噻吩-2-硼酸新戊二醇酯 | 355408-55-8

• 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-2-硼酸新戊二醇酯
• 中文别名: 噻吩-2-硼酸，新戊二醇酯
• 英文名称: 5,5-dimethyl-2-(thiophen-2-yl)-1,3,2-dioxaborinane
• 英文别名: 5,5-dimethyl-2-thiophen-2-yl-1,3,2-dioxaborinane
• CAS: 355408-55-8
• 化学式: C₉H₁₃BO₂S
• 分子量: 196.078
• InChiKey: OQCFQKMFRXSPPP-UHFFFAOYSA-N

物化性质

• 熔点：
  97-98 °C
• 沸点：
  294.5±13.0 °C(Predicted)
• 密度：
  1.09±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.52
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  46.7
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2934999090
• 危险性防范说明：
  P261,P264,P270,P271,P280,P301+P312,P302+P352,P304+P340,P330,P363,P501
• 危险性描述：
  H302,H312,H332
• 储存条件：
  2-8℃

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Thiophene-2-boronic acid, neopentyl glycol ester
Synonyms: 5,5-Dimethyl-2-(thiophen-2-yl)-1,3,2-dioxaborinane

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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-2-boronic acid, neopentyl glycol ester
CAS number: 355408-55-8

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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: C9H13BO2S
Molecular weight: 196.1

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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：

  二氧化碳 、 噻吩-2-硼酸新戊二醇酯 在 potassium tert-butylate 、 silver(I) acetate 、 三苯基膦 、 盐酸 作用下， 以 四氢呋喃 、 水 为溶剂， 70.0 ℃ 、2.03 MPa 条件下， 反应 16.0h， 以84%的产率得到2-噻吩甲酸
  参考文献：
  名称：

  Silver(i)-catalyzed carboxylation of arylboronic esters with CO2

  摘要：

  多种芳基硼酸酯通过简单AgOAc/PPh3催化剂高效地与二氧化碳发生羧基化反应，生成相应的羧酸，产率良好。这一简单高效的银(I)催化体系表现出广泛的官能团兼容性。

  DOI：

  10.1039/c2cc32045b
• 作为产物：
  描述：

  噻吩 、 2,2-二甲基-1,3-丙二醇 在 正丁基锂 、 硼酸三丁酯 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 2.25h， 以92%的产率得到噻吩-2-硼酸新戊二醇酯
  参考文献：
  名称：

  通过交叉偶联反应合成新型噻吩取代的 3,3-二苯基-3H-萘并[2,1-b]吡喃，光调制材料的前体

  摘要：

  3,3-二苯基-3H-萘并[2,1-b]吡喃通过共价键连接到萘部分（5、6、8和9）不同位置的一个、两个或三个噻吩核以良好的产量制备。Suzuki 交叉偶联反应用于两种可能的策略：与低聚噻吩偶联前的铬烯化或偶联后的铬烯化，主要中间体是二苯基炔丙醇、官能化萘酚衍生物和噻吩硼酸酯。获得此类光致变色化合物的总产率通常非常令人满意。对于 7 位，使用四氢萘酮衍生物和噻吩溴镁中间体之间的格利雅反应实现了偶联反应。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

  DOI：

  10.1002/ejoc.200300033

文献信息

• Synthesis of Quaternary Carbon Stereocenters by Copper-Catalyzed Asymmetric Allylic Substitution of Allyl Phosphates with Arylboronates
  作者：Momotaro Takeda、Keishi Takatsu、Ryo Shintani、Tamio Hayashi

  DOI：10.1021/jo500068p

  日期：2014.3.21

  A copper-catalyzed asymmetric allylic substitution of γ,γ-disubstituted allyl phosphates with arylboronates has been developed for the construction of quaternary stereocenters. High regio- and enantioselectivities have been achieved by employing a hydroxy-bearing chiral N-heterocyclic carbene ligand, and both E and Z substrates provide the same enantiomer as the major product. The mechanistic aspect

  已经开发了用芳基硼酸酯的铜催化的γ，γ-二取代的烯丙基磷酸的不对称烯丙基取代基，用于构建季立体中心。通过使用带有羟基的手性N-杂环卡宾配体已经实现了高区域选择性和对映体选择性，并且E和Z底物均提供与主要产物相同的对映异构体。还已经研究了这种催化作用的机理，以发现1：1的铜/配体络合物最有可能导致当前的不对称催化作用，并且相对于烯丙基亲电试剂，反应以几乎完美的1,3-抗立体化学进行。
• Selective Monoarylation of Aromatic Ketones and Esters via Cleavage of Aromatic Carbon–Heteroatom Bonds by Trialkylphosphine Ruthenium Catalysts
  作者：Hikaru Kondo、Takuya Kochi、Fumitoshi Kakiuchi

  DOI：10.1021/acs.orglett.6b03761

  日期：2017.2.17

  We report here the ruthenium-catalyzed selective monoarylation of aromatic ketones bearing two ortho carbon–heteroatom (O or N) bonds. Under the newly developed catalyst system consisting of RuHCl(CO)(PiPr3)2, CsF, and styrene, the C–O arylation of 2′,6′-dimethoxyacetophenone with a phenylboronate gave the C–O monoarylation product selectively. The selective C–O monoarylation was applicable to a variety

  我们在这里报告了钌催化的带有两个邻位碳-杂原子（O或N）键的芳族酮的选择性单芳基化。在由RuHCl（CO）（P i Pr 3）2，CsF和苯乙烯组成的新开发的催化剂体系下，2'，6'-二甲氧基苯乙酮与苯基硼酸酯的C–O芳基化选择性地产生了C–O单芳基化产物。选择性C–O单芳基化反应适用于各种芳基硼酸酯和芳族酮，并具有较高的区域选择性和化学选择性。使用芳族酯的C–O单芳基化作为关键步骤，也可以实现正式的交替烯醇合成。
• Copper-Catalyzed Cross-Coupling Reaction of Organoboron Compounds with Primary Alkyl Halides and Pseudohalides
  作者：Chu-Ting Yang、Zhen-Qi Zhang、Yu-Chen Liu、Lei Liu

  DOI：10.1002/anie.201008007

  日期：2011.4.18

  Non‐activated alkyl electrophiles, including alkyl iodides, bromides, tosylates, mesylates, and even chlorides, underwent copper‐catalyzed cross‐coupling with aryl boron compounds and alkyl 9‐BBN reagents (see scheme; 9‐BBN=9‐borabicyclo[3.3.1]nonane). The reactions proceed with practically useful reactivities and thus complement palladium‐ and nickel‐catalyzed Suzuki–Miyaura coupling reactions of alkyl halides

  非活化的烷基亲电试剂，包括烷基碘，溴化物，甲苯磺酸盐，甲磺酸盐，甚至氯化物，与芳基硼化合物和烷基9-BBN试剂进行铜催化交叉偶联（见方案； 9-BBN = 9-硼环[3.3 .1]壬烷）。该反应具有实用的反应性，因此可以补充钯和镍催化的烷基卤的Suzuki-Miyaura偶联反应。
• Ruthenium-Catalyzed α-(Hetero)Arylation of Saturated Cyclic Amines: Reaction Scope and Mechanism
  作者：Aldo Peschiulli、Veerle Smout、Thomas E. Storr、Emily A. Mitchell、Zdeněk Eliáš、Wouter Herrebout、Didier Berthelot、Lieven Meerpoel、Bert U. W. Maes

  DOI：10.1002/chem.201204438

  日期：2013.7.29

  3‐ethyl‐3‐pentanol. A systematic study on the substrate and reagent scope of this transformation is disclosed in this paper. The effect of substitution on both the piperidine ring and the arylboronic ester has been investigated. Smaller (pyrrolidine) and larger (azepane) saturated ring systems, as well as benzoannulated derivatives, were found to be compatible substrates with the α‐arylation protocol. The successful

  过渡金属催化的SP 3 Ç  ħ激活已成为一个有力的方法来官能化的饱和环状胺。我们的小组最近公开了在α位上的哌啶与氮原子的直接催化芳基化反应。如果在催化量的[Ru 3（CO）12]和一当量的3-乙基-3-戊醇。本文公开了对该转化的底物和试剂范围的系统研究。已经研究了取代对哌啶环和芳基硼酸酯的影响。发现较小的（吡咯烷）和较大的（氮杂环庚烷）饱和环系统以及苯并环化的衍生物是与α-芳基化方案兼容的底物。各种杂芳基硼酸酯作为偶联伙伴的成功使用进一步证明了这种直接官能化方法的强大功能。机理研究允许这个明显的转变的催化循环更好地理解为特色在汝前所未有的直接转移金属化II  ^ h种。
• Ruthenium-Catalyzed Carbon−Carbon Bond Formation via the Cleavage of an Unreactive Aryl Carbon−Nitrogen Bond in Aniline Derivatives with Organoboronates
  作者：Satoshi Ueno、Naoto Chatani、Fumitoshi Kakiuchi

  DOI：10.1021/ja0713431

  日期：2007.5.1

  refluxing toluene gave the corresponding phenylation product in 83% yield via aryl carbon−nitrogen bond cleavage. This reaction involves two notable features: (1) the coupling proceeds via the oxidative addition of an aryl carbon−nitrogen bond in anilines to the ruthenium complex, and (2) C−C bond formation takes place via transmetalation between the Ru−NR2 species and organoboronates.

  RuH2(CO)(PPh3)3 催化 2-氨基-6-甲基苯乙酮与苯基硼酸 2,2-二甲基-1,3-丙二醇酯在回流甲苯中反应得到相应的苯基化产物，产率 83%。 -氮键断裂。该反应涉及两个显着特征：（1）通过苯胺中芳基碳氮键与钌络合物的氧化加成进行偶联，以及（2）通过 Ru-NR2 物种之间的金属转移形成 C-C 键和有机硼酸盐。