4-溴-2,5-二甲基苯酚 | 85223-93-4

• 物质功能分类: 有机原料 - 醇、酚、酚醇类化合物及衍生物 - 酚及其卤化、磺化、硝化或亚硝化衍生物
• 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: 4-溴-2,5-二甲基苯酚
• 中文别名: 2,5-二甲基-4-溴苯酚
• 英文名称: 4-bromo-2,5-dimethyl-phenol
• 英文别名: 4-Bromo-2,5-dimethylphenol
• CAS: 85223-93-4
• 化学式: C₈H₉BrO
• mdl: MFCD00029746
• 分子量: 201.063
• InChiKey: LZKYUWXZSBYMSA-UHFFFAOYSA-N

物化性质

• 熔点：
  87 °C
• 沸点：
  259.0±35.0 °C(Predicted)
• 密度：
  1.471±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

安全信息

• 海关编码：
  2908199090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4-Bromo-2,5-dimethylphenol
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: 4-Bromo-2,5-dimethylphenol
CAS number: 85223-93-4

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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: C8H9BrO
Molecular weight: 201.1

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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, 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

反应信息

• 作为反应物：
  描述：

  4-溴-2,5-二甲基苯酚 在 硝酸 、 溶剂黄146 作用下， 生成 4-溴-3,6-二甲基-2-硝基-苯酚
  参考文献：
  名称：

  v. Auwers, Fortschritte der Chemie, Physik und physikalischen Chemie, 1924, vol. 18, p. 43

  摘要：

  DOI：
• 作为产物：
  描述：

  2,5-二甲基苯酚 在 溴 作用下， 以 氯苯 为溶剂， 以76%的产率得到4-溴-2,5-二甲基苯酚
  参考文献：
  名称：

  Synthesis and antioxidant activity of 5-hydroxycoumarans, 6-hydroxychromanes and sulfur-containing derivatives on their base

  摘要：

  通过中间体2-丙烯基-4-烷氧基苯酚的制备，基于甲基酚成功合成了5-羟基香豆素、6-羟基克罗莫烯及其十二烷硫基甲基取代衍生物。合成的含硫化合物表现出作为甲基油酸自氧化抑制剂的高效性。

  DOI：

  10.1007/s11172-013-0200-4

文献信息

• Efficient and Regioselective Bromination of Aromatic Compounds with Ethylenebis(<i>N</i>-methylimidazolium) Ditribromide (EBMIDTB)
  作者：Rahman Hosseinzadeh、Mahmood Tajbakhsh、Maryam Mohadjerani、Zahra Lasemi

  DOI：10.1080/00397910903019975

  日期：2010.2.26

  A regioselective and highly efficient method for bromination of phenol and aniline derivatives using ethylenebis(N-methylimidazolium) ditribromide (EBMIDTB) as an efficient reagent in dichloromethane at ambient temperature is reported. The reagent can be recovered and reused several times.

  报告了一种区域选择性和高效的苯酚和苯胺衍生物溴化方法，该方法使用亚乙基双（N-甲基咪唑鎓）二溴化物（EBMIDTB）作为室温下二氯甲烷中的有效试剂。试剂可多次回收和重复使用。
• A Dearomatization/Debromination Strategy for the [4+1] Spiroannulation of Bromophenols with α,β‐Unsaturated Imines
  作者：Yicong Ge、Cheng Qin、Lu Bai、Jiamao Hao、Jingjing Liu、Xinjun Luan

  DOI：10.1002/anie.202008130

  日期：2020.10.19

  A novel [4+1] spiroannulation of o‐ & p‐bromophenols with α,β‐unsaturated imines has been developed for the direct synthesis of a new family of azaspirocyclic molecules. Notably, several other halophenols (X=Cl, I) were also applicable for this transformation. Moreover, a catalytic asymmetric version of the reaction was realized with 1‐bromo‐2‐naphthols by using a chiral ScIII/Py‐Box catalyst. Mechanistic

  已经开发了一种新颖的[4 + 1]邻和对溴苯酚与α，β-不饱和亚胺螺环合成的方法，用于直接合成新的氮杂螺环分子家族。值得注意的是，其他几种卤代酚（X = Cl，I）也适用于该转化。此外，通过使用手性Sc III / Py-Box催化剂，使用1-溴-2-萘酚实现了反应的催化不对称形式。机理研究表明，该多米诺反应是通过苯酚衍生物在其卤代位置的亲电触发的脱芳香化作用进行的，然后通过基于自由基的S RN 1机理用N-亲核试剂进行卤素置换。
• 2,5-DIALKYL-4-H/HALO/ETHER-PHENOL COMPOUNDS
  申请人：Tansna Therapeutics Inc.

  公开号：US20150148430A1

  公开（公告）日：2015-05-28

  The present disclosure provides phenolic compounds useful in the treatment of neurological conditions such as convulsions and tremors, having the structure of Formula (I): wherein R 2 , R 4 , & R 5 , are as defined in the detailed description; pharmaceutical compositions comprising at least one of the compounds; and methods for treating neurological conditions.

  本公开提供用于治疗诸如惊厥和震颤等神经学状况的酚类化合物，其具有公式（I）的结构： 其中R2、R4和R5如详细描述中定义；包含至少一种该化合物的药物组合物；以及用于治疗神经学状况的方法。
• o-Xylylene Bis(Triethyl Ammonium Tribromide) as a Mild and Recyclable Reagent for Rapid and Regioselective Bromination of Anilines and Phenols
  作者：Roya Hemati、Ashraf S. Shahvelayati、Khadijeh Yadollahzadeh

  DOI：10.2174/1570178615666180126153243

  日期：2018.7.2

  tribromide) (OXBTEATB) as a recyclable and high bromine containing di-(tribromide) reagent has been employed for the bromination of various organic substrates such as phenol and aniline or its derivatives. This catalyst can be recovered and reused several times. Methods: Aryl bromides shown in Table 1, were easily produced from bromination of aromatic compounds by OXBTEATB. This high-yield process lets

  背景：邻二甲苯基双（三乙基三溴化铵）（OXBTEATB）作为可循环使用的高溴化二（三溴化物）试剂已被用于溴化各种有机底物，例如苯酚和苯胺或其衍生物。该催化剂可以回收并重复使用几次。 方法：表1所示的芳基溴化物很容易通过OXBTEATB溴化芳族化合物制得。这种高产量的过程使试剂可以循环再利用。 结果：如表1所示，发现取代的苯胺，苯酚和β-萘酚是最具反应性的，并被OXBTEATB立即转化为相应的单溴化产物。 结论：OXBTEATB可以被认为是固化的溴。该新型试剂在不同的极性非质子溶剂中具有可变的溶解度，但不溶于非极性非质子溶剂中。随后，与液体溴相比，OXBTEATB被认为是更有用的溴化和区域选择性催化剂。
• Synthesis and nonlinear optical properties of chromophores for photorefractive polymer materials
  作者：Enrique Font-Sanchis、Francisco J. Céspedes-Guirao、Ángela Sastre-Santos、Belén Villacampa、Jesús Orduna、Raquel Alicante、Fernando Fernández-Lázaro

  DOI：10.1016/j.tet.2009.03.099

  日期：2009.6

  The synthesis and nonlinear optical (NLO) properties of a series of nitrostilbene-, dinitrostilbene-, and dicyanomethylenedihydrofuran-based chromophores potentially useful in photorefractive multifunctional polymers are reported. Electronic absorption spectra have been measured in different solvents. Electric field induced second harmonic (EFISH) generation results show that the 2-dicyanomethylen-3-cyano-5

  据报道，一系列基于硝基苯乙烯，二硝基苯乙烯和二氰基亚甲基二氢呋喃的生色团的合成和非线性光学（NLO）性能可能在光折变多功能聚合物中有用。电子吸收光谱已在不同溶剂中测量。电场诱导的二次谐波（EFISH）生成结果表明，2-二氰亚甲基-3-氰基-5,5-二甲基-2,5-二氢呋喃部分可导致最佳的NLO性能。与单硝基类似物相比，基于二硝基苯基的生色团显示出降低的非线性响应。理论上还确定了选定的硝基-二硝基对的非线性光学性质。