5-(4,4,5-三甲基-[1,3,2]二氧硼戊环-2-基)-噻吩-2-甲酸甲酯 | 916138-13-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 中文名称: 5-(4,4,5-三甲基-[1,3,2]二氧硼戊环-2-基)-噻吩-2-甲酸甲酯
• 中文别名: 5-甲氧基羰基噻吩-2-硼酸频那醇酯
• 英文名称: methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxylate
• CAS: 916138-13-1
• 化学式: C₁₂H₁₇BO₄S
• 分子量: 268.142
• InChiKey: LMWIOYXSRDMVLD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.83
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  73
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 海关编码：
  2934999090

SDS

Material Safety Data Sheet

---

Section 1. Identification of the substance
Product Name: 5-(Methoxycarbonyl)thiophene-2-boronic acid, pinacol ester
Synonyms: Methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxylate

---

Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

---

Section 3. Composition/information on ingredients.
Ingredient name: 5-(Methoxycarbonyl)thiophene-2-boronic acid, pinacol ester
CAS number: 916138-13-1

---

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.

---

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.

---

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.

---

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:

---

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.

---

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: C12H17BO4S
Molecular weight: 268.1

---

Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, sulfur oxides.

---

Section 11. Toxicological information
No data.

---

Section 12. Ecological information
No data.

---

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.

---

Section 14. Transportation information
Non-harzardous for air and ground transportation.

---

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.

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  5-(4,4,5-三甲基-[1,3,2]二氧硼戊环-2-基)-噻吩-2-甲酸甲酯 在 potassium fluoride 、 1,2,3,4,5-五苯基-1′-(二叔丁基膦)二茂铁 、 palladium diacetate 、 sodium hydride 作用下， 以 水 、 甲苯 、 mineral oil 为溶剂， 反应 21.0h， 生成 5-(6-methoxypyridazin-4-yl)thiophene-2-carboxylic acid
  参考文献：
  名称：

  [EN] 3-OXO-TETRAHYDRO-FURO[3,2-B]PYRROL-4(5H)-YL) DERIVATIVES II
  [FR] DÉRIVÉS II DU 3-OXO-TÉTRAHYDRO-FURO[3,2-B]PYRROL-4(5H)-YLE

  摘要：

  这项发明涉及作为双重CatS/K抑制剂的酰胺氧代四氢-2H-呋喃[3.2-b]吡咯-4(5H)-基)衍生物，这些衍生物表现出明显的CatK抑制作用，以及含有这些化合物的药物组合物，以及这些化合物用于治疗和/或预防疼痛和其他疾病和/或紊乱。

  公开号：

  WO2015161924A1
• 作为产物：
  描述：

  5-溴-2-羧基噻吩 在 氯化亚砜 、 1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 、 potassium acetate 作用下， 以 1,4-二氧六环 为溶剂， 反应 3.0h， 生成 5-(4,4,5-三甲基-[1,3,2]二氧硼戊环-2-基)-噻吩-2-甲酸甲酯
  参考文献：
  名称：

  五元杂环类衍生物及其制备方法和其在医药上的用途

  摘要：

  本发明提供了一种通式(I)所示的五元杂环类衍生物或其药学上可接受的盐、及其制备方法，以及它们作为治疗剂，特别是作为选择性转染期间重排(RET)激酶抑制剂的用途。其中通式(I)中的A，B，C，D，E，X，R1，R2，R3的定义与说明书中的定义相同。

  公开号：

  CN110294745B

文献信息

• [EN] 3-OXO-TETRAHYDRO-FURO[3,2-B]PYRROL-4(5H)-YL) DERIVATIVES I<br/>[FR] DÉRIVÉS 3-OXO-TÉTRAHYDRO-FURO [3,2-B] PYRROL -4 (5H)-YL)
  申请人：GRUENENTHAL GMBH

  公开号：WO2015161928A1

  公开（公告）日：2015-10-29

  The invention relates to amidic oxotetrahydro-2H-furo[3.2-b]pyrrol-4(5H)-yl) derivatives as dual CatS/K inhibitors, to pharmaceutical compositions containing these compounds and also to these compounds for use in the treatment and/or prophylaxis of pain and further diseases and/or disorders.

  这项发明涉及作为双重CatS/K抑制剂的酰胺氧代四氢-2H-呋喃[3.2-b]吡咯-4(5H)-基)衍生物，以及含有这些化合物的药物组合物，还涉及这些化合物用于治疗和/或预防疼痛以及其他疾病和/或紊乱。
• The Structural Basis for Optimal Performance of Oligothiophene-Based Fluorescent Amyloid Ligands: Conformational Flexibility is Essential for Spectral Assignment of a Diversity of Protein Aggregates
  作者：Therése Klingstedt、Hamid Shirani、K. O. Andreas Åslund、Nigel J. Cairns、Christina J. Sigurdson、Michel Goedert、K. Peter R. Nilsson

  DOI：10.1002/chem.201301463

  日期：2013.7.29

  substituents along the thiophene backbone. In addition, two asymmetric tetrameric ligands were generated. Overall, the results from this study identified conformational freedom and extended conjugation of the conjugated backbone as crucial determinants for obtaining superior thiophene‐based optical ligands for sensitive detection and spectral assignment of disease‐associated protein aggregates.

  蛋白质错误折叠疾病的特征是蛋白质聚集体的沉积，用于这些疾病相关结构的分子表征的光学配体对于了解它们在疾病发病机制中的潜在作用非常重要。事实证明，与硫黄素 T 和刚果红等传统配体相比，发光共轭低聚噻吩 (LCO) 可用于光学识别更广泛的疾病相关蛋白聚集体子集。在此，研究了实现能够检测非硫代黄素亲和性 Aβ 聚集体或非亲刚果朊病毒聚集体以及光谱区分 Aβ 和 tau 聚集体的 LCO 的分子要求。通过以下方式对阴离子五聚体 LCO 进行化学工程：1) 用硒吩或亚苯基部分取代噻吩单元，或 2) 沿着噻吩主链交替阴离子取代基。此外，还生成了两个不对称四聚体配体。总的来说，这项研究的结果确定了构象自由度和缀合主链的扩展缀合是获得优质噻吩光学配体以敏感检测和疾病相关蛋白质聚集体光谱分配的关键决定因素。
• Iridium-catalyzed borylation of thiophenes: versatile, synthetic elaboration founded on selective C–H functionalization
  作者：Ghayoor A. Chotana、Venkata A. Kallepalli、Robert E. Maleczka、Milton R. Smith

  DOI：10.1016/j.tet.2008.02.111

  日期：2008.6

  various substituted thiophenes to synthesize poly-functionalized thiophenes in good to excellent yields. Apart from common functionalities compatible with iridium-catalyzed borylations, additional functional group tolerance to acyl (COMe), and trimethylsilyl (TMS) groups was also observed. High regioselectivities were observed in borylation of 3-and 2,5-di-substituted thiophenes. Electrophilic aromatic

  铱催化的硼酸化反应已应用于各种取代的噻吩以合成多官能化的噻吩，收率非常好。除了与铱催化的硼化反应兼容的常见官能团外，还观察到了对酰基 (COMe) 和三甲基甲硅烷基 (TMS) 基团的额外官能团耐受性。在 3-和 2,5-二取代噻吩的硼酸化中观察到高区域选择性。噻吩硼酸酯上的亲电芳族 CH/C-Si 溴化显示在不破坏 CB 键的情况下发生，并且一锅 CH 硼酸化/Suzuki-Miyaura 交叉偶联已在 2-和 3-硼酸化噻吩上完成。
• 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。
• Aerobic Visible-Light-Driven Borylation of Heteroarenes in a Gel Nanoreactor
  作者：Jorge C. Herrera-Luna、David Díaz Díaz、Alex Abramov、Susana Encinas、M. Consuelo Jiménez、Raúl Pérez-Ruiz

  DOI：10.1021/acs.orglett.1c00451

  日期：2021.3.19

  Heteroarene boronate esters constitute valuable intermediates in modern organic synthesis. As building blocks, they can be further applied to the synthesis of new materials, since they can be easily transformed into any other functional group. Efforts toward novel and efficient strategies for their preparation are clearly desirable. Here, we have achieved the borylation of commercially available heteroarene

  杂芳烃硼酸酯是现代有机合成中有价值的中间体。作为积木，它们可以进一步应用于新材料的合成，因为它们可以很容易地转化为任何其他官能团。显然需要努力为它们的制备提供新颖和有效的策略。在这里，我们在易于使用的凝胶纳米反应器中在非常温和的条件下实现了市售杂芳烃卤化物的硼化。它在室温下在无光催化剂和有氧条件下使用可见光作为能源，使该协议非常有吸引力。凝胶网络提供了足够的稳定微环境以支持广泛的底物范围，包括呋喃、噻吩、硒酚和吡咯硼酸酯。