5-(4,4,5,5-四甲基-1,3,2-二氧硼烷-2-基)-1-苯并呋喃 | 519054-55-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 中文名称: 5-(4,4,5,5-四甲基-1,3,2-二氧硼烷-2-基)-1-苯并呋喃
• 中文别名: 2,3-二氢-1-苯并呋喃-5-吡哪醇硼酸酯；苯并呋喃-5-硼酸频呐酯；5-(4,4,5,5-四甲基-1,3,2-二氧杂环戊硼烷-2-基)-1-苯并呋喃；苯并呋喃-5-硼酸频哪醇酯
• 英文名称: 2-(benzofuran-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• 英文别名: 2-(1-benzofuran-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• CAS: 519054-55-8
• 化学式: C₁₄H₁₇BO₃
• mdl: MFCD04115374
• 分子量: 244.098
• InChiKey: ZQCCCOMKYKVFFN-UHFFFAOYSA-N

物化性质

• 熔点：
  72 °C
• 沸点：
  340.0±15.0 °C(Predicted)
• 密度：
  1.10±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.18
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.428
• 拓扑面积：
  31.6
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 危险品标志：
  Xi
• 危险类别码：
  R36/37/38
• 海关编码：
  2934999090
• 安全说明：
  S26,S37/39
• 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

SDS

Name:	5-(4 4 5 5-Tetramethyl-1 3 2-dioxaborolan-2-yl)-1-benzofuran Material Safety Data Sheet
Synonym:	None Known
CAS:	519054-55-8

Section 1 - Chemical Product MSDS Name:5-(4 4 5 5-Tetramethyl-1 3 2-dioxaborolan-2-yl)-1-benzofuran Material Safety Data Sheet
Synonym:None Known

---

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
519054-55-8	5-(4,4,5,5-Tetramethyl-1,3,2-dioxaboro	97+	unlisted

Hazard Symbols: XI
Risk Phrases: 36/37/38

---

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye:
Causes eye irritation. May cause chemical conjunctivitis.
Skin:
Causes skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
Inhalation:
Causes respiratory tract irritation. May be harmful if inhaled.
Chronic:
No information found.

---

Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

---

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or appropriate foam.

---

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

---

Section 7 - HANDLING and STORAGE
Handling:
Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store under an inert atmosphere.

---

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 519054-55-8: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

---

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Solid
Color: pale-yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 90-120 deg C@ 0.mmHg
Freezing/Melting Point: 63-66 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C14H17BO3
Molecular Weight: 244

---

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, borane, oxides of borane.
Hazardous Polymerization: Has not been reported.

---

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 519054-55-8 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-benzofuran - Not listed by ACGIH, IARC, or NTP.

---

Section 12 - ECOLOGICAL INFORMATION

---

Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

---

Section 14 - TRANSPORT INFORMATION

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

---

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 6 Keep under nitrogen.
S 23 Do not inhale gas/fumes/vapour/spray.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
WGK (Water Danger/Protection)
CAS# 519054-55-8: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 519054-55-8 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 519054-55-8 is not listed on the TSCA inventory.
It is for research and development use only.

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  5-(4,4,5,5-四甲基-1,3,2-二氧硼烷-2-基)-1-苯并呋喃 在 四(三苯基膦)钯 、 potassium carbonate 作用下， 以55%的产率得到5-(2-nitrophenyl)benzofuran
  参考文献：
  名称：

  新規な化合物及びこれを含む有機電界発光素子

  摘要：

  这项发明涉及新化合物以及包含这些化合物的有机电致发光器件，该发明涉及的化合物可通过用于有机电致发光器件的有机物层，最好是发光层，来提高有机电致发光器件的发光效率、驱动电压和寿命等。【选择图】无

  公开号：

  JP2015527347A
• 作为产物：
  描述：

  在 吡啶 、 2,6-二叔丁基-4-甲基苯酚 、 potassium carbonate 、 2-(4,5-二氢-4,4-二甲基-2-恶唑基)吡啶 、 四(3,5-二(三氟甲基)苯基)硼酸钠 、 三[3,4-双(三氟甲基)苯基]膦 、 palladium dichloride 作用下， 以 二氯甲烷 、 1,2-二氯乙烷 为溶剂， 反应 12.0h， 生成 5-(4,4,5,5-四甲基-1,3,2-二氧硼烷-2-基)-1-苯并呋喃
  参考文献：
  名称：

  通过配体促进的CC键活化来转化芳基酮。

  摘要：

  芳族亲电试剂（芳基卤化物，芳基醚，芳基酸，芳基腈等）与亲核试剂的偶联是合成芳基化合物的核心方法。由于芳基酮的丰度，通过碳-碳键活化以类似方式进行芳基酮的转化可大大扩展合成芳基化合物的工具箱。这种方法的探索性研究通常基于环应变释放和螯合辅助引发的碳-碳裂解，并且产物也仅限于特定的结构基序。在这里，我们报告了一种配体促进β-碳消除的策略，以激活碳-碳键，这导致芳基酮发生一系列转化，从而生成有用的芳基硼酸酯，以及联芳基，芳基腈和芳基烯烃。吡啶-恶唑啉配体的使用对于这种催化转化至关重要。据报道，通过简单的一锅操作，芳基酮的克级硼酸酯化反应。该策略的潜在效用还通过丙磺舒，阿达帕林和脱氧雌酮，芬芳类香囊素和载脂蛋白的天然产物的晚期药物分子多样化而得到证明。

  DOI：

  10.1002/anie.202006740

文献信息

• A Monophosphine Ligand Derived from Anthracene Photodimer: Synthetic Applications for Palladium-Catalyzed Coupling Reactions
  作者：Xin Wang、Wei-Gang Liu、Chen-Ho Tung、Li-Zhu Wu、Huan Cong

  DOI：10.1021/acs.orglett.9b02414

  日期：2019.10.18

  an air-stable dianthracenyl monophosphine ligand (diAnthPhos) which can be prepared in two steps from commercially available anthracene derivatives. The ligand exhibits excellent efficiency for palladium-catalyzed coupling reactions. In particular, Miyaura borylation of heterocycle-containing electrophiles can be facilitated employing the diAnthPhos ligand with a broad substrate scope and low catalyst

  在这里，我们提出了一种空气稳定的二蒽基单膦配体（diAnthPhos），它可以由市售的蒽衍生物分两步制备。该配体对于钯催化的偶联反应表现出优异的效率。特别地，使用具有宽底物范围和低催化剂负载的diAnthPhos配体可以促进含杂环亲电试剂的宫浦硼化。通过对含杂芳基的底物进行一锅Miyaura硼化/ Suzuki偶联方案，进一步证明了新配体的宝贵合成效用。
• Visible Light-Induced Borylation of C–O, C–N, and C–X Bonds
  作者：Shengfei Jin、Hang. T. Dang、Graham C. Haug、Ru He、Viet D. Nguyen、Vu T. Nguyen、Hadi D. Arman、Kirk S. Schanze、Oleg V. Larionov

  DOI：10.1021/jacs.9b12519

  日期：2020.1.22

  photocatalytic borylation method that can effect borylation of a wide range of substrates, including strong C‒O bonds, remains elusive. Herein, we report a general, metal-free visible light-induced photocatalytic borylation platform that enables borylation of electron rich derivatives of phenols and anilines, chloroarenes, as well as other haloarenes. The reac-tion exhibits excellent functional group

  硼酸是中心重要的功能基序和合成前体。可见光诱导的硼酸化可以提供结构多样化的硼酸盐，但一种广泛有效的光催化硼酸化方法可以影响包括强 C-O 键在内的多种底物的硼化，仍然难以实现。在此，我们报告了一种通用的、无金属的可见光诱导光催化硼化平台，该平台能够对苯酚和苯胺、氯芳烃以及其他卤代芳烃的富电子衍生物进行硼化。该反应表现出优异的官能团耐受性，正如一系列结构复杂底物的硼化反应所证明的那样。值得注意的是，该反应是由吩噻嗪催化的，这是一种简单的有机光催化剂，MW< 200通过质子耦合电子转移机制介导了以前无法实现的可见光诱导的苯酚衍生物单电子还原，还原电位为~-3 V vs SCE。机理研究指出了光催化剂-碱相互作用的关键作用。
• [EN] AZABENZIMIDAZOLES AS FATTY ACID SYNTHASE INHIBITORS<br/>[FR] AZABENZAMIDAZOLES COMME INHIBITEURS D'ACIDE GRAS SYNTHASE
  申请人：GLAXOSMITHKLINE LLC

  公开号：WO2011066211A1

  公开（公告）日：2011-06-03

  This invention relates to the use of azabenzimidazole derivatives for the modulation, notably the inhibition of the activity or function of fatty acid synthase (FAS). Suitably, the present invention relates to the use of azabenzimidazoles in the treatment of cancer.

  这项发明涉及使用吡唑苯并咪唑衍生物来调节，特别是抑制脂肪酸合成酶（FAS）的活性或功能。适当地，本发明涉及在癌症治疗中使用吡唑苯并咪唑。
• IMIDAZOLIN-5-ONE DERIVATIVE USEFUL AS FASN INHIBITORS FOR THE TREATMENT OF CANCER
  申请人：Connolly Peter J.

  公开号：US20150099730A1

  公开（公告）日：2015-04-09

  Disclosed are compounds, compositions and methods for treating various diseases, syndromes, conditions and disorders, including those mediated by inhibition of fatty acid synthase (FASN) enzyme, such as, cancer, obesity or related discorders, and liver related disorders. Such compounds are represented by formula (I) as follows: wherein L 1 , a, b, m, n, R 1 , R 2 , R 3 , R 4 , and R 5 are defined herein.

  公开了用于治疗多种疾病、综合征、状况和失调的化合物、组合物和方法，包括那些通过抑制脂肪酸合酶（FASN）酶介导的疾病，如癌症、肥胖或相关失调以及与肝脏相关的失调。这些化合物由公式（I）表示如下： 其中L1、a、b、m、n、R1、R2、R3、R4和R5在此定义。
• Merging Halogen-Atom Transfer (XAT) and Copper Catalysis for the Modular Suzuki–Miyaura-Type Cross-Coupling of Alkyl Iodides and Organoborons
  作者：Zhenhua Zhang、Bartosz Górski、Daniele Leonori

  DOI：10.1021/jacs.1c12649

  日期：2022.2.2

  Suzuki–Miyaura-type cross-couplings between alkyl iodides and aryl organoborons. This process requires a copper catalyst but, in contrast with previous approaches based on palladium and nickel systems, does not utilizes the metal for the activation of the alkyl electrophile. Instead, this strategy exploits the halogen-atom-transfer ability of α-aminoalkyl radicals to convert secondary alkyl iodides into the

  我们在这里报告了一种机制上不同的方法来实现烷基碘和芳基有机硼之间的 Suzuki-Miyaura 型交叉偶联。该过程需要铜催化剂，但与以前基于钯和镍系统的方法相比，它不使用金属来活化烷基亲电试剂。相反，该策略利用 α-氨基烷基自由基的卤素原子转移能力将仲烷基碘转化为相应的烷基自由基，然后与芳基、乙烯基、炔基、苄基和硼酸烯丙酯物质偶联。这些新颖的偶联反应具有简单的设置和条件（室温下 1 小时），并有助于获得制药行业所针对的特权基序。