CN104844565A - 一种基于硫粉合成噻蒽的简便方法 - Google Patents

一种基于硫粉合成噻蒽的简便方法 Download PDF

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CN104844565A
CN104844565A CN201510176702.XA CN201510176702A CN104844565A CN 104844565 A CN104844565 A CN 104844565A CN 201510176702 A CN201510176702 A CN 201510176702A CN 104844565 A CN104844565 A CN 104844565A
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thianthrene
sulphur powder
sulfur powder
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CN104844565B (zh
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万结平
刘云云
张毅
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Jiangxi Normal University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D339/00Heterocyclic compounds containing rings having two sulfur atoms as the only ring hetero atoms
    • C07D339/08Six-membered rings

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

一种基于硫粉合成噻蒽的简便方法,将邻二碘苯0.5mmol,硫粉0.5mmol,碘化亚铜0.05 mmo,1,10-菲啰啉0.1mmol和碳酸钾1.0mmol称入25mL圆底烧瓶,加入磁子和2mL二甲基亚砜,所得有机相以无水Na2SO4干燥,过滤,所得滤液蒸除溶剂后,残余物通过硅胶柱层析分离提纯得到的噻蒽产物。该方法的优点是:1、原料简单,无需使用具有刺激性气味的硫酚或其衍生物;2、操作简便,无需任何无水无氧等特殊操作;3、反应条件温和,90摄氏度加热既可完成反应,适合放大合成。

Description

一种基于硫粉合成噻蒽的简便方法
技术领域
本发明涉及一种环境友好的合成噻蒽的方法。
背景技术
噻蒽作为有机合成中间体,其主要特征是1,4-位含两个硫的双苯并杂环结构。这类化合物在有机化学领域具有重要的作用。同时,研究证实噻蒽及其衍生物具有多样的生物功能和药物活习惯,也是合成多种药物的关键中间体。目前已知的合成噻吩的方法是通过苯硫酚衍生物或者二苯硫醚衍生物为主要原料,通过铜催化的偶联反应关环得到目标产物。由于硫醚的合成也需要用到苯硫酚,因此这些方法直接或间接的地需要苯硫酚为原料,这类物质的的刺激性气味以及所使用中所带来的环境污染成为合成工艺的重大限制。因此,建立物使用硫酚类化合物的方法合成噻蒽类化合物具有重要意义。
发明内容
    本发明的目的在于提供一种以硫粉为原料合成噻蒽的方法,该合成方法所需原料简单易得、环境友好、反应条件温和。
    本发明是这样实现的,将邻二碘苯0.5mmol, 硫粉0.5mmol,碘化亚铜0.05 mmo,1,10-菲啰啉0.1mmol和碳酸钾1.0mmol称入25mL圆底烧瓶,加入磁子和2mL二甲基亚砜,90oC下加热12小时。反应结束后加入蒸馏水10mL,并以乙酸乙酯萃取。所得有机相以无水Na2SO4干燥,过滤。所得滤液蒸除溶剂后,残余物通过硅胶柱层析分离提纯得到的噻蒽产物。
    本发明的技术效果是:直接使用环境友好的硫粉为硫源、廉价的铜盐为催化剂、反应操作简单、条件温和,适合放大生产。
附图说明
图1为本发明合成流程图。
图2为本发明中产物噻蒽的核磁共振氢谱。
图3为本发明中产物噻蒽的核磁共振碳谱。
具体实施方式
本发明是这样实现的,在25 mL的圆底烧瓶中加入邻二碘苯(0.5 mmol)、硫粉(0.5 mmol)、碘化亚铜(0.05 mmol)、1,10-菲啰啉(0.1 mmol)、碳酸钾(1 .0mmol)和二甲基亚砜(2 mL)。所得混合体系再90oC搅拌12小时。冷却至室温后向体系中加入10 mL水,然后用乙酸乙酯(3×10 mL)萃取,无水硫酸钠干燥。蒸除溶剂后,所得残余物以硅胶柱层析得到纯品,产率82%。反应式和数据如下图1所示。所得产物结构和纯度经过核磁共振氢谱和碳谱测试并和文献数据比较得以确定。
产物噻蒽的核磁共振氢谱和碳谱数据为:
1H NMR (CDCl3, 400 MHz), δ= 7.46 (q, 4 H, J = 5.6 Hz), 7.20 (q, 4 H, J = 5.6 Hz); 13C NMR (CDCl3, 100 MHz), δ= 135.6, 128.8, 127.7。

Claims (2)

1. 一种基于硫粉合成噻蒽的简便方法,其特征为:将邻二碘苯0.5mmol, 硫粉0.5mmol,碘化亚铜0.05 mmo,1,10-菲啰啉0.1mmol和碳酸钾1.0mmol称入25mL圆底烧瓶,加入磁子和2mL二甲基亚砜,90oC下加热12小时,反应结束后加入蒸馏水10mL,并以乙酸乙酯萃取,所得有机相以无水Na2SO4干燥,过滤,所得滤液蒸除溶剂后,残余物通过硅胶柱层析分离提纯得到的噻蒽产物。
2. 根据权利要求1所述的一种基于硫粉合成噻蒽的简便方法,其特征在于,以硫粉为原料,和邻二碘苯通过四次碳-硫偶联成环得到噻蒽产物。
CN201510176702.XA 2015-04-15 2015-04-15 一种基于硫粉合成噻蒽的方法 Expired - Fee Related CN104844565B (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106916090A (zh) * 2017-03-29 2017-07-04 大连理工大学 一种基于九水硫化钠合成硫酚类化合物的制备方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CHUANZHOU TAO, ET AL.: "Ligand-Free Copper-Catalyzed Synthesis of Diaryl Thioethers from Aryl Halides and Thioacetamide", 《SYNLETT》 *
EDYTA M. BRZOSTOWSKA, ET AL.: "Polysulfane Antitumor Agents from o-Benzyne. An Odd-Even Alternation Found in the Stability of Products o-C6H4Sx (x=1-8)", 《J. ORG. CHEM.》 *
HSING-YING CHEN, ET AL.: "Use of Base Control To Provide High Selectivity between Diaryl Thioether and Diaryl Disulfide for C−S Coupling Reactions of Aryl Halides and Sulfur and a Mechanistic Study", 《ORGANOMETALLICS》 *
PENG ZHAO, ET AL.: "Cu-Catalyzed Synthesis of Diaryl Thioethers and S‑Cycles by Reaction of Aryl Iodides with Carbon Disulfide in the Presence of DBU", 《J. ORG. CHEM.》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106916090A (zh) * 2017-03-29 2017-07-04 大连理工大学 一种基于九水硫化钠合成硫酚类化合物的制备方法

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