9,10-二溴蒽

维基百科,自由的百科全书
跳到导航 跳到搜索
9,10-二溴蒽
英文名 9,10-Dibromoanthracene
识别
CAS号 523-27-3  ✓
PubChem 68226
ChemSpider 61529
SMILES
性质
化学式 C14H8Br2
摩尔质量 336.02 g·mol−1
外观 黄色晶体
密度 1.983 g·cm−3[1]
熔点 225-226 °C(498-499 K)[2]
溶解性 5.7×10−5 g·L−1(水,25 °C)[3]
12.10 g·L−1甲苯,23 °C)[4]
危险性
GHS危险性符号
《全球化学品统一分类和标签制度》(简称“GHS”)中有害物质的标签图案《全球化学品统一分类和标签制度》(简称“GHS”)中对环境有害物质的标签图案
GHS提示词 警告
H-术语 H315, H319, H335, H400, H410
P-术语 P261, P264, P271, P273, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P391
相关物质
相关化学品 9-溴蒽
9,10-二苯蒽
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

9,10-二溴蒽是一种有机化合物,化学式为C14H8Br2,它是二溴蒽英语Dibromoanthracene的同分异构体之一。它于1923年首次被合成,也是第一个通过原子力显微镜扫描隧道显微镜观测到化学反应的单分子。[5]

合成及性质[编辑]

9,10-二溴蒽可由三氯甲烷中反应得到,反应结束后蒸去溶剂,在二氯甲烷中重结晶,可以得到黄色针状晶体。[6]

它在电激发下发出蓝光。[7]

反应[编辑]

9,10-二溴蒽的C–Br键在扫描隧道显微镜尖端的电压脉冲中断裂,在该条件下,它先后生成单、双自由基,并通过伯格曼环化反应生成二炔。[8]

Dibromoanthracene STM reaction.png

9,10-二溴蒽在乙醚中和正丁基锂反应,生成9-锂-10-溴蒽(乙醚合物二聚体)。[6]它可以被金属1-丁基-3-甲基咪唑鎓溴化物德语1-Butyl-3-methylimidazoliumbromid脱溴,得到9-溴蒽[9]在碱存在及镍或钯催化剂催化下,它可以和苯硼酸发生铃木-宫浦偶联反应,生成9,10-二苯蒽[10]

Synthesis of 9,10-diphenylanthracenes.png

它和红磷KOH·0.5H2O/DMSO超碱体系中加热反应,可以得到9,10-二氢蒽英语9,10-Dihydroanthracene[11]

参考文献[编辑]

  1. ^ Trotter, J. Refinements of the structures of 9,10-dibromo- and 9,10-dichloroanthracene. Acta Crystallographica Section C Crystal Structure Communications (International Union of Crystallography (IUCr)). 1986-07-01, 42 (7): 862–864. ISSN 0108-2701. doi:10.1107/s0108270186094271 (英语). 
  2. ^ Wittig, Georg; Harle, Horst; Knauss, Erhard; Niethammer, Konrad. Synthesis of derivatives of triptycene and isoazatriptycene. Chemische Berichte. 1960, 93: 951–962. ISSN 0009-2940 (德语). 
  3. ^ Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (C) 1994-2021 ACD/Labs. SciFinder (英语). 
  4. ^ Seo, Tamae; Toyoshima, Naoki; Kubota, Koji; Ito, Hajime. Tackling Solubility Issues in Organic Synthesis: Solid-State Cross-Coupling of Insoluble Aryl Halides. Journal of the American Chemical Society (American Chemical Society (ACS)). 2021-03-30, 143 (16): 6165–6175. ISSN 0002-7863. doi:10.1021/jacs.1c00906 (英语). 
  5. ^ 9,10-Dibromoanthracene. American Chemical Society. 2016-04-25 [2021-09-10] (英语). 
  6. ^ 6.0 6.1 Stern, Daniel; Finkelmeier, Nils; Meindl, Kathrin; Henn, Julian; Stalke, Dietmar. Consecutive Donor-Base Exchange in Anthracenyllithium Compounds. Angewandte Chemie International Edition (Wiley). 2010-08-02, 49 (38): 6869–6872. ISSN 1433-7851. doi:10.1002/anie.201002873 (英语). 
  7. ^ Brar, Sukhwinder Singh; Mahajan, Aman; Bedi, R. K. Structural, optical and electrical characterization of hot wall grown 9,10-dibromoanthracene films for light emitting applications. Electronic Materials Letters. 10 January 2014, 10 (1): 199–204. S2CID 135788635. doi:10.1007/s13391-013-3153-8 (英语). 
  8. ^ Borman, Stu. Chemists Nudge Molecule To React Then Watch Bonds Break And Form 94 (5). 2016: 7. 
  9. ^ Cañete, Álvaro; Salas, Cristian; Zacconi, Flavia. Efficient Indium-Mediated Dehalogenation of Aromatics in Ionic Liquid Media. Molecules (MDPI AG). 2012-12-28, 18 (1): 398–407. ISSN 1420-3049. doi:10.3390/molecules18010398 (英语). 
  10. ^ Talukder, Md Muktadir; Cue, John Michael O.; Miller, Justin T.; Gamage, Prabhath L.; Aslam, Amina; McCandless, Gregory T.; Biewer, Michael C.; Stefan, Mihaela C. Ligand Steric Effects of α-Diimine Nickel(II) and Palladium(II) Complexes in the Suzuki–Miyaura Cross-Coupling Reaction. ACS Omega (American Chemical Society (ACS)). 2020-09-10, 5 (37): 24018–24032. ISSN 2470-1343. doi:10.1021/acsomega.0c03415 (英语). 
  11. ^ Kuimov, Vladimir A.; Gusarova, Nina K.; Malysheva, Svetlana F.; Trofimov, Boris A. Transition metal-free regioselective access to 9,10-dihydroanthracenes via the reaction of anthracenes with elemental phosphorus in the KOH/DMSO system. Tetrahedron Letters (Elsevier BV). 2018, 59 (52): 4533–4536. ISSN 0040-4039. doi:10.1016/j.tetlet.2018.10.075 (英语).