行柱层析,得到式I所示的目标产物。
4a,3-苯基异喹啉,白色固体,产率57%,1HNMR(500MHz,CDCl3)δ9.37(s,1H,ArH),8.16(d,J=7.5Hz,2H,ArH),8.10(s,1H,ArH),8.02(d,J=8.0Hz,1H,ArH),7.91-7.89(d,J=8.0Hz,1H,ArH),7.75-7.70(m,1H,ArH),7.63-7.60(m,1H,ArH),7.56-7.53(m,2H,ArH),7.47-7.44(m,1H,ArH).13CNMR(125MHz,CDCl3)δ152.5,151.3,139.6,136.7,130.6,128.8,128.6,127.8,127.6,127.1,127.0,126.9,116.6。
4b,7-甲基-3-苯基异喹啉,浅黄色固体,产率56%,1HNMR(500MHz,CDCl3)δ9.24(s,1H,ArH),8.11(d,J=7.5Hz,2H,ArH),8.01(s,1H,ArH),7.77-7.71(m,2H,ArH),7.5-7.48(m,3H,ArH),7.42-7.38(m,1H,ArH),2.54(s,3H,Ar-CH3).13CNMR(125MHz,CDCl3)δ151.8,150.5,139.7,137.1,134.9,132.9,128.8,128.4,128.0,126.9,126.7,126.4,116.4,21.8。
4c,7-氯-3-苯基异喹啉,浅绿色固体,产率46%,1HNMR(500MHz,CDCl3)δ9.25(s,1H,ArH),8.12-8.08(m,2H,ArH),8.02(s,1H,ArH),7.95(d,J=1.5Hz,1H,ArH),7.79(d,J=9.0Hz,1H,ArH),7.61(dd,J=9.0,2.0Hz,1H,ArH),7.52-7.49(m,2H,ArH),7.44-7.43(m,1H,ArH).13CNMR(125MHz,CDCl3)δ151.7,151.4,139.1,134.9,132.5,131.6,128.9,128.8,128.6,128.1,127.0,126.3,116.2。
4d,7-甲基-3-(4-甲基苯基)异喹啉,浅红色固体,产率51%,熔点148~149℃,1HNMR(500MHz,CDCl3)δ9.22(s,1H,ArH),8.00(d,J=8.0Hz,2H,ArH),7.97(s,1H,ArH),7.74-7.70(m,2H,ArH),7.49(dd,J=8.5,1.0Hz,1H,ArH),7.30(d,J=8.0Hz,2H,ArH),2.53(s,3H,Ar-CH3),2.41(s,3H,Ar-CH3).13CNMR(125MHz,CDCl3)δ151.7,150.6,138.2,136.9,136.8,135.0,132.8,129.5,127.9,126.7,126.7,126.3,115.8,21.8,21.3.IR(KBr)v3433,3017,2919,2857,1590,1511,1445,1278,1159,890,825,558cm-1。
4e,7-甲基-3-(4-氯苯基)异喹啉,黄色固体,产率60%,熔点149~150℃,1HNMR(500MHz,CDCl3)δ9.22(s,1H,ArH),8.04(d,J=8.5Hz,2H,ArH),7.98(s,1H,ArH),7.75(d,J=9.0Hz,2H,ArH),7.54-7.52(m,1H,ArH),7.45(d,J=8.5Hz,2H,ArH),2.55(s,3H,Ar-CH3).13CNMR(125MHz,CDCl3)δ151.9,149.3,138.2,137.3,134.8,134.4,133.0,128.9,128.1,128.1,126.7,126.4,116.2,21.8.IR(KBr)v3434,3018,2916,2855,1587,1493,1446,1089,1008,880,831,559cm-1。
4f,7-氯-3-(4-甲基苯基)异喹啉,绿色固体,产率55%,熔点159~160℃,1HNMR(500MHz,CDCl3)δ9.23(s,1H,ArH),8.01(s,1H,ArH),7.99(d,J=3.5Hz,2H,ArH),7.94(d,J=1.5Hz,1H,ArH),7.78(d,J=9.0Hz,1H,ArH),7.59(dd,J=9.0,2.0Hz,1H,ArH),7.31(d,J=8.0Hz,2H,ArH),2.42(s,3H,Ar-CH3).13CNMR(125MHz,CDCl3)δ151.8,151.3,138.8,136.4,135.0,132.3,131.5,129.6,128.5,128.0,126.8,126.3,115.6,21.3.IR(KBr)v3433,3024,2919,2856,1569,1511,1475,1402,948,879,826,562cm-1。
4g,7-氯-3-(4-氯苯基)异喹啉,浅绿色固体,产率39%,熔点157~158℃,1HNMR(500MHz,CDCl3)δ9.22(s,1H,ArH),8.05-8.02(m,2H,ArH),7.98(s,1H,ArH),7.94(d,J=1.5Hz,1H,ArH),7.78(d,J=9.0Hz,1H,ArH),7.62(dd,J=8.5,2.0Hz,1H,ArH),7.49-7.43(m,2H,ArH).13CNMR(125MHz,CDCl3)δ151.5,150.4,137.5,134.9,134.8,132.8,131.7,129.0,128.6,128.2,126.4,116.0.IR(KBr)v3441,3044,2925,2857,1564,1488,1403,1072,876,827,671,558cm-1。
4h,3-(4-甲基苯基)异喹啉,浅黄色固体,产率61%,1HNMR(500MHz,CDCl3)δ9.31(s,1H),8.04-8.00(m,3H,ArH),7.95(d,J=7.5Hz,1H,ArH),7.83-7.81(m,1H,ArH),7.68-7.62(m,1H,ArH),7.55-7.51(m,1H,ArH),7.30(d,J=8.0Hz,2H,ArH),2.41(s,3H,Ar-CH3).13CNMR(125MHz,CDCl3)δ152.4,151.3,138.5,136.8,136.7,130.5,129.6,127.7,127.6,126.9,116.0,21.3。
4i,3-(4-正丁基苯基)异喹啉,浅黄色固体,产率60%,熔点54~55℃,1HNMR(500MHz,CDCl3)δ9.32(s,1H,ArH),8.07-8.01(m,3H,ArH),7.97(d,J=8.0Hz,1H,ArH),7.85(d,J=8.0Hz,1H,ArH),7.70-7.63(m,1H,ArH),7.58-7.53(m,1H,ArH),7.32(d,J=8.0Hz,2H,ArH),2.68(t,J=7.5Hz,2H,Ar-CH2-),1.69-1.62(m,2H,-CH2-Et),1.43-1.36(m,2H,-CH2-Me),0.95(t,J=7.5Hz,3H,-CH3).13CNMR(125MHz,CDCl3)δ152.4,151.4,143.5,137.0,136.7,130.4,128.9,127.7,127.6,126.9,126.9,126.8,116.0,35.4,33.6,22.4,14.0.IR(KBr)v3438,2956,2925,2854,1624,1585,1442,1402,1138,835,746,682cm-1。
4j,3-(4-甲氧基苯基)异喹啉,浅黄色固体,产率62%,1HNMR(500MHz,CDCl3)δ9.29(s,1H,ArH),8.09-8.06(m,2H,ArH),7.97(s,1H,ArH),7.94(d,J=8.0Hz,1H,ArH),7.81(d,J=8.0Hz,1H,ArH),7.67-7.62(m,1H,ArH),7.55-7.50(m,1H,ArH),7.05-7.01(m,2H,ArH),3.86(s,3H,-OCH3).13CNMR(125MHz,CDCl3)δ160.1,152.3,151.0,136.8,132.2,130.5,128.2,127.6,127.4,126.8,126.7,115.4,114.2,55.4。
4k,3-(4-氟苯基)异喹啉,浅黄色固体,产率56%,1HNMR(500MHz,CDCl3)δ9.31(s,1H,ArH),8.12-8.07(m,2H,ArH),7.99(s,1H,ArH),7.97(d,J=8.5Hz,1H,ArH),7.84(d,J=8.0Hz,1H,ArH),7.71-7.66(m,1H,ArH),7.60-7.55(m,1H,ArH),7.21-7.16(m,2H,ArH).13CNMR(125MHz,CDCl3)δ164.3,162.3,152.5,150.3,136.6,135.8,135.7,130.7,128.8,128.7,127.7,127.6,127.2,126.9,116.2,115.8,115.6。
4l,3-(4-氯苯基)异喹啉,黄色固体,产率52%,1HNMR(500MHz,CDCl3)δ9.30(s,1H,ArH),8.08-8.03(m,2H,ArH),8.00(s,1H,ArH),7.96(d,J=8.0Hz,1H,ArH),7.83(d,J=8.0Hz,1H,ArH),7.70-7.66(m,1H,ArH),7.60-7.55(m,1H,ArH),7.48-7.43(m,2H,ArH).13CNMR(125MHz,CDCl3)δ152.5,150.0,138.0,136.6,134.6,130.7,129.0,128.2,127.8,127.6,127.3,126.9,116.4。
Claims (6)
1.一种异喹啉化合物的合成方法,该异喹啉化合物如式I所示,
其中,R1为氢、卤素原子、烷基、烷氧基或氨基,R2为氢、卤素原子、烷基、烷氧基或氨基;其特征在于,它包括如下步骤:
(1)中间体化合物3的制备
取1mmol的化合物1、1mmol的化合物2、0.15mmol的CuI、0.06mmol的Pd(PPh3)2Cl2和2mmol的三乙胺溶于5mL的四氢呋喃中,氮气保护下,加热回流,TLC监测反应进程,待反应完全,将反应物冷却到室温,加入适量的水,然后分液萃取,干燥,再进行柱层析,得到化合物3;
(2)目标化合物4的制备
将化合物3、铵盐和金属催化剂溶于溶剂中,所述化合物3、铵盐和金属催化剂的物质的量之比为1∶1-5∶0.1-3,60-100度下搅拌,TLC监测反应进程,待反应完全,停止反应,将反应物冷却至室温,减压旋蒸除去溶剂,残留物进行柱层析,得到式I所示的目标产物;
以上各化合物均以反应式中各化合物下面序号加以区分,其中,R1为氢、卤素原子、烷基、烷氧基或氨基,R2为氢、卤素原子、烷基、烷氧基或氨基。
2.根据权利要求2所述的异喹啉化合物的合成方法,其特征在于:R1为H、Cl或Me;R2为H、OMe、F、Cl、n-Bu或Me。
3.根据权利要求2所述的异喹啉化合物的合成方法,其特征在于:步骤(2)中,所采用的铵盐为碳酸氢铵。
4.根据权利要求2所述的异喹啉化合物的合成方法,其特征在于:步骤(2)中,所述的溶剂为乙腈。
5.根据权利要求2所述的异喹啉化合物的合成方法,其特征在于:步骤(2)中,硝酸银的用量为0.3个当量。
6.根据权利要求2所述的异喹啉化合物的合成方法,其特征在于:步骤(2)中,所述的反应温度为100℃。
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