CN106243009B - 一种3-正丁胺基-4-溴-n-苯基马来酰亚胺的制备方法 - Google Patents

一种3-正丁胺基-4-溴-n-苯基马来酰亚胺的制备方法 Download PDF

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CN106243009B
CN106243009B CN201610626049.7A CN201610626049A CN106243009B CN 106243009 B CN106243009 B CN 106243009B CN 201610626049 A CN201610626049 A CN 201610626049A CN 106243009 B CN106243009 B CN 106243009B
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赵圣印
安玉龙
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    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic 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
    • C07D207/44Heterocyclic 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 three double bonds between ring members or between ring members and non-ring members
    • C07D207/444Heterocyclic 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 three double bonds between ring members or between ring members and non-ring members having two doubly-bound oxygen atoms directly attached in positions 2 and 5
    • C07D207/456Heterocyclic 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 three double bonds between ring members or between ring members and non-ring members having two doubly-bound oxygen atoms directly attached in positions 2 and 5 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms

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Abstract

本发明涉及一种3‑正丁胺基‑4‑溴‑N‑苯基马来酰亚胺的制备方法,包括:将N‑苯基马来酰亚胺、正丁胺和溴化剂加入到溶剂中,室温~100℃下反应1~3小时,反应结束后,加水搅拌,萃取,干燥,浓缩,重结晶,得到3‑正丁胺基‑4‑溴‑N‑苯基马来酰亚胺。本发明制备的3‑正丁胺基‑4‑溴‑N‑苯基马来酰亚胺收率高,反应操作简单,反应路线短,三废少,易于工业化生产。

Description

一种3-正丁胺基-4-溴-N-苯基马来酰亚胺的制备方法
技术领域
本发明属于马来酰亚胺类化合物的制备领域,特别涉及一种3-正丁胺基-4-溴-N-苯基马来酰亚胺的制备方法。
背景技术
3-胺基-4-溴马来酰亚胺及其衍生物是重要的药物合成中间体,利用该中间体可以合成3-胺基-4-芳基马来酰亚胺类化合物,在抗菌、抗病毒以及抑制蛋白激酶等方面有着重要的应用(Budke,B.;Kalin,J.H.;Pawlowski,M.;Zelivianskaia,A.S.;Wu,M.;Kozikowski,A.P.;Connell,P.P.J.Med.Chem.,2013,56:254-263.和Awuah,E.;Capretta,A.J.Org.Chem.,2011,76:3122-3130.)。另外,近年来也有关研究其在荧光材料、荧光探针等方面的应用(Mabire,A.B.;Robin,M.P.;Quan,W.D.;Willcock,H.;Stavros,V.G.;O’Reilly,R.K.Chem.Commun.,2015,51:9733-9736.)。文献报道3-胺基-4-溴马来酰亚胺类化合物的合成方法主要包括两种:方法一,马来酰亚胺类化合物经液溴溴化,制得3,4-二溴基马来酰亚胺类化合物,然后经脱溴化氢氧化、胺化,再与液溴反应,最终合成3-胺基-4-溴-马来酰亚胺类化合物(Patil,N.S.;Deshmukh,G.B.;Makale,K.A.;Gosavi,K.S.;Patil,S.V.Indian.J.Chem.,2015,54B:272-278);方法二,马来酸酐为原料,在三氯化铝和溴素的参与下,120℃回流反应16h,然后在苯胺的参与下在醋酸中125℃反应3h,最后再与正丁胺在室温中反应1.5h,合成3-胺基-4-溴-马来酰亚胺类化合物(Mabire,A.B.;Robin,M.P.;Quan,W.D.;Willcock,H.;Stavros,V.G.;O’Reilly,R.K.Chem.Commun.,2015,51:9733-9736.)。上述两种合成方法中,方法一需要多次的溴化、氧化脱溴、胺化等过程,步骤多,反应时间长;方法二反应时间长,反应温度高,醋酸的参与使原料容易聚合,副产物较多等。
综上所述,上述方法存在反应路线长、收率低和反应条件要求苛刻等缺点,在大规模生产中成本相对较高。
合成方法一的反应式:
合成方法二的反应式:
发明内容
本发明所要解决的技术问题是提供一种3-正丁胺基-4-溴-N-苯基马来酰亚胺的制备方法,该方法以N-苯基马来酰亚胺和正丁胺为原料,以溴化亚铜为溴化剂,反应得到3-正丁胺基-4-溴-N-苯基马来酰亚胺,收率达90%。该方法制备工艺简单、反应时间短、成本低、环境友好、纯度和收率高、适合工业化生产。具体的制备反应式如下:
本发明的一种3-正丁胺基-4-溴-N-苯基马来酰亚胺的制备方法,包括:
将N-苯基马来酰亚胺、正丁胺和溴化剂加入到溶剂中,室温~100℃下反应1~3小时,反应结束后,加水搅拌,乙酸乙酯萃取、无水硫酸钠干燥、浓缩蒸去有机溶剂得黄棕色固体,而后经重结晶得到黄色固体3-正丁胺基-4-溴-N-苯基马来酰亚胺。
所述N-苯基马来酰亚胺、正丁胺和溴化剂摩尔比为1.0:1.0~1.2:1.0~2.0。
所述溴化剂为溴化铜。
所述N-苯基马来酰亚胺与溶剂的比例为1克:1毫升~100毫升。
所述溶剂为1,4-二氧六环、DMF、DMSO或THF。
所述重结晶溶剂为95%(v/v)乙醇。
本发明的3-正丁胺基-4-溴-N-苯基马来酰亚胺的结构式:
熔点:78~80℃;
性状:黄色固体;
3-正丁胺基-4-溴-N-苯基马来酰亚胺的核磁数据如下:
1H NMR(400MHz,CDCl3)δ0.98(t,J=7.2Hz,3H),1.49–1.39(m,2H),1.68(p,J=7.0Hz,2H),3.69(q,J=6.7Hz,2H),5.62(s,1H),7.40–7.28(m,3H),7.44(t,J=7.3Hz,2H);
13C NMR(101MHz,CDCl3)δ13.74,19.69,32.76,42.92,75.51,125.73(2C),127.67,129.03(2C),131.64,143.00,164.98,166.63。
有益效果
本发明在制备3-正丁胺基-4-溴-N-苯基马来酰亚胺的过程中,以溴化铜作为催化剂和溴化剂,缩短了反应时间和反应步骤,反应收率达90%以上,产率高,降低了三废处理,该方法同样收率较高;该制备方法起始原料易得,成本低,反应操作简单,反应路线短,易于工业化生产。
附图说明
图1为实施例1中化合物3-正丁胺基-4-溴-N-苯基马来酰亚胺的核磁共振氢谱;
图2为实施例1中化合物3-正丁胺基-4-溴-N-苯基马来酰亚胺的核磁共振碳谱。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解,在阅读了本发明讲授的内容之后,本领域技术人员可以对本发明作各种改动或修改,这些等价形式同样落于本申请所附权利要求书所限定的范围。
实施例1
取N-苯基马来酰亚胺17.3g(0.1mol)、正丁胺8.0g(0.11mol)和溴化铜22.3g(0.1mol)加入至500mL圆底烧瓶中,加入1,4-二氧六环200mL,加热100℃搅拌2h,反应毕,加水100mL,搅拌10分钟,乙酸乙酯萃取(200mL×3)、无水硫酸钠干燥有机相、浓缩蒸去有机溶剂得黄棕色固体,而后经95%(v/v)乙醇重结晶得到黄色固体27.1g,收率84%,mp:78~80℃。3-正丁胺基-4-溴-N-苯基马来酰亚胺的核磁共振氢谱和碳谱如图1和图2所示。
实施例2
取N-苯基马来酰亚胺1.73g(0.01mol)、正丁胺0.8g(0.011mol)和溴化铜3.35g(0.015mol)加入至250mL圆底烧瓶中,加入1,4-二氧六环80mL,加热100℃搅拌2h,反应毕,加水100mL,搅拌10分钟,乙酸乙酯萃取(100mL×3)、无水硫酸钠干燥有机相、浓缩蒸去有机溶剂得黄棕色固体,而后经95%(v/v)乙醇重结晶得到黄色固体2.97g,收率92%,mp:78~80℃。
实施例3
取N-苯基马来酰亚胺1.73g(0.01mol)、正丁胺0.8g(0.011mol)和溴化铜3.35g(0.015mol)加入至250mL圆底烧瓶中,加入1,4-二氧六环80mL,加热60℃搅拌2h,反应毕,加水100mL,搅拌10分钟,乙酸乙酯萃取(100mL×3)、无水硫酸钠干燥有机相、浓缩蒸去有机溶剂得黄棕色固体,而后经95%(v/v)乙醇重结晶得到黄色固体2.74g,收率85%,mp:78~80℃。
实施例4
取N-苯基马来酰亚胺3.46g(0.02mol)、正丁胺1.6g(0.022mol)和溴化铜6.7g(0.03mol)加入至250mL圆底烧瓶中,加入DMF 80mL,加热100℃搅拌2h,反应毕,加水100mL,搅拌10分钟,乙酸乙酯萃取(100mL×3)、无水硫酸钠干燥有机相、浓缩蒸去有机溶剂得黄棕色固体,而后经95%(v/v)乙醇重结晶得到黄色固体5.36g,收率83%,mp:77~80℃。
实施例5
取N-苯基马来酰亚胺8.65g(0.05mol)、正丁胺4.0g(0.055mol)和溴化铜16.75g(0.075mol)加入至500mL圆底烧瓶中,加入DMSO 200mL,加热100℃搅拌2h,反应毕,加水100mL,搅拌10分钟,乙酸乙酯萃取(200mL×3)、无水硫酸钠干燥有机相、浓缩蒸去有机溶剂得黄棕色固体,而后经95%(v/v)乙醇重结晶得到黄色固体13.25g,收率82%,mp:78~80℃。
实施例6
取N-苯基马来酰亚胺1.73g(0.01mol)、正丁胺0.8g(0.011mol)和溴化铜3.35g(0.015mol)加入至250mL圆底烧瓶中,加入THF 80mL,加热100℃搅拌2h,反应毕,加水100mL,搅拌10分钟,乙酸乙酯萃取(100mL×3)、无水硫酸钠干燥有机相、浓缩蒸去有机溶剂得黄棕色固体,而后经95%(v/v)乙醇重结晶得到黄色固体2.42g,收率75%,mp:76~78℃。

Claims (3)

1.一种3-正丁胺基-4-溴-N-苯基马来酰亚胺的制备方法,包括:
将N-苯基马来酰亚胺、正丁胺和溴化剂加入到溶剂中,室温~100℃下反应1~3小时,反应结束后,加水搅拌,萃取,干燥,浓缩,重结晶,得到3-正丁胺基-4-溴-N-苯基马来酰亚胺,其中溴化剂为溴化铜,溶剂为1,4-二氧六环、DMF、DMSO或THF。
2.根据权利要求1所述的一种3-正丁胺基-4-溴-N-苯基马来酰亚胺的制备方法,所述N-苯基马来酰亚胺、正丁胺和溴化剂摩尔比为1.0:1.0~1.2:1.0~2.0。
3.根据权利要求1所述的一种3-正丁胺基-4-溴-N-苯基马来酰亚胺的制备方法,所述N-苯基马来酰亚胺与溶剂的比例为1克:1毫升~100毫升。
CN201610626049.7A 2016-08-02 2016-08-02 一种3-正丁胺基-4-溴-n-苯基马来酰亚胺的制备方法 Expired - Fee Related CN106243009B (zh)

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