2-(叔丁氧基羰基)乙基硼酸频那醇酯 | 134892-19-6

• 物质功能分类: 医药中间体
• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 硼酸衍生物
• 中文名称: 2-(叔丁氧基羰基)乙基硼酸频那醇酯
• 中文别名: 3-（4,4,5,5-四甲基-[1,3,2]二恶硼烷-2-yl）丙酸丙酯；2-(叔丁氧羰基)乙基硼酸频哪醇酯
• 英文名称: tert-butyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)propanoate
• CAS: 134892-19-6
• 化学式: C₁₃H₂₅BO₄
• 分子量: 256.15
• InChiKey: DAPLUUBGLVENFC-UHFFFAOYSA-N

物化性质

• 沸点：
  288.4±23.0 °C(Predicted)
• 密度：
  0.97±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.81
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 海关编码：
  2934999090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335

SDS

Material Safety Data Sheet

---

Section 1. Identification of the substance
Product Name: 2-(t-Butoxycarbonyl)ethylboronic acid, pinacol ester
Synonyms: t-Butyl 3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)propionate

---

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

---

Section 3. Composition/information on ingredients.
Ingredient name: 2-(t-Butoxycarbonyl)ethylboronic acid, pinacol ester
CAS number: 134892-19-6

---

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: C13H25BO4
Molecular weight: 256.1

---

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

---

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：

  2-(叔丁氧基羰基)乙基硼酸频那醇酯 在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 生成 tert-butyl 3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)propionate
  参考文献：
  名称：

  INHIBITORS OF FATTY ACID AMIDE HYDROLASE

  摘要：

  本发明提供了由任何公式（I）、（II）、（III）、（IV）、（V）或（VI）中的任何化合物及其药学上可接受的组合物所包含的范围，或其亚属所包含的范围。本发明还提供了通过向需要的患者投与任何公式（I）、（II）、（III）、（IV）、（V）或（VI）中的任何化合物或其组合物的治疗有效量来治疗FAAH介导的疾病、紊乱或症状的方法。此外，本发明提供了通过向需要的患者投与任何公式（I）、（II）、（III）、（IV）、（V）或（VI）中的任何化合物或其组合物的治疗有效量来抑制FAAH的方法。

  公开号：

  US20150368278A1
• 作为产物：
  描述：

  醋酸叔丁酯 、 碘甲基硼酸频哪醇酯 生成 2-(叔丁氧基羰基)乙基硼酸频那醇酯
  参考文献：
  名称：

  一种方便的β-硼酸酯羰基衍生物的制备方法。硼酸酯“酸酯”配合物干预烯醇烷基化的证据。

  摘要：

  来自“酯”的卤代甲基硼酸酯衍生物与烯醇化锂酯的配合物，在室温下相对稳定，可以通过11 B NMR观察到。碘代甲基硼酸酯衍生物与酯，酮或酰胺烯酸酯的反应可提供相应的β-硼酸酯羰基衍生物收率43-83％。

  DOI：

  10.1016/0040-4039(91)80369-h

文献信息

• Development of Enantiospecific Coupling of Secondary and Tertiary Boronic Esters with Aromatic Compounds
  作者：Marcin Odachowski、Amadeu Bonet、Stephanie Essafi、Philip Conti-Ramsden、Jeremy N. Harvey、Daniele Leonori、Varinder K. Aggarwal

  DOI：10.1021/jacs.6b03963

  日期：2016.8.3

  functional groups (esters, azides, nitriles, alcohols, and ethers). The reaction also worked well with other electron-rich heteroaromatics and 6-membered ring aromatics provided they had donor groups in the meta position. Conditions were also found under which the B(pin)- moiety could be retained in the product, ortho to the boron substituent. This protocol, which created a new C(sp2)–C(sp3) and an adjacent

  仲硼酸酯与 sp2 亲电试剂的立体有择交叉偶联（Suzuki-Miyaura 反应）是合成中长期存在的问题，但在使用钯催化的特定情况下已经取得了进展。然而，目前无法实现与叔硼酸酯的相关偶联。为了解决这一普遍问题，我们专注于利用芳基锂和硼酸酯之间形成的硼酸盐络合物的反应性的替代方法。我们推断，随后添加氧化剂或亲电子试剂会分别从芳环中去除电子或以 Friedel-Crafts 型方式反应，产生阳离子物质，这将引发硼取代基的 1,2-迁移，创建新的 C-C 键。消除（在前一种情况下，在进一步氧化之前）将导致重新芳构化，从而立体特异性地产生偶联产物。最初的工作是用 2-furyllithium 检查的。尽管测试的氧化剂不成功，但亲电试剂，特别是 NBS，使得偶联反应能够以良好的收率与范围广泛的仲和叔硼酸酯发生偶联反应，具有不同的空间需求和官能团（酯、叠氮化物、腈、醇和醚） ）。该反应也适用于其他富电子杂芳烃和
• Enantiospecific Synthesis of <i>ortho</i> ‐Substituted 1,1‐Diarylalkanes by a 1,2‐Metalate Rearrangement/ <i>anti</i> ‐S _<i>N</i> 2′ Elimination/Rearomatizing Allylic Suzuki–Miyaura Reaction Sequence
  作者：Belén Rubial、Beatrice S. L. Collins、Raphael Bigler、Stefan Aichhorn、Adam Noble、Varinder K. Aggarwal

  DOI：10.1002/anie.201811343

  日期：2019.1.28

  The one‐pot sequential coupling of benzylamines, boronic esters, and aryl iodides has been investigated. In the presence of an N‐activator, the boronate complex formed from an ortho‐lithiated benzylamine and a boronic ester undergoes stereospecific 1,2‐metalate rearrangement/anti‐SN2′ elimination to form a dearomatized tertiary boronic ester. Treatment with an aryl iodide under palladium catalysis

  研究了苄胺、硼酸酯和芳基碘化物的一锅顺序偶联。在 N-活化剂存在下，由邻位锂化苄胺和硼酸酯形成的硼酸酯络合物经历立体定向 1,2-金属化物重排/抗 S N 2' 消除，形成脱芳构化叔硼酸酯。在钯催化下用芳基碘化物处理导致 γ-选择性烯丙基 Suzuki-Miyaura 交叉偶联重新芳构化，生成 1,1-二芳基烷烃。当使用对映体富集的 α-取代苄胺时，会形成具有高立体特异性的相应 1,1-二芳基烷烃。
• Use of alkyl 2,4,6-triisopropylbenzoates in the asymmetric homologation of challenging boronic esters
  作者：Robin Larouche-Gauthier、Catherine J. Fletcher、Irantzu Couto、Varinder K. Aggarwal

  DOI：10.1039/c1cc14469c

  日期：——

  (-)-Sparteine induced lithiation of primary 2,4,6-triisopropylbenzoates and subsequent homologation of boronic esters is reported. A comparative study with lithiated N,N-diisopropylcarbamates has demonstrated the superiority of the hindered benzoate.

  报道了 (-)-Sparteine 诱导的主要 2,4,6-三异丙基苯甲酸酯的锂化和随后的硼酸酯的同系化。与锂化 N,N-二异丙基氨基甲酸酯的比较研究证明了受阻苯甲酸酯的优越性。
• sp²−sp³ Hybridized Mixed Diboron: Synthesis, Characterization, and Copper-Catalyzed β-Boration of α,β-Unsaturated Conjugated Compounds
  作者：Ming Gao、Steven B. Thorpe、Webster L. Santos

  DOI：10.1021/ol901359n

  日期：2009.8.6

  A novel sp2−sp3 hybridized mixed diboron and its reactivity on the copper-catalyzed β-boration of α,β-unsaturated conjugated compounds to afford the corresponding β-borated compounds is reported. The presence of sp3-hybridized boron provides a mild β-boration condition in the absence of phosphine and base additives. Finally, our investigations demonstrate that the sp2-hybridized boron of the mixed

  报道了一种新颖的sp 2 -sp 3杂交的混合二硼及其在α，β-不饱和共轭化合物的铜催化的β-硼酸酯上的反应性，从而提供了相应的β-硼酸酯化的化合物。sp 3-杂化硼的存在在没有膦和碱添加剂的情况下提供了温和的β-硼化条件。最后，我们的研究表明混合二硼的sp 2-杂化硼被选择性转移到共轭底物的β-碳上。
• β-Borylation of conjugated carbonyl compounds with silylborane or bis(pinacolato)diboron catalyzed by Au nanoparticles
  作者：Marios Kidonakis、Michael Fragkiadakis、Manolis Stratakis

  DOI：10.1039/d0ob01806f

  日期：——

  Conjugated aldehydes and ketones undergo reaction with Me2PhSiBpin (pin: pinacolato) catalyzed by Au nanoparticles supported on TiO2 forming exclusively the β-borylation products, via the intermediate formation of the labile silaboration adducts. This chemoselectivity pathway is complementary to the so far known analogous reaction catalyzed by other metals, where β-silylation occurs instead. β-Borylation

  共轭醛和酮与Me 2 PhSiBpin（pin：pinacolato）发生反应，这是通过不稳定形成的硅烷化加合物的中间形成，而Au纳米颗粒负载在TiO 2上，仅形成β-硼化产物。这种化学选择性途径是迄今为止由其他金属催化的类似反应的补充，在其他类似反应中发生了β-甲硅烷基化。在相同的反应条件下，在各种共轭羰基化合物中，pinBBpin也会发生β-硼化反应，这些共轭羰基化合物包括在其尝试的Au催化的合成中没有反应性的酯和酰胺。