2-甲基-4-硝基苯硼酸频哪醇酯 | 883715-40-0

• 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-甲基-4-硝基苯硼酸频哪醇酯
• 中文别名: 4,4,5,5-四甲基-2-(2-甲基-4-硝基苯基)-1,3,2-二噁硼烷
• 英文名称: 4,4,5,5-tetramethyl-2-(2-methyl-4-nitrophenyl)-1,3,2-dioxaborolane
• CAS: 883715-40-0
• 化学式: C₁₃H₁₈BNO₄
• 分子量: 263.101
• InChiKey: VXWKXTVJLVEIIY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  64.3
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 海关编码：
  2934999090

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2-methyl-4-nitrophenylboronic acid, pinacol ester
Synonyms: 4,4,5,5-Tetramethyl-2-(2-methyl-4-nitrophenyl)-1,3,2-dioxaborolane

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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-methyl-4-nitrophenylboronic acid, pinacol ester
CAS number: 883715-40-0

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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, refrigerated.
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: C13H18BNO4
Molecular weight: 263.1

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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.

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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-甲基-4-硝基苯硼酸频哪醇酯 在 N-溴代丁二酰亚胺(NBS) 、 偶氮二异丁腈 、 水 、 双氧水 作用下， 以 乙腈 为溶剂， 反应 2.0h， 生成 频哪醇
  参考文献：
  名称：

  取代基对芳基硼酸酯前体的氧化甲基醌氧化生成的影响

  摘要：

  一系列含有不同芳族取代基和各种苄基离去基团（BR或N-芳基硼酸酯的+我3溴- ）已被合成。已经研究了取代基对其与H 2 O 2的反应性和甲基化醌（QM）形成的影响。NMR光谱和乙基乙烯基醚（EVE）捕获实验分别用于确定反应机理和QM形成。在硼酸酯的氧化裂解过程中不会产生QM，而是在生理条件下通过苯酚产物的后续转化产生的。吸电子取代基（例如芳族F，NO 2或苄基N ）促进了氧化脱硼+我3溴- ，而给电子取代基或更好的离去基团有利于QM产生。包含芳香族CH 3或OMe基团或良好离去基团（Br）的化合物可在生理条件下有效产生QM。最后，通过使用哈米特图建立了芳基硼酸酯的结构与活性之间的定量关系。现在可以预测地调整芳基硼酸/酯的反应性以及抑制或促进QM的形成。此调整很重要，因为某些应用程序可能会受益，而其他应用程序可能会受到QM生成的限制。

  DOI：

  10.1002/chem.201300539
• 作为产物：
  描述：

  联硼酸频那醇酯 、 4-硝基-2-甲苯胺 在 氢溴酸 、 sodium nitrite 、 sodium acetate 作用下， 以 水 、 甲醇 为溶剂， 反应 1.5h， 以78%的产率得到2-甲基-4-硝基苯硼酸频哪醇酯
  参考文献：
  名称：

  氨基和羟甲基苯并恶唑硼酸酯的合成：进一步功能化的著名支架

  摘要：

  本文描述了一种短，简单而有效的合成氨基和羟甲基取代的苯并氧杂硼酸的方法的开发。关键步骤是通过苯胺的硼化使硼早期掺入。然后将形成的硼酸盐分两步精加工成最终产品，收率很高。

  DOI：

  10.1002/ejoc.201900013

文献信息

• The <i>ortho</i>-substituent on 2,4-bis(trifluoromethyl)phenylboronic acid catalyzed dehydrative condensation between carboxylic acids and amines
  作者：Ke Wang、Yanhui Lu、Kazuaki Ishihara

  DOI：10.1039/c8cc02558d

  日期：——

  2,4-Bis(trifluoromethyl)phenylboronic acid is a highly effective catalyst for dehydrative amidation between carboxylic acids and amines. Mechanistic studies suggest that a 2 : 2 mixed anhydride is expected to be the only active species, and the ortho-substituent of boronic acid plays a key role in preventing the coordination of amines to the boron atom of the active species, thus accelerating the amidation

  2,4-双（三氟甲基）苯基硼酸是用于羧酸和胺之间的脱水酰胺化的高效催化剂。机理研究表明，预计2：2混合酸酐是唯一的活性物质，硼酸的原取代基在防止胺与活性物质的硼原子配位方面起关键作用，从而促进酰胺化。该催化剂可用于α-二肽合成。
• Synthesis of Trimethylstannyl Arylboronate Compounds by Sandmeyer-Type Transformations and Their Applications in Chemoselective Cross-Coupling Reactions
  作者：Di Qiu、Shuai Wang、Shengbo Tang、He Meng、Liang Jin、Fanyang Mo、Yan Zhang、Jianbo Wang

  DOI：10.1021/jo402618r

  日期：2014.3.7

  A synthetic method based on Sandmeyer-type reactions to access both tin- and boron-substituted arenes from nitroaniline derivatives is described. This transformation can be applied to the synthesis of a series of functionalized trimethylstannyl arylboronates. In addition, the chemoselective reaction of the Stille and Suzuki–Miyaura cross-coupling reactions is explored, and a series of m- and p-terphenyl

  描述了一种基于Sandmeyer型反应的合成方法，可从硝基苯胺衍生物中获得锡和硼取代的芳烃。该转化可用于合成一系列官能化的三甲基锡烷基芳基硼酸酯。此外，还探索了Stille和Suzuki-Miyaura交叉偶联反应的化学选择性反应，并通过进行连续的一锅法式Stille和Suzuki-Miyaura交叉偶联反应合成了一系列m-和对-三苯基衍生物。
• [EN] SULFONAMIDE COMPOUNDS USEFUL AS CYP17 INHIBITORS<br/>[FR] COMPOSÉS DE SULFONAMIDE UTILES EN TANT QU'INHIBITEURS DE CYP17
  申请人：BRISTOL MYERS SQUIBB CO

  公开号：WO2012015723A1

  公开（公告）日：2012-02-02

  Disclosed are sulfonamide compounds of Formula (I): or stereoisomers, N-oxides, prodrugs, or pharmaceutically acceptable salts thereof, wherein ring A, R1, R2, R3, R4 and R5 are defined herein. Also disclosed are methods of using such compounds in the treatment of conditions related to CYP17 enzyme, such as cancer, and pharmaceutical compositions comprising such compounds.

  公开的是化合物的磺胺类化合物的结构式（I）：或其立体异构体、N-氧化物、前药或其药学上可接受的盐，其中环A、R1、R2、R3、R4和R5在此处定义。还公开了使用这类化合物治疗与CYP17酶相关的疾病的方法，如癌症，并包括这类化合物的药物组合物。
• [EN] HETEROAROMATIC COMPOUNDS AND THEIR USE AS DOPAMINE D1 LIGANDS<br/>[FR] COMPOSÉS HÉTÉROAROMATIQUES ET LEUR UTILISATION COMME LIGANDS DE LA DOPAMINE D1
  申请人：PFIZER

  公开号：WO2014072881A1

  公开（公告）日：2014-05-15

  The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides thereof; processes and intermediates for preparation of; and compositions and uses thereof. The present invention further provides D1 agonists with reduced D1R desensitization, D1 agonists with a reduced β- arrestin recruitment activity relative to Dopamine, D1 agonists interacting significantly with the Ser188 but not significantly with the Ser202 of a D1R when binding to the D1R, D1 agonists interacting less strongly with the Asp103 and interacting less strongly with the Ser198 of a D1R when binding to the D1R, and their uses.

  本发明部分提供了化合物I的公式：及其药学上可接受的盐和N-氧化物；制备的过程和中间体；以及其组合物和用途。本发明进一步提供了具有减少D1R耐受性的D1激动剂，相对于多巴胺具有减少β-阿雷斯汀招募活性的D1激动剂，当结合到D1R时与D1R的Ser188显著相互作用但与Ser202的相互作用不显著的D1激动剂，当结合到D1R时与D1R的Asp103相互作用较弱并且与Ser198相互作用较弱的D1激动剂，以及它们的用途。
• [EN] PERK INHIBITORS FOR TREATING VIRAL INFECTIONS<br/>[FR] INHIBITEURS DE PERK POUR LE TRAITEMENT D'INFECTIONS VIRALES
  申请人：HIBERCELL INC

  公开号：WO2021231782A1

  公开（公告）日：2021-11-18

  Provided herein are methods for treating a viral infection in a patient, comprising administering to said patient a therapeutically effective amount of a PERK inhibitor selected from a compound having the structure (I):

  本文提供了一种治疗患者病毒感染的方法，包括向该患者施用从具有结构（I）的化合物中选择的PERK抑制剂的治疗有效剂量。