CN110054572A - 一种制备取代1,3-丙二腈的方法 - Google Patents

一种制备取代1,3-丙二腈的方法 Download PDF

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CN110054572A
CN110054572A CN201810049298.3A CN201810049298A CN110054572A CN 110054572 A CN110054572 A CN 110054572A CN 201810049298 A CN201810049298 A CN 201810049298A CN 110054572 A CN110054572 A CN 110054572A
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malononitrile
ketones
aldehydes
nmr
cdcl
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颜世强
张伟
李英霞
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Fudan University
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    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00Preparation of carboxylic acid nitriles
    • C07C253/30Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/54Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D333/00Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/24Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals

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Abstract

本发明属精细化工产品的制备、药物中间体的合成技术领域,涉及一种制备取代1,3‑丙二腈的方法,本发明利用醛或酮与丙二腈缩合制备取代1,3‑丙二腈,其中以水为溶剂,醛或酮与丙二腈在脯氨酸锌的催化下发生Knoevenagel缩合,制得相应的取代1,3‑丙二腈。本发明的方法条件温和、易于操作,以水为反应溶剂,绿色环保,具有广泛的应用前景。

Description

一种制备取代1,3-丙二腈的方法
技术领域
本发明属于精细化工产品的制备、药物中间体的合成技术领域,涉及一种制备取代1,3-丙二腈的方法,具体涉及利用醛或酮与丙二腈缩合制备取代1,3-丙二腈的方法。
背景技术
现有技术公开了羰基化合物与活泼亚甲基化合物间的Knoevenagel缩合是形成碳碳双键的一个重要反应,所述反应生成的亚甲基化合物在工业、农业、药物及生物科学中有着广泛的应用,同时还是有机合成反应中的重要中间体;该类反应通常是在碱或路易斯酸催化下,在液相中、特别是在有机溶剂中通过加热进行,一般所需反应时间较长,而且产率不高。
近年来随着新技术、新试剂以及新体系的引入,本领域技术人员对该类缩合反应进行了广泛研究,获得了若干新的研究进展,尤其是随着人们对人类生存环境的日益重视,公开了若干对环境无污染的绿色合成工艺。业内认为,绿色合成更注重对反应溶剂的选择,其中水被认为是最理想的绿色溶剂,水作为有机反应的介质具有价廉、无污染、操作简单等优点。
基于现有技术的现状,本申请的发明人拟提供一种新的制备取代1,3-丙二腈的方法,尤其涉及利用醛或酮与丙二腈缩合制备取代1,3-丙二腈的方法。本方法可以在水相中使用极少量的催化剂,使醛或酮与丙二腈发生Knoevenagel缩合,制备相应的取代丙二腈。
本发明提供的方法,
不仅可以完成芳香醛与丙二腈的缩合,而且对酯环酮与丙二腈的缩合也十分有效。相比已有报道,该方法易于操作,所得产物仅需简单过滤即得;所用催化剂可重复使用;且具有更好的底物兼容性,更广泛的用途、较大的成本和环保优势。
发明内容
本发明的目的是基于现有技术的基础,提供一种新的制备取代1,3-丙二腈的方法,尤其涉及利用醛或酮与丙二腈缩合制备取代1,3-丙二腈的方法。本方法可以在水相中使用极少量的催化剂,使醛或酮与丙二腈发生Knoevenagel缩合,制备相应的取代丙二腈。
本发明所采用的实验试剂是本领域所公知的或可通过
本发明的目的通过下述技术方案实现:
将醛或酮悬浮于水中,加热条件下首先加入丙二腈搅拌一段时间,然后再加入催化剂脯氨酸锌,得到相应的取代1,3-丙二腈;
本发明中,所用的醛或酮,可以是由脂肪链、脂肪环或芳环构成的醛或酮;
本发明中,所述的丙二腈与醛或酮的摩尔比为1:1-10:1;
本发明中,催化剂脯氨酸锌与醛或酮的摩尔比为0.001:1-1:1;
本发明中,反应温度为0-150摄氏度;反应时间为1分钟-5小时。
本发明提供的方法,不仅可以完成芳香醛与丙二腈的缩合,而且对酯环酮与丙二腈的缩合十分有效。相比已有的报道,本方法易于操作,所得产物仅需简单过滤即得;所用催化剂可重复使用;且具有更好的底物兼容性,更广泛的用途、较大的成本和环保优势。
具体实施方式
以下为本发明的具体实施例,但本发明不仅仅局限于以下实施例。
制备通法:取醛或酮5.0mmol,丙二腈5.0mmol加入到水中(5mL),在搅拌条件下加入催化剂脯氨酸锌0.01mmol,然后加热至80摄氏度并搅拌10min。将反应液冷却至室温,过滤得到产物。
实施例1:
以4-甲氧基苯甲醛为原料,按通法制备,收率98%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ7.91(d,J=8.1Hz,2H),7.65(s,1H),7.01(d,J=8.1Hz,2H),3.92(s,3H);13C NMR(CDCl3,125MHz)δ164.98,158.97,133.59,124.19,115.29,114.55,113.47,78.81,55.94.。
实施例2:
以3-甲氧基-4-羟基苯甲醛为原料,按通法制备,收率99%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ7.72(s,1H),7.63(s,1H),7.31(d,J=8.1Hz,1H),7.01(d,J=8.1Hz,1H),6.39(s,1H),3.98(s,1H);13C NMR(CDCl3,125MHz)δ159.36,152.28,147.20,129.08,124.13,115.37,114.51,113.74,110.63,78.34,56.36.。
实施例3:
以3,4-二甲氧基苯甲醛为原料,按通法制备,收率97%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ7.67(s,1H),7.64(s,1H),7.38(d,J=7.9Hz,1H),6.95(d,J=7.9Hz,1H),3.98(s,3H),3.94(s,3H);13C NMR(CDCl3,125MHz)δ159.17,155.00,149.67,128.20,124.38,114.47,113.64,111.24,111.01,78.54,56.38,56.16.。
实施例4:
以苯甲醛为原料,按通法制备,收率90%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ7.91(d,J=7.5Hz,2H),7.78(s,1H),7.65-7.62(m,1H),7.56-7.53(m,2H);13C NMR(CDCl3,125MHz)δ160.03,134.74,131.09,130.85,129.77,113.81,112.66,83.08.。
实施例5:
以4-氯苯甲醛为原料,按通法制备,收率96%。产物的核磁共振波谱数据如下:1HNMR(CDCl3,500MHz)δ7.85(d,J=7.9Hz,2H),7.73(s,1H),7.52(d,J=7.9Hz,2H);13C NMR(CDCl3,125MHz)δ158.37,141.30,131.97,130.23,129.43,113.56,112.46,83.57.。
实施例6:
以3-硝基苯甲醛为原料,按通法制备,收率94%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ8.66(s,1H),8.47(d,J=8.0Hz,1H),8.33(d,J=8.0Hz,1H),7.89(s,1H),7.81-7.78(m,1H);13C NMR(CDCl3,125MHz)δ157.02,148.87,134.88,132.17,131.13,128.37,125.73,112.76,111.75,87.04.。
实施例7:
以4-氟苯甲醛为原料,按通法制备,收率97%。产物的核磁共振波谱数据如下:1HNMR(CDCl3,500MHz)δ7.98(s,2H),7.77(s,1H),7.28-7.24(m,2H);13CNMR(CDCl3,125MHz)δ167.30,165.23,158.39,133.55(d),127.51(d),117.44,117.26,113.68,112.62,82.65.。
实施例8:
以1-萘甲醛原料,按通法制备,收率89%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ8.66(s,1H),8.28(d,J=7.0Hz,1H),8.11(d,J=8.0Hz,1H),7.97-7.95(m,2H),7.71-7.60(m,3H);13C NMR(CDCl3,125MHz)δ157.80,135.05,133.70,131.23,129.58,128.68(d),127.67,127.43,125.52,122.43,113.84,112.62,85.38.。
实施例9:
以9-蒽甲醛为原料,按通法制备,收率84%。产物的核磁共振波谱数据如下:1HNMR(CDCl3,500MHz)δ8.93(s,1H),8.64(s,1H),8.09(d,J=8.2Hz,2H),7.92(d,J=8.6Hz,2H),7.69-7.66(m,2H),7.60-7.57(m,2H);13C NMR(CDCl3,125MHz)δ160.71,132.63,131.06,129.68,129.25,128.48,126.20,124.02,123.54,113.13,111.51,92.52.。
实施例10:
以呋喃甲醛为原料,按通法制备,收率96%。产物的核磁共振波谱数据如下:1HNMR(CDCl3,500MHz)δ7.80(s,1H),7.51(s,1H),7.36(s,1H),6.72(s,1H);13C NMR(CDCl3,125MHz)δ149.65,148.21,143.17,123.53,114.55,113.90,112.70,77.76.。
实施例11:
以噻吩甲醛为原料,按通法制备,收率96%。产物的核磁共振波谱数据如下:1HNMR(CDCl3,500MHz)δ7.86(s,2H),7.79(s,1H),7.25(s,1H);13C NMR(CDCl3,125MHz)δ151.18,138.24,136.99,135.54,129.16,113.90,113.06,78.54.。
实施例12:
以环己酮为原料,按通法制备,收率96%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ2.65-2.64(m,4H),1.80-1.79(m,4H),1.68(s,2H);13CNMR(CDCl3,125MHz)δ185.04,111.77,82.66,34.84,28.06,25.14.。
实施例13:
以环戊酮为原料,按通法制备,收率94%。产物的核磁共振波谱数据如下:1H NMR(CDCl3,500MHz)δ2.80(s,4H),1.92(s,4H);13C NMR(CDCl3,125MHz)δ192.38,111.85,81.49,36.25,26.09.。

Claims (6)

1.一种制备取代1,3-丙二腈的方法,其特征在于,由醛或酮与丙二腈缩合制备取代1,3-丙二腈,其中,以水为溶剂,醛或酮与丙二腈在脯氨酸锌的催化下发生Knoevenagel缩合,制得相应的取代1,3-丙二腈。
2.如权利要求1的方法,其特征在于,所述的醛或酮是由脂肪链、脂肪环或芳环构成的醛或酮。
3.如权利要求1的方法,其特征在于,该方法中所述的脯氨酸锌与醛或酮的摩尔比为0.001:1-1:1。
4.如权利要求1的方法,其特征在于,该方法的转化条件中,丙二腈与醛或酮的摩尔比为1:1-10:1。
5.如权利要求1的方法,其特征在于,该方法的转化条件中,反应温度为0-150摄氏度。
6.如权利要求1的方法,其特征在于,该方法的转化条件中,反应时间为1分钟-5小时。
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CN117431276A (zh) * 2023-09-27 2024-01-23 江苏维尤纳特精细化工有限公司 一种二腈的精制方法

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Application publication date: 20190726