1-(4-溴苯基)-3,5-二甲基-1H-吡唑 | 62546-27-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 1-(4-溴苯基)-3,5-二甲基-1H-吡唑
• 英文名称: 1-(4-bromophenyl)-3,5-dimethyl-1H-pyrazole
• 英文别名: 1-(4-bromophenyl)-3,5-dimethylpyrazole
• CAS: 62546-27-4
• 化学式: C₁₁H₁₁BrN₂
• mdl: MFCD09817558
• 分子量: 251.126
• InChiKey: ATCMNDCOEJOOSF-UHFFFAOYSA-N

物化性质

• 沸点：
  316.9±30.0 °C(Predicted)
• 密度：
  1.40±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.181
• 拓扑面积：
  17.8
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  2933199090
• 危险性防范说明：
  P261,P264,P270,P271,P280,P301+P312,P302+P352,P304+P340,P305+P351+P338,P330,P332+P313,P337+P313,P362,P403+P233,P405,P501
• 危险性描述：
  H302,H315,H319,H335

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 1-(4-Bromophenyl)-3,5-dimethylpyrazole
Synonyms: 1-(4-Bromophenyl)-3,5-dimethyl-1H-pyrazole

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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-(4-Bromophenyl)-3,5-dimethylpyrazole
CAS number: 62546-27-4

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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: C11H11BrN2
Molecular weight: 251.1

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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 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：

  1-(4-溴苯基)-3,5-二甲基-1H-吡唑 在 四(三苯基膦)钯 三氯氧磷 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 10.0h， 生成 4-(4-formyl-3,5-dimethyl-1H-pyrazol-1-yl)benzonitrile
  参考文献：
  名称：

  [EN] SUBSTITUTED PYRAZOLE DERIVATIVES AND USE THEREOF
  [FR] DÉRIVÉS PYRAZOLE SUBSTITUÉS ET LEUR UTILISATION

  摘要：

  本发明旨在提供由式(I')表示的吡唑衍生物或其盐。

  公开号：

  WO2009119880A1
• 作为产物：
  描述：

  3,5-二甲基吡唑 在 氧气 、 copper diacetate 、 三乙胺 作用下， 以 甲醇 为溶剂， 反应 20.0h， 生成 1-(4-溴苯基)-3,5-二甲基-1H-吡唑
  参考文献：
  名称：

  铜催化芳基硼酸与N-酰基吡唑的C–N交叉偶联

  摘要：

  开发了一种铜催化的芳基硼酸与N-酰基吡唑的CN键形成反应。该方法使用N-乙酰基保护的吡唑代替游离吡唑（NH）作为起始原料。该反应在中性条件下进行，不需要任何碱或配体。反应显示出良好的官能团耐受性。

  DOI：

  10.1016/j.tetlet.2016.06.044

文献信息

• [EN] 4,4A,5,7,8,8A-HEXAPYRIDO[4,3-B][1,4]OXAZIN-3-ONE COMPOUNDS AS MAGL INHIBITORS<br/>[FR] COMPOSÉS 4,4A,5,7,8,8 A-HEXAPYRIDO [4,3-B] [1,4] OXAZIN-3-ONE EN TANT QU'INHIBITEURS DE MAGL
  申请人：HOFFMANN LA ROCHE

  公开号：WO2021048242A1

  公开（公告）日：2021-03-18

  The invention provides new heterocyclic compounds having the general formula (I) wherein A, B, L1, X, m, n, and R1 to R7 are as described herein, compositions including the compounds, processes of manufacturing the compounds and methods of using the compounds as monoacylglycerol lipase (MAGL) inhibitors.

  这项发明提供了具有一般式(I)的新杂环化合物，其中A、B、L1、X、m、n以及R1到R7如本文所述，包括这些化合物的组合物，制造这些化合物的方法以及将这些化合物用作单酰基甘油酶（MAGL）抑制剂的方法。
• Diastereo- and Enantioselective Ruthenium-Catalyzed C-C Coupling of 1-Arylpropynes and Alcohols: Alkynes as Chiral Allylmetal Precursors in Carbonyl <i>anti</i>-(α-Aryl)allylation
  作者：Ming Xiang、Ankan Ghosh、Michael J. Krische

  DOI：10.1021/jacs.0c12242

  日期：2021.2.24

  pronucleophiles in ruthenium-JOSIPHOS-catalyzed anti-diastereo- and enantioselective aldehyde (α-aryl)allylations with primary aliphatic or benzylic alcohol proelectrophiles. This method enables convergent construction of homoallylic sec-phenethyl alcohols bearing tertiary benzylic stereocenters. Both steric and electronic features of aryl sulfonic acid additives were shown to contribute to the efficiency with

  高度易处理的 1-aryl-1-propynes，很容易通过 Sonogashira 偶联获得，在钌-JOSIPHOS 催化的抗非对映和对映选择性醛（α-芳基）烯丙基化与伯脂肪族或苄醇亲电子试剂中用作手性烯丙基金属亲核试剂。该方法能够收敛构建同烯丙基sec-带有叔苄基立体中心的苯乙醇。芳基磺酸添加剂的空间和电子特性均被证明有助于形成更具选择性和生产性的碘化物结合的钌催化剂的效率。正如同位素标记研究所证实的那样，双重催化过程是有效的，其中炔烃到丙二烯异构化之后是丙二烯-羰基通过氢自动转移进行还原偶联。观察到从这两个离散的催化事件中产生的氢化钌的交叉。该方法的实用性通过将选定的反应产物转化为相应的苯乙胺和新木脂素天然产物 (-)-山楂 A-D 的首次全合成来说明。
• Direct N-heterocyclization of hydrazines to access styrylated pyrazoles: synthesis of 1,3,5-trisubstituted pyrazoles and dihydropyrazoles
  作者：Vunnam Venkateswarlu、Jaspreet Kour、K. A. Aravinda Kumar、Praveen Kumar Verma、G. Lakshma Reddy、Yaseen Hussain、Aliya Tabassum、Shilpi Balgotra、Sorav Gupta、Abhinandan D. Hudwekar、Ram A. Vishwakarma、Sanghapal D. Sawant

  DOI：10.1039/c8ra04550j

  日期：——

  microwave-assisted method has been developed for the synthesis of tri-substituted pyrazoles via direct N-heterocyclization of hydrazines with metal-acetylacetonate and -dibenzylideneacetonate without using any base or additives. Most importantly, the synthesis of 1-aryl-5-phenyl-3-styryl-1H-pyrazoles was achieved in a single step using hydrochloride salt of various phenylhydrazines and this is the first

  开发了一种微波辅助合成三取代吡唑的方法，该方法通过肼与金属乙酰丙酮化物和二亚苄基丙酮化物的直接N-杂环化来合成三取代吡唑，无需使用任何碱或添加剂。最重要的是，使用各种苯肼的盐酸盐一步合成了1-芳基-5-苯基-3-苯乙烯基-1H-吡唑，这是直接构建这些分子的第一份报告。反应介质和微波条件对于反应过程中选择性产物的形成起着关键作用。本反应探索了使用金属二酮配合物作为反应底物，提供乙酰丙酮和二亚苄基丙酮部分直接参与与肼的环化，以优异的产率形成相应的吡唑。本方案在最终结构中引入了重要的 N-杂环部分，从药物化学的角度来看，该反应具有巨大的应用，特别是在药物发现的后期修饰策略中。
• Palladium-Catalyzed Trifluoromethylthiolation of Chelation-Assisted C-H Bonds
  作者：Arunachalam Kesavan、Manthena Chaitanya、Pazhamalai Anbarasan

  DOI：10.1002/ejoc.201800451

  日期：2018.7.6

  Palladium‐catalyzed trifluoromethylthiolation of chelation‐assisted C–H bonds has been accomplished by employing a readily accessible electrophilic trifluoromethylthiolating reagent.

  螯合辅助CH键的钯催化三氟甲基硫醇化反应是通过使用易于获得的亲电子三氟甲基硫醇化试剂完成的。
• Efficient Copper-Catalyzed Synthesis of Substituted Pyrazoles at Room Temperature
  作者：Haifeng Wang、Xiangli Sun、Shuangling Zhang、Guanglu Liu、Chunjie Wang、Lili Zhu、Hui Zhang

  DOI：10.1055/s-0037-1610330

  日期：2018.12

  method for the synthesis of pyrazoles through a copper-catalyzed condensation reaction has been developed. The new catalytic system not only maintained a broad substrate scope but was also active under acid-free reaction conditions, overcoming the conventional requirement for an acid-catalyzed system. Furthermore, the copper catalyst enabled this reaction to be performed at room temperature and in a short

  已开发出一种通过铜催化缩合反应合成吡唑的有效方法。新的催化体系不仅保持了广泛的底物范围，而且在无酸反应条件下也具有活性，克服了对酸催化体系的传统要求。此外，铜催化剂使该反应能够在室温下和较短的反应时间内进行。