噻吩-3-硼酸频哪醇酯 | 214360-70-0

• 物质功能分类: 化学试剂 - 有机试剂 - 磺酸/亚磺酸
• 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: 噻吩-3-硼酸频哪醇酯
• 中文别名: 3-(4,4,5,5-四甲基1,3,2-二氧杂硼烷-2-基)噻吩；3-噻吩硼酸频哪醇酯
• 英文名称: 4,4,5,5-tetramethyl-2-thiophen-3-yl-[1,3,2]dioxaborolane
• 英文别名: thiophene-3-boronic acid pinacol ester；4,4,5,5-tetramethyl-2-(3-thienyl)-1,3,2-dioxaborolane；3-thienylboronic acid pinacol ester；3-thiophene boronic acid pinacol ester；3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene；2-(Thiophene-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane；4,4,5,5-tetramethyl-2-(thien-3-yl)-1,3,2-dioxaborolane；thiophen-3-yl boronic acid pinacol ester；pinacol 3-thiophenylboronate；4,4,5,5-Tetramethyl-2-(thiophen-3-yl)-1,3,2-dioxaborolane；4,4,5,5-tetramethyl-2-thiophen-3-yl-1,3,2-dioxaborolane
• CAS: 214360-70-0
• 化学式: C₁₀H₁₅BO₂S
• 分子量: 210.105
• InChiKey: HQXQOBAEDQBINI-UHFFFAOYSA-N

物化性质

• 熔点：
  72-73 °C
• 沸点：
  286.5±13.0 °C(Predicted)
• 密度：
  1.07±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.05
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  46.7
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• TSCA：
  No
• 危险品标志：
  T+
• 海关编码：
  2934999090
• 危险类别：
  6.1(b)
• 安全说明：
  S25,S45
• 危险类别码：
  R26/28
• 包装等级：
  III
• 危险品运输编号：
  1544
• 危险性防范说明：
  P261,P280,P305+P351+P338
• 危险性描述：
  H302+H312+H332,H315,H319,H335
• 储存条件：
  室温且干燥

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Thiophene-3-boronic acid, pinacol ester
Synonyms:

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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: Thiophene-3-boronic acid, pinacol ester
CAS number: 214360-70-0

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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: C10H15BO2S
Molecular weight: 210.1

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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, sulfur 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：

  噻吩-3-硼酸频哪醇酯 在 gold(III) chloride 、 N-溴代丁二酰亚胺(NBS) 作用下， 以 1,2-二氯乙烷 为溶剂， 反应 24.0h， 以85%的产率得到2-(2,5-二溴-3-噻吩)-4,4,5,5-四甲基-1,3,2-二噁硼烷
  参考文献：
  名称：

  金（III）芳香族硼酸酯的催化的卤化与Ñ -Halosuccinimides

  摘要：

  芳环上带有卤素取代基的芳族硼酸酯可通过AuCl 3催化的N-卤代琥珀酰亚胺的卤化反应合成。

  DOI：

  10.1021/ol102350v
• 作为产物：
  描述：

  3-甲基噻吩 、 联硼酸频那醇酯 在 亚硝酸特丁酯 、 N-羟基邻苯二甲酰亚胺 、 lithium bromide 、 4-(叔丁氧羰基)吡啶 作用下， 以 乙腈 为溶剂， 反应 39.0h， 以45%的产率得到噻吩-3-硼酸频哪醇酯
  参考文献：
  名称：

  在无过渡金属条件下在没有方向性基团的情况下裂解C（芳基）-CH3键

  摘要：

  现在，有机化学家可以选择性地和顺序地构建碳-碳σ键，而选择性裂解碳-碳σ键的方法，特别是对于未反应的碳氢化合物，仍然受到限制。通常需要通过环应变，引导基团或在羰基或氰基的存在下进行活化。在这项工作中，通过使用顺序策略C（芳基）-CH 3的位点选择性裂解和硼化在指导无基团和无过渡金属的条件下开发了键。各种芳烃的甲基被选择性裂解并被硼基取代。机理分析表明，它是通过分子间的连续分子间氧化和由自由基脱羧反应生成的涉及芳基稳定的持久性硼基自由基的瞬态芳基自由基偶联而进行的。

  DOI：

  10.1002/anie.201901783

文献信息

• Fluoroalcohols: versatile solvents in hypervalent iodine chemistry and syntheses of diaryliodonium(III) salts
  作者：Toshifumi Dohi、Nobutaka Yamaoka、Yasuyuki Kita

  DOI：10.1016/j.tet.2010.04.116

  日期：2010.7

  hypervalent iodine reagents has found extensive applications with the aid of the fluoroalcohols to produce highly reactive catalytic species under mild conditions. The fluoroalcohols are now widely used as versatile solvents not only in hypervalent iodine chemistry, but also in other organic syntheses. This manuscript for the Special Issue deals with the background of the hypervalent iodine chemistry

  我们首先引入1,1,1,3,3,3-六氟异丙醇（HFIP）和2,2,2-三氟乙醇（TFE）作为涉及1980年代高价碘介导的酚氧化反应的独特溶剂，其中的氟代醇已经成功地将其用作反应性阳离子中间体的稳定溶剂，该反应性中间体是通过二乙酸苯基碘（III）和二碘苯基双（三氟乙酸）（PIFA）的作用而原位生成的。这项开创性的研究在高价碘化学上取得了突破，利用这种独特的培养基，出现了许多能够实现多种转化的合成应用。例如，在HFIP和TFE中首次发现了PIFA对苯醚的单电子转移（SET）氧化能力，利用独特的酸样行为来稳定芳香族阳离子自由基。最近，高价碘试剂的催化策略已发现在氟代醇的帮助下在温和条件下产生高反应性催化物种的广泛应用。氟代醇现在不仅在高价碘化学中而且在其他有机合成中也广泛用作通用溶剂。该特刊的手稿涉及高价碘化学的背景知识以及涉及氟代醇在合成二芳基碘鎓（III）盐中的应用的新话题。高价碘试剂的催
• [EN] NOVEL COMPOUNDS AND PHARMACEUTICAL COMPOSITIONS THEREOF FOR THE TREATMENT OF HEPATITIS B<br/>[FR] NOUVEAUX COMPOSÉS ET COMPOSITIONS PHARMACEUTIQUES DE CEUX-CI POUR LE TRAITEMENT DE L'HÉPATITE B
  申请人：GALAPAGOS NV

  公开号：WO2020239656A1

  公开（公告）日：2020-12-03

  The present invention discloses compounds according to Formula (I), wherein X, G, R1, R2a, R2b, R3, R4, and R5 are as defined herein. The present invention relates to compounds, methods for their production, pharmaceutical compositions comprising the same, and methods of treatment using the same, for the prophylaxis and/or treatment of diseases involving hepatitis B by administering the compound of the invention.

  本发明公开了根据式（I）的化合物，其中X、G、R1、R2a、R2b、R3、R4和R5如本文所定义。本发明涉及化合物、其生产方法、包括其在内的药物组合物，以及使用该化合物进行预防和/或治疗涉及乙型肝炎的疾病的方法。
• [EN] NEW THIENOPYRIMIDINE DERIVATIVES, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM<br/>[FR] NOUVEAUX DÉRIVÉS DE THIÉNOPYRIMIDINE, PROCÉDÉ POUR LEUR PRÉPARATION ET COMPOSITIONS PHARMACEUTIQUES LES CONTENANT
  申请人：SERVIER LAB

  公开号：WO2015097123A1

  公开（公告）日：2015-07-02

  Compounds of formula (I): wherein R1, R2, R3, R4, R5, R6, R7, R12, X, A and n are as defined in the description.

  式（I）的化合物：其中R1、R2、R3、R4、R5、R6、R7、R12、X、A和n的定义如描述中所述。
• Suzuki–Miyaura coupling of unstrained ketones <i>via</i> chelation-assisted C–C bond cleavage
  作者：Cheng Jiang、Zhao-Jing Zheng、Tian-Yang Yu、Hao Wei

  DOI：10.1039/c8ob02075b

  日期：——

  Herein, we report that unstrained ketones can be efficiently employed as electrophiles in Suzuki–Miyaura reactions via catalytic activation of unstrained C–C bonds assist by an N-containing directing group. A wide range of aromatic ketones directly coupled with boronic ester with excellent functional group tolerance. This strategy provides an alternative and versatile approach to constructing biaryls

  在本文中，我们报道，未催化反应的酮可通过含氮的导向基团催化未反应的C-C键的催化活化而有效地用作Suzuki-Miyaura反应中的亲电子试剂。多种芳族酮直接与硼酸酯偶联，具有出色的官能团耐受性。该策略提供了从未应变的酮构建联芳基的另一种通用方法。
• Suzuki–Miyaura cross-coupling reaction of aryl and heteroaryl pinacol boronates for the synthesis of 2-substituted pyrimidines
  作者：Shigehiro Asano、Seiji Kamioka、Yoshiaki Isobe

  DOI：10.1016/j.tet.2011.10.057

  日期：2012.1

  Suzuki–Miyaura cross-coupling reaction with 2-heteroarylboronic acids is generally challenging due to these acids easy decomposition. To overcome this problem, we developed a coupling method that uses 2-heteroaryl pinacol boronates in the presence of 1.0 mol % Pd(OAc)2 and 2.0 mol % S-Phos with 4 equiv amount of LiOH in dioxane and H2O at 80 °C for 30 min. This developed method allowed for the synthesis

  由于这些酸易于分解，因此与2-杂芳基硼酸的铃木-宫浦交叉偶联反应通常具有挑战性。为克服此问题，我们开发了一种偶合方法，该方法在1.0 mol％Pd（OAc）2和2.0 mol％S-Phos的存在下，在80％的二恶烷和H 2 O中于80摩尔下使用2-杂芳基频哪醇硼酸酯°C 30分钟。这种发达的方法允许从2-氯嘧啶基衍生物高产率地合成各种各样的2-杂芳基嘧啶，并且还可以用于由杂芳基氯化物制备各种联芳基衍生物。