2-溴-4,5-二氟苯甲醛 | 476620-54-9

• 物质功能分类: 有机原料 - 有机氟化合物 - 氟苯甲醛系列
• 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: 2-溴-4,5-二氟苯甲醛
• 英文名称: 2-bromo-4,5-difluorobenzaldehyde
• CAS: 476620-54-9
• 化学式: C₇H₃BrF₂O
• 分子量: 221.001
• InChiKey: ZHSZEWFWVDLMDL-UHFFFAOYSA-N

物化性质

• 沸点：
  232.0±35.0 °C(Predicted)
• 密度：
  1.758±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2913000090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  室温环境下。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2-Bromo-4,5-difluorobenzaldehyde
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-difluorobenzaldehyde
CAS number: 476620-54-9

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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: C7H3BrF2O
Molecular weight: 221.0

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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 fluoride, 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-4,5-二氟苯甲醛 在 manganese(IV) oxide 、 四(三苯基膦)钯 、 sodium acetate 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 甲苯 为溶剂， 反应 56.67h， 生成 6,7-difluoro-N,3-diphenylnaphthalen-1-amine
  参考文献：
  名称：

  钯催化级联脱羧胺化/邻位烷基芳基酮与N-羟基酰胺的6-内切-苄基环合反应，以制得不同的1-萘胺衍生物。

  摘要：

  已经描述了通过连续的钯催化的脱羧胺化/分子内6-endo-dig苯环化反应生产高度取代的1-萘胺的有效且实用的一锅策略。在该反应中，在温和的反应条件下，各种各样的富电子，电子中性和缺电子的邻炔基芳基酮都能与N-羟基芳基/烷基酰胺良好反应，从而以优异的产率获得各种1-萘胺。克级合成法具有诸如不降低产品收率和易于转化的优点，说明了该方法的实用性。

  DOI：

  10.1021/acs.orglett.0c01183
• 作为产物：
  描述：

  2-溴-4,5-二氟苯甲酸 在 manganese(IV) oxide 、 硼烷四氢呋喃络合物 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 18.0h， 生成 2-溴-4,5-二氟苯甲醛
  参考文献：
  名称：

  HISTONE ACETYLTRANSFERASE (HAT) INHIBITOR AND USE THEREOF

  摘要：

  本发明涉及一种组蛋白乙酰转移酶（HAT）抑制剂。提供了一种由通式I表示的化合物，其药学上可接受的盐，立体异构体，对映异构体，顺反异构体，对映异构体，消旋体，多晶型，溶剂合物或其同位素标记化合物（包括氘取代），以及其制备方法，包含相同的药物组成，以及在治疗各种HAT相关疾病或症状中的用途。

  公开号：

  EP3782995A1

文献信息

• [EN] NAPHTHYLACETIC ACIDS<br/>[FR] ACIDES NAPHTYLACÉTIQUES
  申请人：HOFFMANN LA ROCHE

  公开号：WO2010055005A1

  公开（公告）日：2010-05-20

  The invention is concerned with the compounds of formula (I) and pharmaceutically acceptable salts and esters thereof, wherein X, Q, and R1-R6 are defined in the detailed description and claims. In addition, the present invention relates to methods of manufacturing and using the compounds of formula (I) as well as pharmaceutical compositions containing such compounds. The compounds of formula (I) are antagonists or partial agonists at the CRTH2 receptor and may be useful in treating diseases and disorders associated with that receptor such as asthma.

  本发明涉及式(I)的化合物以及药用可接受的盐和酯，其中X、Q和R1-R6在详细描述和权利要求中定义。此外，本发明还涉及制造和使用式(I)化合物的方法，以及包含此类化合物的药物组合物。式(I)的化合物是CRTH2受体的拮抗剂或部分激动剂，可用于治疗与该受体相关的疾病和失调，如哮喘。
• [EN] PRMT5 INHIBITORS<br/>[FR] INHIBITEURS DE PRMT5
  申请人：LUPIN LTD

  公开号：WO2020250123A1

  公开（公告）日：2020-12-17

  The invention relates to substituted nucleoside analogues of formula (I), pharmaceutically acceptable salts thereof and pharmaceutical compositions for treating diseases, disorders or conditions associated with the overexpression of PRMT5 enzyme. The invention also relates to methods of treating diseases, disorders or conditions associated with the overexpression of PRMT5 enzyme.

  该发明涉及公式（I）的替代核苷类似物，其药用盐以及用于治疗与PRMT5酶过度表达相关的疾病、紊乱或状况的药物组合物。该发明还涉及治疗与PRMT5酶过度表达相关的疾病、紊乱或状况的方法。
• N-SULFONAMIDO POLYCYCLIC PYRAZOLYL COMPOUNDS
  申请人：Konradi Andrei W.

  公开号：US20100081680A1

  公开（公告）日：2010-04-01

  The current invention provides compounds having a structure according to Formulae 1, 2, 3, and 4: wherein the A-ring, B-ring, C-ring, m, n, R 25 , R 50 , and R 51 are as described in the specification. The invention also provides pharmaceutical compositions comprising compounds of Formulae 1, 2, 3, and 4, as well as methods of treating cognitive disorders, such as Alzheimer's disease. The invention further provides intermediates useful in preparing the compounds of Formulae 1, 2, 3, and 4.

  当前发明提供具有根据公式1、2、3和4结构的化合物：其中A环、B环、C环、m、n、R25、R50和R51如说明书所述。该发明还提供了包含公式1、2、3和4化合物的药物组合物，以及治疗认知障碍的方法，如阿尔茨海默病。该发明进一步提供了用于制备公式1、2、3和4化合物的有用的中间体。
• Palladium-Catalyzed Aminomethylative Oppolzer-Type Cyclization of Enynes: Access to Aminomethylated Benzofulvenes
  作者：Renbin Huang、Bangkui Yu、Renren Li、Hanmin Huang

  DOI：10.1021/acs.orglett.1c03720

  日期：2021.12.17

  A novel palladium-catalyzed Oppolzer-type cyclization reaction aided by the aminomethyl cyclopalladated complex has been developed, which provides rapid access to functionalized benzofulvenes with excellent stereoselectivity. The corresponding products can undergo Diels–Alder reaction with maleimides, providing a series of complex polycyclic compounds with excellent regio- and stereoselectivities.

  已开发出一种由氨甲基环钯配合物辅助的新型钯催化 Oppolzer 型环化反应，可快速获得具有优异立体选择性的官能化苯并富烯。相应的产物可以与马来酰亚胺发生狄尔斯-阿尔德反应，提供一系列具有优异区域和立体选择性的复杂多环化合物。
• Grignard Reagent/CuI/LiCl-Mediated Stereoselective Cascade Addition/Cyclization of Diynes: A Novel Pathway for the Construction of 1-Methyleneindene Derivatives
  作者：De-Yao Li、Yin Wei、Min Shi

  DOI：10.1002/chem.201302191

  日期：2013.11.11

  Diynes containing a cyclopropane group smoothly undergo a novel intramolecular and stereoselective cascade addition/cyclization reaction to produce the corresponding 1‐methyleneindene derivatives in moderate to good yields. This interesting transformation is mediated by Grignard reagent/CuI with LiCl as an additive under mild conditions. The obtained product can easily be further functionalized through

  含有环丙烷基团的二炔顺利进行新型分子内和立体选择性级联加成/环化反应，以中等至良好的收率生产相应的1-亚甲基茚衍生物。这种有趣的转化是由格氏试剂/ CuI在温和条件下用LiCl作为添加剂介导的。所获得的产物可以通过环丙基开环容易地进一步官能化。在氘标记和对照实验的基础上，还提出了合理的反应机理。