2-溴-4,5-二甲氧基苯酚 | 129103-69-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 中文名称: 2-溴-4,5-二甲氧基苯酚
• 英文名称: 2-bromo-4,5-dimethoxyphenol
• CAS: 129103-69-1
• 化学式: C₈H₉BrO₃
• 分子量: 233.062
• InChiKey: YGMAGXHPUIGKFF-UHFFFAOYSA-N

物化性质

• 熔点：
  96.0 to 100.0 °C
• 沸点：
  285.3±35.0 °C(Predicted)
• 密度：
  1.532±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  38.7
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2909500000
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  室温且干燥环境下使用。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2-Bromo-4,5-dimethoxyphenol
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: 2-Bromo-4,5-dimethoxyphenol
CAS number: 129103-69-1

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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: C8H9BrO3
Molecular weight: 233.1

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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：

  2-溴-4,5-二甲氧基苯酚 在 盐酸 、 四(三苯基膦)钯 、 三溴化硼 、 sodium hydride 、 溶剂黄146 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 锌 作用下， 以 正己烷 、 二氯甲烷 、 乙酸乙酯 、 甲苯 为溶剂， 反应 119.75h， 生成 ningalin A
  参考文献：
  名称：

  利用杂环氮杂二烯 Diels-Alder 反应全合成 Ningalin A、Lamellarin O、Lukianol A 和 Permethyl Storniamide A

  摘要：

  基于常见的杂环氮杂二烯 Diels-Alder 策略 (1,2, 4,5-四嗪 → 1,2-二嗪 → 吡咯）非常适合构建三类海洋天然产物中的密集功能化吡咯核。对天然产物和许多合成中间体的检查表明，一些包括 lamellarin O (2) 和 Lukianol A (3) 对野生型和多药耐药肿瘤细胞系均表现出适度的细胞毒活性。从根本上更重要的是，公开了一类新的药剂，包括全甲基 storniamide A (5) 及其前体 30，它们缺乏固有的细胞毒活性，可以逆转多重耐药 (MDR) 表型，

  DOI：

  10.1021/ja982078+
• 作为产物：
  描述：

  6-溴藜芦醛 在 甲醇 、 sodium methylate 、 间氯过氧苯甲酸 作用下， 生成 2-溴-4,5-二甲氧基苯酚
  参考文献：
  名称：

  利用杂环氮杂二烯 Diels-Alder 反应全合成 Ningalin A、Lamellarin O、Lukianol A 和 Permethyl Storniamide A

  摘要：

  基于常见的杂环氮杂二烯 Diels-Alder 策略 (1,2, 4,5-四嗪 → 1,2-二嗪 → 吡咯）非常适合构建三类海洋天然产物中的密集功能化吡咯核。对天然产物和许多合成中间体的检查表明，一些包括 lamellarin O (2) 和 Lukianol A (3) 对野生型和多药耐药肿瘤细胞系均表现出适度的细胞毒活性。从根本上更重要的是，公开了一类新的药剂，包括全甲基 storniamide A (5) 及其前体 30，它们缺乏固有的细胞毒活性，可以逆转多重耐药 (MDR) 表型，

  DOI：

  10.1021/ja982078+

文献信息

• Stereoselective Cobalt-Catalyzed Cross-Coupling Reactions of Arylzinc Chlorides with α-Bromolactones and Related Derivatives
  作者：Maximilian S. Hofmayer、Alisa Sunagatullina、Daniel Brösamlen、Philipp Mauker、Paul Knochel

  DOI：10.1021/acs.orglett.9b04564

  日期：2020.2.21

  α-Bromolactones bearing a substituent in the β-position undergo a highly trans-diastereoselective arylation with arylzinc chlorides in the presence of 10-20% CoCl2 and 10-20% PPh3 in THF under mild conditions (25 °C, 16 h) leading to optically enriched α-arylated lactones and protected aldol products (99% ee) in 52-96% yield. The synthetic utility of this arylation was demonstrated by the stereoselective

  在温和条件下（25°C，16 h）在THF中存在10-20％CoCl2和10-20％PPh3的情况下，在芳基氯化锌存在下，在β位带有取代基的α-溴内酯经历高度反式-非对映选择性芳基化反应。以光学方式富集α-芳基化内酯和受保护的羟醛产物（99％ee），产率为52-96％。该芳基化的合成效用通过人工类胡萝卜素MOM保护的munduserol衍生物的立体选择性制备证明。
• 一种酚菲咯啉IVB族金属配合物及其制备和应用
  申请人：万华化学集团股份有限公司

  公开号：CN112142775B

  公开（公告）日：2023-01-13

  本发明提供一种酚菲咯啉IVB族金属配合物及其制备和应用，所述酚菲咯啉IVB族金属配合物如式I所示，本发明制备的配合物在应用于烯烃聚合尤其是烯烃/α‑烯烃共聚时不仅具有较高的催化活性，而且热稳定性好，更适用于高温聚合反应体系。
• Lewis Acid Catalyzed Reductive Cyclization of 2‐Aryloxybenzaldehydes and 2‐(Arylthio)benzaldehydes to Unsubstituted 9 <i>H</i> ‐Xanthenes and Thioxanthenes in Diisopropyl Ether
  作者：Shashi Kant Verma、Anamika Prajapati、Manoj Kumar Saini、Ashok K. Basak

  DOI：10.1002/adsc.202000836

  日期：2021.1.19

  Readily accessible 2‐aryloxybenzaldehydes and 2‐(arylthio)benzaldehydes undergo a sequence of reactions leading to a wide variety of unsubstituted 9H‐xanthenes and thioxanthenes in high yields when heated with a Lewis acid in diisopropyl ether. This reductive cyclization method is compatible with several important functional groups. The method is also applicable for the selective reductive cyclization

  易获得的2-芳氧基苯甲醛和2-（芳硫基）苯甲醛经过一系列反应，在路易斯酸在二异丙基醚中加热时，可高产率生成各种未取代的9 H-氧杂蒽和噻吨。该还原环化方法与几个重要的官能团兼容。该方法还适用于2,6-双（芳氧基）苯甲醛的电子含量更高的芳基环的选择性还原环化。该转变的关键特征是在醛基存在下，通过从二异丙基醚（溶剂）转移分子间的氢化物，化学选择性还原了瞬态的x鎓离子。
• Synthesis of 2-arylbenzofuran-3-carbaldehydes <i>via</i> an organocatalytic [3+2] annulation/oxidative aromatization reaction
  作者：Huiwen Zhang、Chunmei Ma、Ziwei Zheng、Rengwei Sun、Xinhong Yu、Jianhong Zhao

  DOI：10.1039/c8cc02474j

  日期：——

  A novel organocatalytic [3+2] annulation/oxidative aromatization reaction of enals with 2-halophenols or β-naphthols is reported. This process enables chemo- and regioselective access to 2-arylbenzofuran-3-carbaldehydes without the use of transition metals or strong oxidants. Preliminary mechanistic studies reveal that an unprecedented, organocatalytic, direct α-arylation pathway is involved.

  报道了烯类与2-卤代苯酚或β-萘酚的新型有机催化[3 + 2]环化/氧化芳构化反应。该方法能够在不使用过渡金属或强氧化剂的情况下对2-芳基苯并呋喃-3-甲醛进行化学和区域选择性反应。初步的机理研究表明，涉及到前所未有的有机催化直接α-芳基化途径。
• Trifluoromethyl aryl sulfonates (TFMS): An applicable trifluoromethoxylation reagent
  作者：Meng Lei、Hang Miao、Xueyuan Wang、Wen Zhang、Chengjian Zhu、Xiaqiang Lu、Jian Shen、Yanru Qin、Haoyang Zhang、Sijia Sha、Yongqiang Zhu

  DOI：10.1016/j.tetlet.2019.04.033

  日期：2019.5

  fluorine-containing groups, trifluoromethyl aryl ethers (ArOCF3) have unique properties in drug design and are difficult to be synthesized, and many different methods were developed to prepare them. A novel one-pot synthesis of o-iodine-aryl trifluoromethyl ethers (ArOCF3I) was described by the reaction of trifluoromethoxylation and iodination with trifluoromethyl aryl sulfonates (TFMS) in this manuscript

  氮之后，氟可能是掺入小分子中的另一个最受欢迎的杂原子。在许多含氟基团中，三氟甲基芳基醚（ArOCF 3）在药物设计中具有独特的特性，难以合成，因此开发了许多不同的方法来制备它们。的一种新的一锅法合成ø -碘-芳基三氟甲基醚（ArOCF 3 I）用的反应描述trifluoromethoxylation和碘化与三氟甲基芳基磺酸盐（TFMS）在该手稿。通过筛选不同的溶剂，冠醚，底物来优化反应条件，并且产物的比例和收率处于中等至高收率（高达86％）。