CN110343042A - 一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法 - Google Patents

一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法 Download PDF

Info

Publication number
CN110343042A
CN110343042A CN201910555223.7A CN201910555223A CN110343042A CN 110343042 A CN110343042 A CN 110343042A CN 201910555223 A CN201910555223 A CN 201910555223A CN 110343042 A CN110343042 A CN 110343042A
Authority
CN
China
Prior art keywords
added
trifluoromethanesulfonic acid
methyl
cdcl
nmr
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910555223.7A
Other languages
English (en)
Other versions
CN110343042B (zh
Inventor
李欢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wenzhou University
Original Assignee
Wenzhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wenzhou University filed Critical Wenzhou University
Priority to CN201910555223.7A priority Critical patent/CN110343042B/zh
Publication of CN110343042A publication Critical patent/CN110343042A/zh
Application granted granted Critical
Publication of CN110343042B publication Critical patent/CN110343042B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06Preparation of nitro compounds
    • C07C201/12Preparation of nitro compounds by reactions not involving the formation of nitro groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
    • C07C319/20Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/30Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/30Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • C07C67/343Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/56Ring systems containing three or more rings
    • C07D209/58[b]- or [c]-condensed
    • C07D209/70[b]- or [c]-condensed containing carbocyclic rings other than six-membered
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D333/00Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/50Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
    • C07D333/78Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems condensed with rings other than six-membered or with ring systems containing such rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/02Systems containing only non-condensed rings with a three-membered ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00Systems containing at least three condensed rings
    • C07C2603/02Ortho- or ortho- and peri-condensed systems
    • C07C2603/04Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/06Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members
    • C07C2603/10Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings
    • C07C2603/12Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings only one five-membered ring
    • C07C2603/18Fluorenes; Hydrogenated fluorenes
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00Systems containing at least three condensed rings
    • C07C2603/02Ortho- or ortho- and peri-condensed systems
    • C07C2603/52Ortho- or ortho- and peri-condensed systems containing five condensed rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

本发明公开了2‑((9‑氢芴‑9‑基)甲基)丙二酸酯的合成方法。本发明通过三氟甲磺酸催化作用实现了2‑联芳基环丙基‑1,1‑二羧酸酯的开环环化反应合成了2‑((9‑氢芴‑9‑基)甲基)丙二酸酯。具体方法为使用六氟异丙醇做为反应溶剂,加入1~100mol%的三氟甲磺酸,在70℃加热条件下反应得到目标产物。本发明使用的原料容易制备,操作简单,收率高,普适性很广,方法可靠。

Description

一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法
技术领域
本发明涉及有机化学合成技术领域,具体是指一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法。
背景技术
含有3-(9-氢芴-9-基)丙酰基结构的化合物在药物化学有重要的应用价值。Smith等人合成了一种3-(9-氢芴-9-基)丙酸酯结构的化合物,对哺乳动物核糖核苷酸还原酶具有很强的抑制作用,IC50=40-50μM(Bioorg.Med.Chem.Lett.2005,15,5146–5149)。Vederas等人合成了含有3-(9-氢芴-9-基)丙酰胺结构的多肽,对大肠杆菌和空肠弯曲菌具有较好的抑制作用(J.Med.Chem.2014,57,1127-1131)。
目前3-(9-氢芴-9-基)丙酸或其酯的合成方法都需要以9-氢芴或其类似物作为原料出发。Matsumoto等人使用9-氢芴和丙烯酸乙酯在四丁基氟化铵作用下制得3-(9-氢芴-9-基)丙酸乙酯,但收率仅有4%,而且有一些双加成的产物生成(Synthesis,1984,164-166)。
Ulijn等人使用类似的方法,将9-氢芴和3-溴丙酸甲酯在氢化钠作用下反应制得3-(9-氢芴-9-基)丙酸乙酯,但收率仅有20%(Chem.Commun.2013,49,10587-10589)。
Amin等人先将苯并芴制成苯并芴基甲酸酯,再在碱性条件下可以高效地跟丙烯酸甲酯加成,最后水解脱去跟芴基相连的酯基得到产物。(J.Org.Chem.1984,49,1091-1095;J.Org.Chem.1986,51,1206-1211)。Rice等人使用相同的策略跟丙烯腈加成也到了类似的结果(J.Org.Chem.1987,52,849-855)。该方法可以有效避免多加成产物的生成,但是合成步骤偏长。
Gualtieri等人使用9-氢芴-9-甲醛作为底物,先进行Wittig反应,再用钯碳催化氢化还原烯烃得到3-(9-氢芴-9-基)丙酸乙酯(J.Med.Chem.1985,28,1621-1628)。
但是使用Wittig试剂会产生大量的反应废弃物,而且使用昂贵的过渡金属也使得方法的经济性较差。
发明内容
本发明实施例所要解决的技术问题在于,提供一种原子经济性高,收率高,官能团兼容性好的2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法。
为实现上述目的,本发明的技术方案是:在氮气氛围中,在强酸催化条件下,下式(Ⅰ)所示2-联芳基环丙基-1,1-二羧酸酯发生三元环开环和分子内芳基化环化反应,制得(Ⅱ)所示2-((9-氢芴-9-基)甲基)丙二酸酯。其反应式为:
上述式中,R是Et、Me、i-Pr;
Ar1是取代芳基,其取代基有甲基、硝基、卤素;
Ar2为取代芳基或杂芳基,芳基取代基有甲基、甲氧基、羟基、甲硫基、卤素、三氟甲基,杂芳基有噻吩、苯并噻吩、吲哚;
所述强酸催化剂为三氟甲磺酸;
所述溶剂为六氟异丙醇;
以摩尔比计算,式(Ⅰ)所示化合物在溶剂中的摩尔浓度为0.01mol/L;
以摩尔比计算,式(Ⅰ)所示化合物与三氟甲磺酸的摩尔比为1:0.01~1:1,一般为1:0.1;
制备(II)所示化合物,反应温度为70℃,反应时间2小时。
本发明人通过深入细致研究,发现一种过量强酸存在的条件下2-联芳基环丙基-1,1-二羧酸酯发生分子内开环环化反应,制得2-((9-氢芴-9-基)甲基)丙二酸酯的方法。该方法原子经济性高,收率高,官能团兼容性好。
本发明具有以下优点和创新之处:
(1)原料(式(Ⅰ)所示化合物)容易制备;
(2)三氟甲磺酸较为廉价,而反应一般仅需要催化量(10mol%)的三氟甲磺酸;
(3)2-((9-氢芴-9-基)甲基)丙二酸酯可以在一定的条件下高效转化为3-(9-氢芴-9-基)丙酸;
(4)这是2-芳基环丙基-1,1-二羧酸酯的分子内开环芳基化反应,适用的底物类型广泛,官能团兼容性优异。
本发明与现有技术相比较的有益效果:
采用本发明方法制备2-((9-氢芴-9-基)甲基)丙二酸酯品质高,收率高;原料(式(Ⅰ)所示化合物)容易制备,反应普适性很好,原子经济性高,反应条件相对温和,产物中带有的丙二酸酯结构适于后期多种衍生化反应。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合实施例对本发明作进一步地详细描述。
本实施例所用的原料均参照如下方法分两步合成:
第一步:在圆底烧瓶中加入2-联苯甲醛(100mmol)、丙二酸二乙酯(100mmol)、哌啶乙酸盐(10mmol)和甲苯(100mL),安装油水分离器,加热回流分出反应产生的水。当原料全部反应完全后,减压整理除去溶剂,残留物通过柱层析提纯化,得到所述式所示产物B,产率为87%。
1H NMR(400MHz,CDCl3)δ7.67(s,1H),7.50-7.31(m,9H),4.28(q,J=7.2Hz,2H),4.25(q,J=7.2Hz,2H),1.28(t,J=7.2Hz,3H),1.21(t,J=7.2Hz,3H).13C NMR(125MHz,CDCl3)δ166.41,163.88,143.55,142.50,139.76,129.98,129.93,129.70,128.49,128.29,127.78,127.47,127.30,61.45,61.41,14.06,13.84.
第二步:在Schlenk瓶中加入NaH(103mmol),氮气保护,加入N,N-二甲基甲酰胺(160mL)。冰水浴冷却,加入三甲基碘化亚砜(103mmol),反应0.5小时。加入B(86mmol)的N,N-二甲基甲酰胺溶液(80mL),先在冰水浴条件下反应0.5小时,再室温反应0.5小时。倒入到冰(100g)和饱和氯化铵溶液(60mL)的混合液中,用乙酸乙酯萃取两次,合并有机相,依次用水合饱和氯化钠溶液洗涤,再用无水硫酸钠干燥,最后减压蒸馏除去溶剂。残留物通过柱层析提纯化,得到所述式所示产物,产率为75%。
1H NMR(400MHz,CDCl3)δ7.46(d,J=7.4Hz,2H),7.41-7.24(m,6H),7.05(d,J=7.3Hz,1H),4.21-4.08(m,2H),3.89-3.84(m,2H),2.99(t,J=8.8Hz,1H),2.19(dd,J=5.6Hz,J=8.0Hz,1H),1.65(dd,J=5.6Hz,J=9.2Hz,1H),1.22(t,J=7.2Hz,3H),0.86(t,J=7.1Hz,3H).13C NMR(125MHz,CDCl3)δ169.10,166.54,144.02,141.00,131.85,129.84,129.37,127.96,127.21,127.07,126.90,126.06,61.34,61.13,38.71,31.96,18.87,14.13,13.65。
实施例1:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为92%。
1H NMR(400MHz,CDCl3)δ7.76(d,J=7.4Hz,2H),7.54(d,J=7.4Hz,2H),7.38(t,J=7.4Hz,2H),7.31(t,J=7.4Hz,2H),4.09(m,3H),3.99-3.94(m,2H),3.19(t,J=7.3Hz,1H),2.68-2.65(m,2H),1.15(t,J=7.1Hz,6H).13C NMR(125MHz,CDCl3)δ169.36,145.51,141.29,127.40,126.95,124.86,119.91,61.35,48.86,45.34,31.69,13.89。
实施例2:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为89%。
1H NMR(400MHz,CDCl3)δ7.76(d,J=7.5Hz,2H),7.52(d,J=7.4Hz,2H),7.38(t,J=7.3Hz,2H),7.31(t,J=7.4Hz,2H),4.04(t,J=5.7Hz,1H),3.52(s,6H),3.15(t,J=7.2Hz,1H),2.72(dd,J=5.9Hz,J=7.0Hz,2H).13C NMR(125MHz,CDCl3)δ169.72,145.21,141.32,127.44,126.95,124.79,119.95,52.36,48.25,45.31,31.57。
实施例3:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为49%。
1H NMR(400MHz,CDCl3)δ7.75(d,J=7.6Hz,2H),7.55(d,J=7.2Hz,2H),7.38(t,J=7.2Hz,2H),7.31(t,J=7.6Hz,2H),4.94-4.85(hept,J=6.3Hz,1H),3.99(t,J=6.4Hz,1H),3.21(t,J=7.2Hz,1H),2.60(t,J=6.4Hz,2H),1.18(d,J=6.0Hz,6H),1.12(d,J=6.0Hz,6H).13C NMR(125MHz,CDCl3)δ168.86,145.77,141.18,127.35,126.93(2C),124.92,119.89,68.88,49.48,45.33,31.71,21.52,21.47。
实施例4:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为92%。
1H NMR(400MHz,CDCl3)δ7.70(d,J=7.5Hz,1H),7.63(d,J=7.7Hz,1H),7.51(d,J=7.4Hz,1H),7.37-7.34(m,2H),7.28-7.25(m,1H),7.18(d,J=7.7Hz,1H),4.10-4.02(m,2H),3.99-3.91(m,3H),3.23(t,J=7.3Hz,1H),2.69-2.57(m,2H),2.43(s,3H),1.17(t,J=7.2Hz,3H),1.16(t,J=7.0Hz,3H).13C NMR(125MHz,CDCl3)δ169.38,145.83,145.39,141.37,138.64,136.82,128.22,127.32,126.43,125.50,124.81,119.64,119.57,61.32,61.30,48.94,45.15,31.81,21.63,13.89。
实施例5:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为93%。
1H NMR(400MHz,CDCl3)δ7.65(d,J=3.0Hz,1H),7.63(d,J=3.8Hz,1H),7.49(d,J=7.4Hz,1H),7.34(t,J=7.4Hz,1H);7.23(dt,J=0.8Hz,J=7.8Hz,1H);7.08(d,J=2.1Hz,1H),6.93(dd,J=2.3Hz,J=8.3Hz,1H),4.09-4.03(m,2H),4.00-3.93(m,3H),3.87(s,3H),3.21(t,J=7.2Hz 1H);2.71-2.57(m,2H),1.16(t,J=7.2Hz,3H),1.15(t,J=7.2Hz,3H).13C NMR(125MHz,CDCl3)δ169.35,169.33,159.41,147.34,145.00,141.25,134.18,127.37,125.76,124.69,120.59,119.07,113.60,110.39,61.33,55.50,48.76,45.36,31.79,13.88。
实施例6:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为86%。
1H NMR(400MHz,CDCl3)δ7.69(d,J=7.5Hz,1H),7.65(d,J=8.0Hz,1H),7.51(d,J=7.4Hz,1H),7.42(s,1H),7.36(t,J=7.4Hz,1H),7.30-7.26(m,2H),4.10-4.06(m,2H),4.02-3.94(m,3H),3.17(t,J=7.2Hz,1H),2.72-2.59(m,2H),2.55(s,3H),1.16(t,J=7.1Hz,6H).13C NMR(125MHz,CDCl3)δ169.27,169.23,146.27,145.08,140.85,138.65,137.14,127.44,126.72,126.11,124.76,123.14,120.11,119.63,61.35,61.33,48.72,45.21,31.54,16.21,13.85。
实施例7:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.003mmol,0.01摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为83%。
1H NMR(400MHz,CDCl3)δ7.64(d,J=7.5Hz,1H),7.60(d,J=8.2Hz,1H),7.48(d,J=7.5Hz,1H),7.34(t,J=7.5Hz,1H),7.23(dt,J=1.0Hz,J=7.5Hz,1H),7.02(d,J=2.2Hz,1H),6.87(dd,J=2.3Hz,J=8.2Hz,1H),5.46(s,1H),4.11-4.03(m,2H),4.02-3.91(m,3H),3.18(t,J=7.2Hz,1H),2.68-2.64(m,2H),1.16(t,J=7.2Hz,3H),1.15(t,J=7.2Hz,3H).13C NMR(125MHz,CDCl3)δ169.90,169.60,155.71,147.34,144.74,141.37,134.03,127.40,125.73,124.61,120.80,118.99,114.87,112.18,61.63,61.54,48.68,45.25,31.58,13.82,13.80。
实施例8:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为84%。
1H NMR(400MHz,CDCl3)δ7.72(d,J=7.4Hz,1H),7.66(s,1H),7.61(d,J=8.1Hz,1H),7.53-7.49(m,2H),7.38(t,J=7.2Hz,1H),7.35-7.31(m,1H),4.11-3.92(m,5H),3.14(t,J=7.3Hz,1H),2.72-2.58(m,2H),1.18(t,J=7.2Hz,3H),1.16(t,J=7.2Hz,3H).13CNMR(125MHz,CDCl3)δ169.13,169.11,147.56,145.15,140.29,140.26,130.59,128.12,127.64,127.40,124.87,121.21,120.75,120.01,61.50,61.44,48.76,45.36,31.40,13.92,13.90。
实施例9:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为83%。
1H NMR(400MHz,CDCl3)δ7.70-7.66(m,2H),7.52(d,J=7.5Hz,1H),7.37(t,J=7.4Hz,1H),7.29(t,J=7.5Hz,1H),7.24(dd,J=2.1Hz,J=8.8Hz,1H),7.08(dt,J=2.4Hz,J=8.8Hz,1H),4.12-3.91(m,5H),3.16(t,J=7.2Hz,1H),2.71-2.59(m,2H),1.19-1.14(m,6H).13C NMR(125MHz,CDCl3)δ169.15,163.41(d,J=243.8Hz),147.74(d,J=8.75Hz),145.30(d,J=1.3Hz),140.41,137.27(d,J=2.5Hz),127.56,126.62,124.82,120.87(d,J=10.0Hz,),119.60,114.65(d,J=22.5Hz),112.32(d,J=22.5Hz),61.42,61.40,48.74,45.42(d,J=2.5Hz),31.53,13.88。
实施例10:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.09mmol,0.3摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为59%。
1H NMR(400MHz,CDCl3)δ7.84-7.78(m,3H),7.65(d,J=8.0Hz,1H),7.58(d,J=7.1Hz,1H),7.44-7.37(m,2H),4.11-3.92(m,5H),3.12(t,J=7.2Hz,1H),2.78-2.63(m,2H),1.16(t,J=7.2Hz,3H),1.15(t,J=7.2Hz,3H).13C NMR(125MHz,CDCl3)δ169.10,169.08,146.10,145.89,144.73,139.86,128.91(q,J=32.1Hz),128.22,127.78,124.86(q,J=3.8Hz),124.50(q,J=270.4Hz),121.78(q,J=3.8Hz),120.71,120.02,61.50,61.45,48.76,45.49,31.29,13.90,13.83。
实施例11:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为92%。
1H NMR(400MHz,CDCl3)δ7.89(d,J=7.7Hz,1H),7.55(d,J=7.5Hz,1H),7.40-7.37(m,2H),7.30(dt,J=0.9Hz,J=7.4Hz,1H),7.21(t,J=7.4Hz,1H),7.15(d,J=7.5Hz,1H),4.08-3.98(m,3H),3.96-3.88(m,2H),3.15(t,J=7.2Hz,1H),2.71(s,3H),2.69-2.62(m,2H),1.14(t,J=7.1Hz,6H).13C NMR(125MHz,CDCl3)δ169.40,169.38,145.90,142.31,139.32,133.06,129.70,127.30,126.63,126.23,124.74,123.12,122.27,61.31,61.30,48.70,45.16,31.93,21.00,13.88。
实施例11:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为93%。
1H NMR(400MHz,CDCl3)δ8.12(d,J=7.6Hz,1H),7.50(d,J=7.4Hz,1H),7.36(t,J=7.5Hz,1H),7.29-7.25(m,2H),7.15(d,J=7.5Hz,1H),6.89(d,J=8.1Hz,1H),4.10-3.83(m,8H),3.20(t,J=7.2Hz,1H),2.71-2.59(m,2H),1.17-1.12(m,6H).13C NMR(125MHz,CDCl3)δ169.38,169.37,155.89,147.51,144.78,140.56,129.28,127.93,127.30,125.95,124.14,123.83,117.05,109.36,61.31,55.28,48.73,45.60,31.76,13.86。
实施例13:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.09mmol,0.3摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为77%。
1H NMR(400MHz,CDCl3)δ8.43(d,J=7.7Hz,1H),7.54(d,J=7.5Hz,1H),7.44-7.33(m,4H),7.23(t,J=7.7Hz,1H),4.08-3.99(m,3H),3.95-3.87(m,2H),3.09(t,J=7.2Hz,1H),2.75-2.63(m,2H),1.14(t,J=7.1Hz,6H).13C NMR(125MHz,CDCl3)δ169.26,169.22,147.99,145.57,140.07,138.01,129.00,128.91,127.53,127.49,127.44,124.52,123.90,123.08,61.42,48.48,45.51,31.59,13.86,13.84。
实施例14:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为90%。
1H NMR(400MHz,CDCl3)δ7.68(d,J=7.4Hz,1H),7.52(d,J=7.4Hz,1H),7.37-7.28(m,2H),6.89(d,J=1.9Hz,1H),6.40(d,J=1.9Hz,1H),4.12(t,J=5.2Hz,1H),4.03-3.81(m,10H),3.04(t,J=7.0Hz,1H),2.91-2.85(m,1H),2.71-2.64(m,1H),1.13(t,J=7.2Hz,3H),1.11(t,J=7.2Hz,3H).13C NMR(125MHz,CDCl3)δ169.66,169.48,161.40,157.32,146.53,143.49,141.33,127.07,126.92,124.82,124.77,119.77,97.61,96.28,61.04,61.01,55.54,55.15,48.61,43.89,29.91,13.83,13.80。
实施例15:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为71%。
1H NMR(400MHz,CDCl3)δ7.72(d,J=7.5Hz,1H),7.56(s,1H),7.52(d,J=7.4Hz,1H),7.41(d,J=7.7Hz,1H),7.36(t,J=7.4Hz,1H),7.29(t,J=7.4Hz,1H),7.12(d,J=7.6Hz,1H),4.08-3.90(m,5H),3.20(t,J=7.2Hz,1H),2.65-2.61(m,2H),2.44(s,3H),1.16(t,J=7.0Hz,3H),1.14(t,J=7.0Hz,3H).13C NMR(125MHz,CDCl3)δ169.38,145.93,142.65,141.41,141.30,137.06,127.86,127.30,126.78,124.84,124.54,120.50,119.75,61.31,61.29,48.87,44.97,31.83,21.45,13.86。
实施例16:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为86%。
1H NMR(400MHz,CDCl3)δ7.70(d,J=7.4Hz,1H),7.53(d,J=7.2Hz,1H),7.46(dd,J=5.0Hz,J=8.3Hz,1H),7.42-7.32(m,3H),6.99(dt,J=2.4Hz,J=8.8Hz,1H),4.10-3.91(m,5H),3.12(t,J=7.2Hz,1H),2.67-2.64(m,2H),1.16(t,J=7.0Hz,3H),1.15(t,J=7.0Hz,3H).13C NMR(125MHz,CDCl3)δ169.28(d,J=6.3Hz),163.90(d,J=243.8Hz),146.34(d,J=8.8Hz),140.79(d,J=1.3Hz),140.43(d,J=2.5Hz),127.58,127.56,125.95(d,J=8.8Hz),124.94,120.18,113.83(d,J=22.5Hz),107.01(d,J=23.8Hz),61.41,61.40,48.70,44.84,31.57,13.88。
实施例17:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为80%。
1H NMR(400MHz,CDCl3)δ7.74(d,J=7.4Hz,1H),7.54(t,J=7.5Hz,2H),7.40-7.32(m,3H),6.97(t,J=8.8Hz,1H),4.29(t,J=5.3Hz,1H),4.04-3.85(m,4H),3.07(t,J=7.1Hz,1H),2.86-2.74(m,2H),1.16-1.11(m,6H).13C NMR(125MHz,CDCl3)δ169.30,169.05,161.04(d,J=246.3Hz),145.22,144.61(d,J=6.3Hz),140.56(d,J=2.5Hz),130.70(d,J=16.3Hz),129.66(d,J=7.5Hz),127.63,127.60,124.98,120.32,115.81(d,J=3.8Hz),113.94(d,J=20.0Hz),61.29,61.25,48.68,43.90(d,J=1.2Hz),30.18,13.83。
实施例18:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.6mmol,2摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为62%。
1H NMR(400MHz,CDCl3)δ7.65(s,2H),7.58-7.56(m,2H),7.50(dd,J=1.6Hz,J=8.1Hz,2H),4.11-4.00(m,5H),3.11(t,J=7.2Hz,1H),2.64(dd,J=6.0Hz,J=7.2Hz,1H),1.19(t,J=7.1Hz,6H).13C NMR(125MHz,CDCl3)δ168.88,147.15,139.23,130.83,128.11,121.29,121.22,61.57,48.66,45.29,31.10,13.89。
实施例19:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为88%。
1H NMR(400MHz,CDCl3)δ8.41(d,J=1.8Hz,1H),8.31(dd,J=2.0Hz,J=8.4Hz,1H),7.87-7.84(m,2H),7.63-7.60(m,1H),7.47-7.44(m,2H),4.14(t,J=6.4Hz,1H),4.12-3.93(m,4H),3.18(t,J=7.3Hz,1H),2.78-2.64(m,2H),1.20-1.15(m,6H).13C NMR(125MHz,CDCl3)δ168.90,168.84,147.61,147.14,146.99,146.56,138.98,129.13,128.10,125.25,123.76,121.41,120.27,120.03,61.61,61.58,48.89,45.53,31.23,13.91,13.88。
实施例20:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为34%。
1H NMR(400MHz,CDCl3)δ7.46(t,J=7.2Hz,2H),7.33-7.30(m,2H),7.21(t,J=7.5Hz,1H),7.13(d,J=4.8Hz,1H),4.19-3.97(m,4H),3.83(t,J=6.4Hz,1H),3.30(dd,J=6.0Hz,J=8.8Hz,1H),2.74(ddd,J=5.3Hz,J=9.0Hz,J=14.1Hz,1H),2.38-2.31(m,1H),1.22(t,J=7.2Hz,3H),1.18(t,J=7.2Hz,3H).13C NMR(125MHz,CDCl3)δ169.26,169.17,149.69,148.62,143.23,138.22,127.42,127.25,125.10,124.56,122.78,118.87,61.43,61.42,49.29,43.19,31.15,13.98,13.90。
实施例21:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为58%。
1H NMR(400MHz,CDCl3)δ7.49(dd,J=1.2Hz,J=7.5Hz,2H),7.38(d,J=5.0Hz,1H),7.31(t,J=7.4Hz,1H),7.27(d,J=5.0Hz,1H),7.20(t,J=7.2Hz,1H),4.26-4.16(m,2H),4.12-4.01(m,2H),3.96(dd,J=5.1Hz,J=8.7Hz,1H),3.51(dd,J=5.9Hz,J=9.1Hz,1H),2.74(ddd,J=5.1Hz,J=9.1Hz,J=14.1Hz,1H),2.26(ddd,J=5.9Hz,J=8.8Hz,J=14.3Hz,1H),1.26(t,J=7.1Hz,3H),1.19(t,J=7.1Hz,3H).13C NMR(125MHz,CDCl3)δ169.16,169.03,149.44,146.82,146.63,138.59,129.15,127.29,124.74,124.39,119.22,118.57,61.55,61.48,49.33,44.09,32.13,14.03,13.92。
实施例22:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为88%。
1H NMR(400MHz,CDCl3)δ8.71(d,J=8.2Hz,2H),7.99(d,J=1.2Hz,1H),7.97(d,J=1.6Hz,1H),7.89(d,J=8.2Hz,2H),7.73(d,J=8.2Hz,2H),7.59-7.51(m,4H),4.25(t,J=5.1Hz,1H),3.86(qd,J=7.1Hz,J=10.8Hz,2H),3.63(qd,J=7.1Hz,J=10.8Hz,2H),2.96-2.93(m,2H),2.85(dd,J=6.2Hz,J=7.3Hz,1H),0.90(t,J=7.1Hz,6H).13C NMR(125MHz,CDCl3)δ169.28,144.76,138.32,134.25,128.69,128.66,127.83,126.78,125.11,124.85,122.25,61.20,47.93,46.72,30.36,13.57。
实施例23:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为82%。
1H NMR(400MHz,CDCl3)δ7.95(d,J=8.4Hz,1H),7.89(d,J=7.6Hz,1H),7.81(d,J=8.4Hz,2H),7.73(d,J=3.7Hz,1H),7.55(d,J=7.6Hz,1H),7.47(d,J=8.5Hz,1H),7.41(t,J=7.3Hz,1H),7.31(t,J=7.4Hz,1H),7.24(d,J=8.2Hz,2H),7.14(d,J=3.7Hz,1H),4.07-3.98(m,2H),3.96-3.86(m,2H),3.70(qd,J=7.2Hz,J=10.8Hz,1H),3.06(t,J=7.1Hz,1H),2.75-2.64(m,2H),2.33(s,3H),1.12(t,J=7.1Hz,3H),0.98(t,J=7.1Hz,3H).13C NMR(125MHz,CDCl3)δ169.34,169.28,146.24,144.96,141.32,140.69,135.29,134.97,133.66,129.86,127.51,127.19,126.86,126.57,124.73,121.49,120.90,111.95,106.87,61.33,61.21,48.58,45.38,31.57,21.46,13.84,13.68。
实施例24:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为78%。
1H NMR(400MHz,CDCl3)δ8.07(d,J=7.6Hz,1H),7.98(d,J=5.6Hz,1H),7.86(d,J=8.2Hz,1H),7.65(d,J=5.5Hz,1H),7.60(d,J=7.5Hz,1H),7.55(d,J=8.2Hz,1H),7.46(t,J=7.5Hz,1H),7.35(t,J=7.5Hz,1H),4.14(t,J=5.6Hz,1H),4.06-3.77(m,4H),3.06(t,J=7.0Hz,1H),2.84-2.71(m,2H),1.12(t,J=7.1Hz,3H),1.02(t,J=7.1Hz,3H).13CNMR(125MHz,CDCl3)δ169.42,169.40,146.02,142.13,141.67,140.17,135.48,133.74,127.70,127.57,126.45,124.85,121.83,121.19,121.01,120.91,61.34,48.48,45.50,31.54,13.87,13.69。
实施例25:
在Schlenk管加入搅拌磁子和上式(Ⅰ)化合物(0.3mmol),氮气保护,加入六氟异丙醇(30mL),再在搅拌下加入三氟甲磺酸(0.03mmol,0.1摩尔当量),然后封口、70℃加热搅拌反应2小时。减压蒸馏除去溶剂和三氟甲磺酸,残留物通过柱层析纯化,得到所述式(Ⅱ)化合物,产率为60%。
1H NMR(400MHz,CDCl3)δ8.79(s,1H),7.85(dd,J=3.1Hz,J=5.8Hz,1H),7.62(d,J=7.4Hz,1H),7.44-7.39(m,2H),7.34(t,J=7.5Hz,1H),7.23-7.19(m,2H),7.12(t,J=7.4Hz,1H),4.18-4.06(m,3H),3.99(qd,J=7.1Hz,J=10.7Hz,1H),3.84(dd,J=5.3Hz,J=8.3Hz,1H),3.40(dd,J=5.4Hz,J=9.9Hz,1H),2.87(ddd,J=5.3Hz,J=9.9Hz,J=15.0Hz,1H),2.32(ddd,J=5.4Hz,J=8.4Hz,J=14.0Hz,1H),1.21(t,J=7.1Hz,3H),1.10(t,J=7.1Hz,3H).13C NMR(125MHz,CDCl3)δ16.96,168.99,147.85,145.91,140.73,139.43,127.57,123.86,122.88,121.92,121.79,121.74,120.42,119.38,118.56,112.02,61.85,61.65,49.38,40.52,30.74,13.94,13.79。
以上所揭露的仅为本发明较佳实施例而已,当然不能以此来限定本发明之权利范围,因此依本发明权利要求所作的等同变化,仍属本发明所涵盖的范围。

Claims (3)

1.一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法,其特征在于:1在氮气气氛下,有机溶剂中,在酸催化剂催化的条件下,下式(Ⅰ)所示化合物发生分子内开环芳基化反应,制得(Ⅱ)所示2-((9-氢芴-9-基)甲基)丙二酸酯化合物,其反应式为:
上述式中,R是Et、Me或i-Pr;
Ar1是取代芳基,其取代基有甲基、硝基、卤素;
Ar2为取代芳基或杂芳基,芳基取代基有甲基、甲氧基、羟基、甲硫基、卤素、三氟甲基,杂芳基有噻吩、苯并噻吩、吲哚;
所述酸催化剂为三氟甲磺酸;
所述有机溶剂为六氟异丙醇;
反应温度为70℃,反应时间2小时。
2.根据权利要求1所述的合成方法,其特征在于,以摩尔比计算,式(Ⅰ)所示化合物在有机溶剂中的摩尔浓度为0.01mol/L。
3.根据权利要求1所述的合成方法,其特征在于,以摩尔比计算,式(Ⅰ)所示化合物与三氟甲磺酸的摩尔比为1:0.01~1:1。
CN201910555223.7A 2019-06-25 2019-06-25 一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法 Expired - Fee Related CN110343042B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910555223.7A CN110343042B (zh) 2019-06-25 2019-06-25 一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910555223.7A CN110343042B (zh) 2019-06-25 2019-06-25 一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法

Publications (2)

Publication Number Publication Date
CN110343042A true CN110343042A (zh) 2019-10-18
CN110343042B CN110343042B (zh) 2021-10-08

Family

ID=68183076

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910555223.7A Expired - Fee Related CN110343042B (zh) 2019-06-25 2019-06-25 一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法

Country Status (1)

Country Link
CN (1) CN110343042B (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120002141A1 (en) * 2008-06-27 2012-01-05 Transitions Optical, Inc. Mesogenic stabilizers
CN105622410A (zh) * 2014-11-03 2016-06-01 中国石油化工股份有限公司 一种芴基团和羧酸酯结合的化合物及其应用
CN108892604A (zh) * 2018-08-15 2018-11-27 江西师范大学 一种制备卤代苯并[b]芴酮系列化合物的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120002141A1 (en) * 2008-06-27 2012-01-05 Transitions Optical, Inc. Mesogenic stabilizers
CN105622410A (zh) * 2014-11-03 2016-06-01 中国石油化工股份有限公司 一种芴基团和羧酸酯结合的化合物及其应用
CN108892604A (zh) * 2018-08-15 2018-11-27 江西师范大学 一种制备卤代苯并[b]芴酮系列化合物的方法

Also Published As

Publication number Publication date
CN110343042B (zh) 2021-10-08

Similar Documents

Publication Publication Date Title
CN102827042B (zh) 氟苯尼考的手性合成方法
CN104803956A (zh) 非罗考昔的一种合成方法
CN108689903A (zh) 一种布瓦西坦的新的制备方法
CN109400580A (zh) 3,4-二氨基吡啶氮氧类手性催化剂及其在Steglich重排中的应用
CN104744378B (zh) 一种(e)‑3‑[4‑(4‑氟苯基)‑6‑异丙基‑2‑(n‑甲基‑n‑甲磺酰胺基)嘧啶‑5‑基]丙烯醛的合成方法
CN110343042A (zh) 一种2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法
CN112321467A (zh) 一种(2s,3r)-对甲砜基苯丝氨酸乙酯的制备方法
CN109180601B (zh) 一种有机胺催化co2合成2,4-噁唑烷二酮类化合物的方法
CN107513056B (zh) 一种含四氢呋喃基团的喹啉类化合物的合成方法
CN106518822A (zh) 独脚金内酯(±)‑gr24及4位取代的(±)‑gr24的合成方法
CN110256247A (zh) 2-((9-氢芴-9-基)甲基)丙二酸酯的合成方法
CN107501171B (zh) 一种2-氯-3-吡啶甲醛的合成方法
CN107286064B (zh) 一种药物合成中间体及其制备方法
CN113045463A (zh) 一种(e)-3-芳硫基-2-碘丙烯酸乙酯化合物的合成方法
CN111635359B (zh) 一种通过氟烷基亚磺酰基制备芳香族烯基化合物的方法
CN116082155B (zh) 一种利用对称环氧化合物制备唑啉草酯中间体的方法
CN110015983A (zh) 1,2-二羰基类化合物及其合成方法
CN109942553A (zh) 一种手性3,4,6-三取代四氢2h-吡喃-2-酮化合物的合成及其转化方法
CN113493386B (zh) 一种2-氟环丙胺的高选择性不对称合成新工艺
CN108863739A (zh) 一种由芳基乙酮与2-芳基丙烯及二甲基亚砜构建环己烯衍生物的方法
CN115286591B (zh) 一种药物Tafamidis的合成方法
CN112939830B (zh) 一种烯基硫醚对邻亚甲基苯醌的亲核反应方法
CN102766095A (zh) 一种含缺电子基团的多取代吡唑类衍生物的制备方法
CN113754597B (zh) 一种含直链烯烃的二苯甲基哌嗪类化合物及其制备方法
CN113214110B (zh) α-取代-β-羟基腈类化合物及其衍生物的制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20211008

CF01 Termination of patent right due to non-payment of annual fee