2-甲氧基-5-三氟甲基吡啶 | 175277-45-9

• 物质功能分类: 医药中间体 - 杂环化合物 - 吡啶类化合物
• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 2-甲氧基-5-三氟甲基吡啶
• 中文别名: 2-甲氧基-5-(三氟甲基)吡啶
• 英文名称: 2-methoxy-5-(trifluoromethyl)pyridine
• 英文别名: 5-trifluoromethyl-2-methoxypyridine
• CAS: 175277-45-9
• 化学式: C₇H₆F₃NO
• mdl: MFCD00153203
• 分子量: 177.126
• InChiKey: KNIGTEGBOBDGKP-UHFFFAOYSA-N

物化性质

• 熔点：
  161C
• 沸点：
  166.6±40.0 °C(Predicted)
• 密度：
  1.297g/cm

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.285
• 拓扑面积：
  22.1
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 危险等级：
  IRRITANT
• 危险品标志：
  Xn,Xi
• 安全说明：
  S26,S36/37/39
• 危险类别码：
  R20/21/22
• 危险品运输编号：
  1993
• 海关编码：
  2933399090
• 危险类别：
  IRRITANT
• 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-Methoxy-5-trifluoromethylpyridine
Synonyms: 2-Methoxy-5-(trifluoromethyl)pyridine

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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-Methoxy-5-trifluoromethylpyridine
CAS number: 175277-45-9

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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: C7H6F3NO
Molecular weight: 177.1

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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, nitrogen oxides, hydrogen fluoride.

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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-甲氧基-5-三氟甲基吡啶 在 溴化铵 、 potassium bromide 作用下， 以 氨 为溶剂， 生成 2-甲氧基-5-甲基吡啶
  参考文献：
  名称：

  离子自由基中键断裂的动力学。氟甲基芳烃碳氟键还原裂解的机理和反应性

  摘要：

  在液氨和 DMF 中，通过循环伏安法和/或氧化还原催化，研究了氟甲基芳烃中碳 - 氟键的还原裂解机制和反应性，作为氟原子数量和芳基结构的函数部分。三氟化合物的还原，最终导致完全脱氟，涉及作为中间体的二氟和单氟衍生物。卡宾不沿反应途径蒸腾。分子内解离电子转移模型的应用允许在驱动力和内在势垒方面定量合理化初级阴离子自由基的裂解反应性随氟原子数的变化以及芳基部分的结构与介质的溶剂化特性一样。

  DOI：

  10.1021/ja971094o
• 作为产物：
  描述：

  2-氯-5-碘吡啶 在 potassium fluoride 、 copper(l) iodide 、 1,10-菲罗啉 、 硼酸三甲酯 、 sodium hydride 作用下， 以 二甲基亚砜 、 N,N-二甲基甲酰胺 为溶剂， 反应 24.0h， 生成 2-甲氧基-5-三氟甲基吡啶
  参考文献：
  名称：

  铜催化烷氧基吡啶衍生物的三氟甲基化

  摘要：

  由于其药理学相关性，芳香和杂芳香核的三氟甲基化近年来引起了相当大的兴趣。我们研究了将简单的铜催化三氟甲基化方案扩展到烷氧基取代的碘代吡啶及其苯并类似物。三氟甲基化在所有情况下都顺利进行，所需的化合物被分离和表征。在 3-iodo-4-甲氧基喹啉的三氟甲基化中，我们观察到伴随的 ON 甲基迁移，导致三氟甲基化喹诺酮作为产物。总体而言，所描述的程序应有助于在药物化学中更广泛地使用铜催化的三氟甲基化。

  DOI：

  10.3390/molecules25204766

文献信息

• Cobalt-Catalyzed Alkylation of Drug-Like Molecules and Pharmaceuticals Using Heterocyclic Phosphonium Salts
  作者：Xuan Zhang、Andrew McNally

  DOI：10.1021/acscatal.9b00851

  日期：2019.6.7

  pyridines are common in pharmaceuticals, and metal catalysis is frequently used to prepare this motif via Csp2–Csp3 coupling processes. We present a cobalt-catalyzed coupling reaction between pyridine phosphonium salts and alkylzinc reagents that can be applied to complex drug-like fragments and for late-stage functionalization of pharmaceuticals. The reaction generally proceeds at room temperature, and 4-position

  烷基化吡啶在药物中很常见，并且金属催化通常通过Csp 2 –Csp 3偶联过程用于制备该基序。我们提出了吡啶phospho盐和烷基锌试剂之间的钴催化偶联反应，该反应可应用于复杂的药物样片段和药物的后期功能化。该反应通常在室温下进行，这种策略的前体是4-位吡啶CH键。鉴于在复杂的吡啶中选择性地安装（伪）卤化物面临的挑战，这种分两步进行的过程可以使分子集烷基化，这对使用传统的交叉偶联方法而言是具有挑战性的。
• Role of Mono-N-protected Amino Acid Ligands in Palladium(II)-Catalyzed Dehydrogenative Heck Reactions of Electron-Deficient (Hetero)arenes: Experimental and Computational Studies
  作者：Xuefeng Cong、Huarong Tang、Chao Wu、Xiaoming Zeng

  DOI：10.1021/om400890p

  日期：2013.11.11

  We report here that mono-N-protected amino acids (MPAAs), an important environmentally compatible structural motif, enable acceleration of Pd(II)-catalyzed dehydrogenative Heck reactions between pyridines and electron-deficient arenes with simple alkenes, leading to diversely functionalized C3- or meta-selective alkenylated pyridines and benzenes via non-chelate-assisted C–H activation. A comprehensive

  我们在这里报告，单N保护的氨基酸（MPAAs），一种重要的环境相容性结构基序，能够加速Pd（II）催化的吡啶和电子不足的芳烃与简单烯烃之间的脱氢Heck反应，从而导致功能化的C3 -或meta通过非螯合物辅助的C–H活化选择性烯基化吡啶和苯。通过DFT计算进行的全面理论研究表明，MPAA配体的氨基支架通过最初的N–H活化容易地转化为X型配体，从而导致吡啶C–H裂解的活化障碍相对较低。然后，氨基的性质从X型配体转变为L型配体使得烯烃取代可以顺利进行，而羧基则可以形成分子内氢键，从而大大降低了碳pal触动的激活障碍。计算结果和动力学同位素效应测量结果支持了限速C–H活化，其机制涉及协同的金属化/去质子化途径，吸热值为31。
• Copper-Mediated Perfluoroalkylation of Heteroaryl Bromides with (phen)CuR_F
  作者：Michael G. Mormino、Patrick S. Fier、John F. Hartwig

  DOI：10.1021/ol500422t

  日期：2014.3.21

  synthetic goal over the past several decades. Previously, our group reported phenanthroline-ligated perfluoroalkyl copper reagents, (phen)CuRF, which react with aryl iodides and aryl boronates to form the corresponding benzotrifluorides. Herein the perfluoroalkylation of a series of heteroaryl bromides with (phen)CuCF3 and (phen)CuCF2CF3 is reported. The mild reaction conditions allow the process to tolerate

  在过去的几十年里，将全氟烷基连接到有机化合物上一直是一个主要的合成目标。以前，我们的小组报道了菲咯啉连接的全氟烷基铜试剂 (phen)CuR F，它与芳基碘化物和芳基硼​​酸酯反应形成相应的三氟化苯。本文报道了一系列杂芳基溴化物与 (phen)CuCF 3和 (phen)CuCF 2 CF 3的全氟烷基化。温和的反应条件允许该过程耐受许多常见的官能团。使用 (phen)CuCF 2 CF 3 进行全氟乙基化的产率比使用 (phen)CuCF 3 进行三氟甲基化的产率略高，创建了一种生成氟代烷基杂芳烃的方法，这些杂芳烃不易从三氟乙酸衍生物中获得。
• Substituted Oxopyridine Derivatives and Use Thereof in the Treatment of Cardiovascular Disorders
  申请人：BAYER PHARMA AKTIENGESELLSCHAFT

  公开号：US20160052884A1

  公开（公告）日：2016-02-25

  The invention relates to substituted oxopyridine derivatives and to processes for their preparation, and also to their use for preparing medicaments for the treatment and/or prophylaxis of diseases, in particular cardiovascular disorders, preferably thrombotic or thromboembolic disorders, and oedemas, and also ophthalmic disorders.

  这项发明涉及替代的氧代吡啶衍生物及其制备方法，以及它们用于制备用于治疗和/或预防疾病的药物，特别是心血管疾病，优选是血栓性或血栓栓塞性疾病、水肿以及眼科疾病。
• Merging Visible-Light Photocatalysis and Transition-Metal Catalysis in the Copper-Catalyzed Trifluoromethylation of Boronic Acids with CF₃I
  作者：Yingda Ye、Melanie S. Sanford

  DOI：10.1021/ja301553c

  日期：2012.6.6

  This communication describes the development of a mild method for the cross-coupling of arylboronic acids with CF(3)I via the merger of photoredox and Cu catalysis. This method has been applied to the trifluoromethylation of electronically diverse aromatic and heteroaromatic substrates and tolerates many common functional groups.

  该通讯描述了一种通过光氧化还原和铜催化合并芳基硼酸与 CF(3)I 交叉偶联的温和方法的开发。该方法已应用于电子多样化的芳香族和杂芳香族底物的三氟甲基化，并且可以耐受许多常见的官能团。