5-(乙氧基羰基)呋喃-2-硼酸频那醇酯 | 1073338-92-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 呋喃
• 中文名称: 5-(乙氧基羰基)呋喃-2-硼酸频那醇酯
• 中文别名: 5-（乙氧羰基）呋喃-2-硼酸频哪醇酯
• 英文名称: ethyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan-2-carboxylate
• CAS: 1073338-92-7
• 化学式: C₁₃H₁₉BO₅
• 分子量: 266.102
• InChiKey: UMMKKZJPSPIDGN-UHFFFAOYSA-N

物化性质

• 沸点：
  364.0±27.0 °C(Predicted)
• 密度：
  1.11±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.76
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  57.9
• 氢给体数：
  0
• 氢受体数：
  5

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: 5-(Ethoxycarbonyl)furan-2-boronic acid, pinacol ester
Synonyms: Ethyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan-2-carboxylate

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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: 5-(Ethoxycarbonyl)furan-2-boronic acid, pinacol ester
CAS number: 1073338-92-7

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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, under −20◦C.
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: C13H19BO5
Molecular weight: 266.1

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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.

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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：

  5-(乙氧基羰基)呋喃-2-硼酸频那醇酯 、 2-(2-chloro-5-(trimethylsilyl)thiophen-3-yl)-4-(trifluoromethyl)benzonitrile 在 tris-(dibenzylideneacetone)dipalladium(0) 、 tripotassium phosphate "n" hydrate 、 2-二环己基磷-2,4,6-三异丙基联苯 作用下， 以 叔丁醇 为溶剂， 反应 6.0h， 以39%的产率得到ethyl 5-(3-(2-cyano-5-(trifluoromethyl)phenyl)-5-(trimethylsilyl)thiophen-2-yl)furan-2-carboxylate
  参考文献：
  名称：

  Divergent Synthesis of 2,3,5-Substituted Thiophenes by C-H Activation/Borylation/Suzuki Coupling

  摘要：

  C-H activation/borylation has been married with Suzuki coupling to prepare DuP 697 (1) and analogs that would be otherwise difficult to obtain via the traditional synthetic route to 1.

  DOI：

  10.3987/com-09-s(s)135
• 作为产物：
  描述：

  糠酸（呋喃甲酸） 在 5-甲基-2-(噻吩-3-基)吡啶 、 (1,5-cyclooctadiene)(methoxy)iridium(I) dimer 、 硫酸 作用下， 以 四氢呋喃 为溶剂， 反应 24.03h， 生成 5-(乙氧基羰基)呋喃-2-硼酸频那醇酯
  参考文献：
  名称：

  用于定向 C(sp2)–H 和 C(sp3)–H 硼酸化不同类型底物的显着高效铱催化剂

  摘要：

  在这里，我们描述了一类新的 C-H 硼化催化剂的发现及其在芳族、杂芳族和脂肪族系统的区域选择性 C-H 硼化中的应用。新催化剂具有 Ir-C(噻吩基) 或 Ir-C(呋喃基) 阴离子配体，而不是标准 C-H 硼化条件中使用的二胺型中性螯合配体。据报道，这些新发现的催化剂的使用对不同种类的芳烃底物显示出优异的反应性和邻位选择性，并具有高分离产率。此外，该催化剂被证明对大量脂肪族底物的选择性 C(sp 3)–H 键硼化。杂环分子利用 C-H 键固有的高反应性选择性地硼化。已经使用相同的催化剂描述了许多后期 C-H 功能化。此外，我们表明其中一种催化剂甚至可以在露天用于 C(sp 2 )-H 和 C(sp 3 )-H 硼酸化，从而使该方法更加通用。初步的机理研究表明，活性催化中间体是 Ir(bis)boryl 络合物，连接的配体作为双齿配体。总的来说，这项研究强调了新型 C-H 硼酸化催化剂的发现，这些催化剂应该在

  DOI：

  10.1021/jacs.0c13415

文献信息

• Noncovalent Interactions in Ir-Catalyzed C–H Activation: L-Shaped Ligand for Para-Selective Borylation of Aromatic Esters
  作者：Md Emdadul Hoque、Ranjana Bisht、Chabush Haldar、Buddhadeb Chattopadhyay

  DOI：10.1021/jacs.7b04490

  日期：2017.6.14

  An efficient strategy for the para-selective borylation of aromatic esters is described. For achieving high para-selectivity, a new catalytic system has been developed modifying the core structure of the bipyridine. It has been proposed that the L-shaped ligand is essential to recognize the functionality of the oxygen atom of the ester carbonyl group via noncovalent interaction, which provides an unprecedented

  描述了一种用于芳族酯的对位选择性硼化的有效策略。为了获得高的对位选择性，已经开发了一种新的催化体系，该体系改变了联吡啶的核心结构。有人提出，L型配体对于通过非共价相互作用识别酯羰基的氧原子的功能至关重要，这为超选择性C–H活化/硼化提供了空前的控制因素。
• 一种高效催化五元杂环选择性发生硼化反应的方法
  申请人：台州学院

  公开号：CN111039967A

  公开（公告）日：2020-04-21

  本发明涉及一种高效催化五元杂环选择性发生硼化反应的方法。顺利实现以廉价的钌金属的络合物为催化剂，在温和条件下即可方便地催化呋喃、噻吩衍生物与廉价易得的有机硼试剂发生选择性硼化反应来制备杂环硼酸酯产物。与已报道方法相比，该方法具备反应选择性专一、催化剂用量低、操作便捷、不需要添加反应溶剂等明显优势，为杂环硼酸酯产物的实验室制备或工业生产提供了一种高效、高选择性的反应策略。
• Remarkably Efficient Iridium Catalysts for Directed C(sp²)–H and C(sp³)–H Borylation of Diverse Classes of Substrates
  作者：Md Emdadul Hoque、Mirja Md Mahamudul Hassan、Buddhadeb Chattopadhyay

  DOI：10.1021/jacs.0c13415

  日期：2021.4.7

  aliphatic substrates for selective C(sp3)–H bond borylations. Heterocyclic molecules are selectively borylated using the inherently elevated reactivity of the C–H bonds. A number of late-stage C–H functionalization have been described using the same catalysts. Furthermore, we show that one of the catalysts could be used even in open air for the C(sp2)–H and C(sp3)–H borylations enabling the method more general

  在这里，我们描述了一类新的 C-H 硼化催化剂的发现及其在芳族、杂芳族和脂肪族系统的区域选择性 C-H 硼化中的应用。新催化剂具有 Ir-C(噻吩基) 或 Ir-C(呋喃基) 阴离子配体，而不是标准 C-H 硼化条件中使用的二胺型中性螯合配体。据报道，这些新发现的催化剂的使用对不同种类的芳烃底物显示出优异的反应性和邻位选择性，并具有高分离产率。此外，该催化剂被证明对大量脂肪族底物的选择性 C(sp 3)–H 键硼化。杂环分子利用 C-H 键固有的高反应性选择性地硼化。已经使用相同的催化剂描述了许多后期 C-H 功能化。此外，我们表明其中一种催化剂甚至可以在露天用于 C(sp 2 )-H 和 C(sp 3 )-H 硼酸化，从而使该方法更加通用。初步的机理研究表明，活性催化中间体是 Ir(bis)boryl 络合物，连接的配体作为双齿配体。总的来说，这项研究强调了新型 C-H 硼酸化催化剂的发现，这些催化剂应该在
• Divergent Synthesis of 2,3,5-Substituted Thiophenes by C-H Activation/Borylation/Suzuki Coupling
  作者：Robert E. Maleczka、Milton R. Smith、Venkata A. Kallepalli、Luis Sánchez、Hao Li、Nathan J. Gesmundo

  DOI：10.3987/com-09-s(s)135

  日期：——

  C-H activation/borylation has been married with Suzuki coupling to prepare DuP 697 (1) and analogs that would be otherwise difficult to obtain via the traditional synthetic route to 1.