1,2-二溴-4-硝基苯 | 5411-50-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1,2-二溴-4-硝基苯
• 中文别名: 3,4-二溴硝基苯
• 英文名称: 3,4-dibromonitrobenzene
• 英文别名: 1,2-dibromo-4-nitrobenzene；1,2-Dibrom-4-nitrobenzol；4-nitro-1,2-dibromobenzene
• CAS: 5411-50-7
• 化学式: C₆H₃Br₂NO₂
• mdl: MFCD00055373
• 分子量: 280.903
• InChiKey: DLLDRYLYVHKDKK-UHFFFAOYSA-N

物化性质

• 熔点：
  58.5°C
• 沸点：
  296°C (rough estimate)
• 密度：
  2.2414 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  45.8
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2904909090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  室温且干燥环境下

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 1,2-Dibromo-4-nitrobenzene
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: 1,2-Dibromo-4-nitrobenzene
CAS number: 5411-50-7

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C6H3Br2NO2
Molecular weight: 280.9

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen bromide.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

化学性质
黄色针状或片状结晶体，熔点为58-59℃，沸点296℃，在180℃时能升华（气压2.66kPa），相对密度为2.354（8/4℃），折光率为1.9853（111℃）。它溶于乙醇、苯和乙酸，而不溶于水。此外，该物质还能随水蒸汽挥发。

用途
作为有机合成的中间体。

生产方法
由对硝基溴苯经过溴化反应制得。

反应信息

• 作为反应物：
  描述：

  1,2-二溴-4-硝基苯 在 palladium on activated charcoal 吡啶 、 copper(I) bromide 、 四(三苯基膦)钯 、 氢气 、 三乙胺 作用下， 以 乙醇 为溶剂， 反应 1.17h， 生成 p-n-heptylacetanilide
  参考文献：
  名称：

  Rates and regioselectivities of the palladium-catalyzed ethynylation of substituted bromo- and dibromobenzenes

  摘要：

  DOI：

  10.1021/jo00279a040
• 作为产物：
  描述：

  2-溴-4-硝基苯胺 在 硫酸 、 溶剂黄146 、 sodium nitrite 作用下， 生成 1,2-二溴-4-硝基苯
  参考文献：
  名称：

  Crowther et al., Journal of the Chemical Society, 1951, p. 1774,1778

  摘要：

  DOI：

文献信息

• <i>meta</i> ‐Nitration of Arenes Bearing <i>ortho</i> / <i>para</i> Directing Group(s) Using C−H Borylation
  作者：Xuejing Li、Xingwang Deng、Anthony G. Coyne、Rajavel Srinivasan

  DOI：10.1002/chem.201901633

  日期：2019.6.18

  of arenes bearing ortho/para directing group(s) using the iridium‐catalyzed C−H borylation reaction followed by a newly developed copper(II)‐catalyzed transformation of the crude aryl pinacol boronate esters into the corresponding nitroarenes in a one‐pot fashion. This protocol allows the synthesis of meta‐nitrated arenes that are tedious to prepare or require multistep synthesis using the existing

  在本文中，我们报道了荟萃芳烃的-nitration轴承邻/对位用铱催化的C-H硼化反应之后是新开发的铜（II）粗频哪醇的芳基硼酸酯入的催化的变换引导组（多个）以一锅的方式对应的硝基芳烃。该协议允许的合成元-nitrated芳烃是乏味来制备或使用现有的方法需要多步合成。该反应可耐受多种邻位/对位导向基团，例如-F，-Cl，-Br，-CH 3，-Et，-i Pr -OCH 3和-OCF 3。它还提供对π电子缺陷杂环的硝基衍生物（例如吡啶和喹啉衍生物）的区域选择性访问。该方法的应用在复杂分子的后期修饰中以及在以克级制备到FDA批准的药物Nilotinib途中的中间体中得到了证明。最后，我们证明了通过该策略获得的硝基产物也可以通过Baran的胺化方案直接转化为苯胺或受阻胺。
• Palladium Nanoparticles on Silica Nanospheres for Switchable Reductive Coupling of Nitroarenes
  作者：Bhairi Lakshminarayana、Arun Kumar Manna、G. Satyanarayana、Ch. Subrahmanyam

  DOI：10.1007/s10562-020-03127-w

  日期：2020.8

  sustainable Pd/SiO 2 nanospheres catalyst. Further, its catalytic activity was demonstrated for the direct reductive coupling of nitroarenes under mild conditions. While the reaction with Pd nanoparticles on other supporting materials such as modified carbon materials and TiO 2 , under similar conditions, resulted formation of amines exclusively. Therefore, it was confirmed that the SiO 2 was found to

  摘要 在本研究中，我们合成了一种稳健且可持续的 Pd/SiO 2 纳米球催化剂。此外，其在温和条件下对硝基芳烃的直接还原偶联具有催化活性。而在类似条件下，与其他载体材料（如改性碳材料和 TiO 2 ）上的 Pd 纳米颗粒反应，只会形成胺。因此，证实SiO 2 被发现是对硝基芳烃的选择性还原偶联的最佳支持材料。此外，催化剂可以循环使用多达五个循环，产品收率略有损失（< 2% 收率）。图形摘要
• Metal Complexes Based on Tetrathiafulvalene‐Fused π‐Extended Schiff Base Ligands – Syntheses, Characterization, and Properties
  作者：Jie Qin、Chen‐Xi Qian、Nan Zhou、Rong‐Mei Zhu、Yi‐Zhi Li、Jing‐Lin Zuo、Xiao‐Zeng You

  DOI：10.1002/ejic.201101022

  日期：2012.1

  π-Conjugated tetrathiafulvalene (TTF)-based donors with a monoamine moiety, 2-[4,5-bis(methylthio)-1,3-dithiol-2-ylidene]-1,3-benzodithiol-5-amine (La) and 2-(5,6-dihydro[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-1,3-benzodithiol-5-amine (Lb), have been synthesized. Condensation of the TTF amines with different pyridinecarbaldehydes afforded new TTF-fused π-extended Schiff base ligands, La-imine-4-pyridyl

  π-共轭四硫富瓦烯 (TTF) 基供体，具有单胺部分，2-[4,5-双(甲硫基)-1,3-二硫醇-2-亚基]-1,3-苯并二硫醇-5-胺 (La)和 2-(5,6-dihydro[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-1,3-benzodithiol-5-amine (Lb), 已合成. TTF 胺与不同的吡啶甲醛缩合得到新的 TTF 稠合 π 扩展席夫碱配体 La-亚胺-4-吡啶基 (L1)、La-亚胺-3-吡啶基 (L2) 和 Lb-亚胺-2-吡啶基(L3)。基于这些席夫碱吡啶配体的四种金属配合物，M(hfac)2(L)2 (M = CuII, L = L1, 4; M = MnII, L = L1, 5; M = CuII, L = L2, 6 ; hfac = 六氟乙酰丙酮化物) 和 [Re(CO)4(L3)][Re2(CO)6Cl3]
• [EN] PROCESS FOR THE PREPARATION OF ORGANIC BROMIDES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE BROMURES ORGANIQUES
  申请人：TECHNION RES & DEV FOUNDATION

  公开号：WO2017060905A1

  公开（公告）日：2017-04-13

  The present invention provides a process for the preparation of organic bromides, by a radical bromodecarboxylation of carboxylic acids with a bromoisocyanurate.

  本发明提供了一种有机溴化物的制备方法，通过使用溴异氰酸酯对羧酸进行自由基溴脱羧化反应。
• Synthesis and biological evaluation of piperazinyl heterocyclic antagonists of the gonadotropin releasing hormone (GnRH) receptor
  作者：Matthew D. Vera、Joseph T. Lundquist、Murty V. Chengalvala、Joshua E. Cottom、Irene B. Feingold、Lloyd M. Garrick、Daniel M. Green、Diane B. Hauze、Charles W. Mann、John F. Mehlmann、John F. Rogers、Linda Shanno、Jay E. Wrobel、Jeffrey C. Pelletier

  DOI：10.1016/j.bmcl.2010.02.099

  日期：2010.4

  orally active GnRH antagonists based on a 4-piperazinylbenzimidazole template, we sought to investigate the properties of heterocyclic isosteres of the benzimidazole template. We report here the synthesis and biological activity of eight novel scaffolds, including imidazopyridines, benzothiazoles and benzoxazoles. The 2-(4-tert-butylphenyl)-8-(piperazin-1-yl)imidazo[1,2-a]pyridine ring system was shown

  促性腺激素释放激素（GnRH）受体的拮抗作用已在生殖组织疾病（例如子宫内膜异位症和前列腺癌）中产生了积极的临床结果。继最近发现基于4-哌嗪基苯并咪唑模板的口服活性GnRH拮抗剂后，我们试图研究苯并咪唑模板的杂环等位体的性质。我们在这里报告了八个新型支架的合成和生物学活性，包括咪唑并吡啶，苯并噻唑和苯并恶唑。2-（4-叔丁基苯基）-8-（哌嗪-1-基）咪唑[1,2- a已显示]吡啶环系统对人和大鼠GnRH受体具有纳摩尔结合力，并在体外具有功能拮抗作用。报告了该系列中其他结构-活性关系以及与基于苯并咪唑的铅分子的药代动力学比较。

表征谱图