CN108383809B - 一种硼氢化合物thf·b3h7的制备方法 - Google Patents
一种硼氢化合物thf·b3h7的制备方法 Download PDFInfo
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- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910010277 boron hydride Inorganic materials 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 9
- LBAQSKZHMLAFHH-UHFFFAOYSA-N ethoxyethane;hydron;chloride Chemical compound Cl.CCOCC LBAQSKZHMLAFHH-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims 3
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000001308 synthesis method Methods 0.000 abstract 1
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 5
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002879 Lewis base Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/06—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
- C07D307/08—Preparation of tetrahydrofuran
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
本发明公开了一种硼氢化合物THF·B3H7的合成方法,在无水无氧的条件下将KB3H8加入到反应容器中,再加入四氢呋喃,然后滴加HCl的乙醚溶液,于‑80~60℃搅拌反应制得纯净目标产物硼氢化合物THF·B3H7。本发明操作简单,易提纯,安全可靠,适合规模化生产。
Description
技术领域
本发明属于硼氢化合物的制备技术领域,具体涉及一种硼氢化合物THF·B3H7的制备方法。
背景技术
硼氢化合物B3H7由于其较高的含氢量,在储氢领域具有非常大的应用前景,如已制备出的储氢材料,含有大量的负氢;并且在常见的有机溶剂中有很好的溶解性,因此能够作为还原剂使用;并且可以作为制备其它含硼化合物的前驱物,如制备NH3B3H7的前驱物。
B3H7的缺电子性决定了它不能单独存在,会与反应体系中的任何路易斯碱形成加合物,如:THF·B3H7、DME·B3H7和CH3CN·B3H7。由于制备方法的限制,B3H7硼氢化合物没有得到很好的发展。因此,研制一种操作简单、安全无毒且成本低廉的制备方法非常有必要。
就目前制备B3H7类硼氢化合物的方法主要有以下三种:
1、利用HCl气体在乙腈中与B3H8的盐反应生成CH3CN·B3H7,由于乙腈强的路易斯碱性,给电子能力很强,会造成B3H7的分解,对提纯造成了困难,并且产率很低;
2、电氧化B3H8的金属盐来制取B3H7,但是在操作的过程中危险系数比较高;
3、在乙二醇二甲醚中单质碘低温下氧化B3H8的金属盐生成加合物DME·B3H7,由于碘单质的强氧化性,很容易造成局部过度的氧化,将产物B3H7接着氧化,且反应是在低温下进行的,操作麻烦。
目前B3H7类硼氢化合物的制备方法产率低,杂质多,并且不易操作,危险性高。鉴于以上制备B3H7类硼氢化合物的不利因素,有必要设计一种操作简单、产率高、易提纯且安全可靠的硼氢化合物B3H7的制备方法。
发明内容
本发明解决的技术问题是提供了一种操作简单、产率高、易提纯且安全可靠的硼氢化合物THF·B3H7的制备方法。
本发明为解决上述技术问题采用如下技术方案,一种硼氢化合物THF·B3H7的制备方法,其特征在于具体过程为:在无水无氧的条件下将KB3H8加入到反应容器中,再加入四氢呋喃,然后滴加HCl的乙醚溶液,于-80~60℃搅拌反应制得纯净目标产物硼氢化合物THF·B3H7。
进一步优选,所述的硼氢化合物THF·B3H7的制备方法,其特征在于具体步骤为:在氮气手套箱中,将KB3H8装入schlenk反应瓶中,用塞子密封后将schlenk反应瓶移出手套箱,再加入四氢呋喃,然后加入摩尔浓度为0.1~1mol/L的HCl的乙醚溶液,其中HCl与 KB3H8的投料摩尔比为1:1,于-80~60℃搅拌反应1~10h,过滤除去不溶物即得到纯净的 THF·B3H7的THF溶液。
本发明所述的硼氢化合物THF·B3H7的制备方法中的反应方程式为:
KB3H8+HCl+THF=THF·B3H7+H2+KCl
本发明与现有技术相比具有以下有益效果:本发明操作简单,易提纯,安全可靠,适合规模化生产。
附图说明
图1是本发明实施例1制得的硼氢化合物THF·B3H7在四氢呋喃中的11B液体核磁图,由图可知制得的目标产物为纯净的THF·B3H7的四氢呋喃溶液。
具体实施方式
以下通过实施例对本发明的上述内容做进一步详细说明,但不应该将此理解为本发明上述主题的范围仅限于以下的实施例,凡基于本发明上述内容实现的技术均属于本发明的范围。
实施例1
所有操作均在氮气气氛下进行。在手套箱中,向装有磁子的250mL的schlenk反应瓶中加入0.80g KB3H8,用塞子密封后将schlenk反应瓶移出手套箱,再加入25mL四氢呋喃,然后滴加100mL摩尔浓度为0.1mol/L的HCl的乙醚溶液,于-80℃搅拌反应10h,过滤除去不溶物,即得到THF·B3H7的THF溶液,核磁检测其纯度接近100%。
实施例2
所有操作均在氮气气氛下进行。在手套箱中,向装有磁子的100mL的schlenk反应瓶中加入0.80g KB3H8,用塞子密封后将schlenk反应瓶移出手套箱,再加入25mL四氢呋喃,然后滴加20mL摩尔浓度为0.5mol/L的HCl的乙醚溶液,于-20℃搅拌反应4h,过滤除去不溶物,即得到THF·B3H7的THF溶液,核磁检测其纯度接近100%。
实施例3
所有操作均在氮气气氛下进行。在手套箱中,向装有磁子的100mL的schlenk反应瓶中加入0.80g KB3H8,用塞子密封后将schlenk反应瓶移出手套箱,再加入25mL四氢呋喃,然后滴加10mL摩尔浓度为1mol/L的HCl的乙醚溶液,于0℃搅拌反应3h,过滤除去不溶物,即得到THF·B3H7的THF溶液,核磁检测其纯度接近100%。
实施例4
所有操作均在氮气气氛下进行。在手套箱中,向装有磁子的100mL的schlenk反应瓶中加入0.80g KB3H8,用塞子密封后将schlenk反应瓶移出手套箱,再加入25mL四氢呋喃,然后滴加10mL摩尔浓度为1mol/L的HCl的乙醚溶液,于60℃搅拌反应1h,过滤除去不溶物,即得到THF·B3H7的THF溶液,核磁检测其纯度接近100%。
以上实施例描述了本发明的基本原理、主要特征及优点,本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明原理的范围下,本发明还会有各种变化和改进,这些变化和改进均落入本发明保护的范围内。
Claims (2)
1.一种硼氢化合物THF·B3H7的制备方法,其特征在于具体过程为:在无水无氧的条件下将KB3H8加入到反应容器中,再加入四氢呋喃,然后滴加HCl的乙醚溶液,于-80~60℃搅拌反应制得纯净目标产物硼氢化合物THF·B3H7。
2.根据权利要求1所述的硼氢化合物THF·B3H7的制备方法,其特征在于具体步骤为:在氮气手套箱中,将KB3H8装入schlenk反应瓶中,用塞子密封后将schlenk反应瓶移出手套箱,再加入四氢呋喃,然后加入摩尔浓度为0.1~1mol/L的HCl的乙醚溶液,其中HCl与KB3H8的投料摩尔比为1:1,于-80~60℃搅拌反应1~10h,过滤除去不溶物即得到纯净的THF·B3H7的THF溶液。
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Non-Patent Citations (4)
Title |
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Ammonia Triborane: A New Synthesis, Structural;Chang Won Yoon等;《J. AM. CHEM. SOC.》;20090228;第131卷(第2期);855-864 * |
Reaction of Tetraborane(lO) with Trimethylphosphine in Tetrahydrofuran;MAMORU SHIMOI等;《Inorg. Chem.》;19831130;第22卷(第22期);3300-3304 * |
Reactions of Pentaborane(ll) with Ethers;GOJI KODAMA等;《Inorganic Chemistry》;19750930;第14卷(第9期);2243-2249 * |
Tautomerism Exchange in B3H7N(CH3)3;Morey A. Ring等;《Inorganic Chemistry》;19670430;第6卷(第2期);395-396 * |
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