CN111205210A - 一种2-甲基吡咯啉的合成方法 - Google Patents
一种2-甲基吡咯啉的合成方法 Download PDFInfo
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- CN111205210A CN111205210A CN202010118193.6A CN202010118193A CN111205210A CN 111205210 A CN111205210 A CN 111205210A CN 202010118193 A CN202010118193 A CN 202010118193A CN 111205210 A CN111205210 A CN 111205210A
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- MUUWQYQRBFVTIB-UHFFFAOYSA-N 5-methyl-2,3-dihydro-1h-pyrrole Chemical compound CC1=CCCN1 MUUWQYQRBFVTIB-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 238000010189 synthetic method Methods 0.000 title abstract description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims abstract description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000012043 crude product Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000010992 reflux Methods 0.000 claims abstract description 8
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- XGISHOFUAFNYQF-UHFFFAOYSA-N pentanoyl chloride Chemical compound CCCCC(Cl)=O XGISHOFUAFNYQF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000047 product Substances 0.000 claims abstract description 4
- 238000004537 pulping Methods 0.000 claims abstract description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 3
- 239000011591 potassium Substances 0.000 claims abstract description 3
- 238000001308 synthesis method Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 8
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 7
- RGHPCLZJAFCTIK-UHFFFAOYSA-N 2-methylpyrrolidine Chemical compound CC1CCCN1 RGHPCLZJAFCTIK-UHFFFAOYSA-N 0.000 claims description 3
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000013341 scale-up Methods 0.000 abstract description 3
- 239000013067 intermediate product Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000001540 azides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 potassium phthaloyl chloride salt Chemical compound 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/20—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
本发明公开了一种2‑甲基吡咯啉的合成方法,包括以下步骤,将戊酰氯和邻苯二甲酰钾盐加入高沸点溶剂中加热回流5‑15小时,待反应液冷却后,过滤反应液,对反应液浓缩,加入甲醇打浆,得到粗品,将S1中得到的粗品加入盐酸中加热回流,待反应完全后,浓缩至干,残留液加水溶解,用碳酸钠调至PH为11左右,用二氯甲烷萃取3‑5次,浓缩干燥后,蒸馏出产品。本发明中提出的2‑甲基吡咯啉的合成方法制作方法使用的起始原料容易获得,且制作方便,容易放大生产,且中间产物稳定,收集效率高。
Description
技术领域
本发明涉及化工技术领域,尤其涉及一种2-甲基吡咯啉的合成方法。
背景技术
方法1:文献Organic letters,2002,vol.4,9,1475-1478;chemical science,2015,vol.6,#5,2893-2902和Dalton transactions,2013,vol.42,#39,14298-14308,报道了如下方法:
方法2:文献tetrahedron letters,1986,vol.27,#9,1031-1034和journal ofthe chemical society,chemical communications,1982,#21,1224-1225,报道了如下方法:
方法1中,起始原料很难找到,而且需要昂贵的催化剂,不容易放大合成生产。
方法2中,需要使用非常容易爆炸的试剂叠氮化钠,中间体叠氮化物也非常容易爆炸。
发明内容
基于背景技术存在的技术问题,本发明提出了一种2-甲基吡咯啉的合成方法。
本发明提出的一种2-甲基吡咯啉的合成方法,包括以下步骤:
S1:将戊酰氯和邻苯二甲酰钾盐加入高沸点溶剂中加热回流5-15小时,待反应液冷却后,过滤反应液,对反应液浓缩,加入甲醇打浆,得到粗品;
S2:将S1中得到的粗品加入盐酸中加热回流,待反应完全后,浓缩至干,残留液加水溶解,用碳酸钠调至PH为11左右,用二氯甲烷萃取3-5次,浓缩干燥后,蒸馏出产品。
优选地,所述高沸点溶剂包括但不限于N,N-二甲基甲酰胺。
本发明的有益效果:
本发明中提出的2-甲基吡咯啉的合成方法制作方法使用的起始原料容易获得,且制作方便,容易放大生产,且中间产物稳定,收集效率高。
附图说明
图1为本发明提出的一种2-甲基吡咯啉的合成方法的流程示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。
参照图1,一种2-甲基吡咯啉的合成方法,包括以下步骤:
S1:将120g戊酰氯和185g邻苯二甲酰钾盐加入1000ml N,N-二甲基甲酰胺中,加入催化量的碘化钾,加热回流10小时,待反应液冷却后,过滤反应液,对反应液浓缩,加入甲醇打浆,得到粗品;
S2:将S1中得到的粗品加入500ml盐酸中加热回流6小时,待反应完全后,浓缩至干,残留液加400ml的水溶解,用碳酸钠调至PH为11左右,用二氯甲烷萃取3-5次,浓缩干燥后,收集90-110度的馏分,得38g产品,二步收率为45.8%。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (2)
1.一种2-甲基吡咯啉的合成方法,其特征在于,包括以下步骤:
S1:将戊酰氯和邻苯二甲酰钾盐加入高沸点溶剂中加热回流5-15小时,待反应液冷却后,过滤反应液,对反应液浓缩,加入甲醇打浆,得到粗品;
S2:将S1中得到的粗品加入盐酸中加热回流,待反应完全后,浓缩至干,残留液加水溶解,用碳酸钠调至PH为11左右,用二氯甲烷萃取3-5次,浓缩干燥后,蒸馏出产品。
2.根据权利要求1所述的一种2-甲基吡咯啉的合成方法,其特征在于,所述高沸点溶剂包括但不限于N,N-二甲基甲酰胺。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116087533A (zh) * | 2023-04-12 | 2023-05-09 | 广州科方生物技术股份有限公司 | 一种涉及多项目共用的液态复合质控物及其制配方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095950A (en) * | 1965-08-21 | 1967-12-20 | Basf Ag | New azo dyes and their production |
| WO2016067012A1 (en) * | 2014-10-27 | 2016-05-06 | Imperial Innovations Limited | Compounds as sirt2 inhibitors |
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2020
- 2020-02-26 CN CN202010118193.6A patent/CN111205210A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095950A (en) * | 1965-08-21 | 1967-12-20 | Basf Ag | New azo dyes and their production |
| WO2016067012A1 (en) * | 2014-10-27 | 2016-05-06 | Imperial Innovations Limited | Compounds as sirt2 inhibitors |
Non-Patent Citations (3)
| Title |
|---|
| JOAN BOSCH ET AL.: "Reinvestigation of the Stevens Rearrangement of 1-Benzyl-1,3,4-trimethyl-l,2,5,6-tetrahydropyridinium Salts. II. Synthesis of 2-Aryl-3-isopropenyl-1,3-dimethylpyrrolidines", 《J. HELRROCYCLIC CHEM.》 * |
| ROLAND GEYER ET AL.: "Synthesis and Functional Characterization of Imbutamine Analogs as Histamine H3 and H4 Receptor Ligands", 《ARCH. PHARM. CHEM. LIFE SCI.》 * |
| TARUN K. PANDA ET AL.: "Bis(phosphinimino)methanides as ligands in divalent lanthanide and alkaline earth chemistry – synthesis, structure, and catalysis", 《JOURNAL OF ORGANOMETALLIC CHEMISTRY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116087533A (zh) * | 2023-04-12 | 2023-05-09 | 广州科方生物技术股份有限公司 | 一种涉及多项目共用的液态复合质控物及其制配方法 |
| CN116087533B (zh) * | 2023-04-12 | 2023-06-23 | 广州科方生物技术股份有限公司 | 一种涉及多项目共用的液态复合质控物及其制配方法 |
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