炔丙基氧基甲基三氟硼酸钾 | 898544-65-5

• 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: 炔丙基氧基甲基三氟硼酸钾
• 中文别名: 炔丙氧基甲基三氟硼酸钾
• 英文名称: potassium prop-2-ynyloxymethyltrifluoroborate
• 英文别名: potassium ((prop-2-yn-1-yloxy)methyl)trifluoroborate；Potassium (prop-2-ynyloxymethyl)trifluoroborate；potassium;trifluoro(prop-2-ynoxymethyl)boranuide
• CAS: 898544-65-5
• 化学式: C₄H₅BF₃O*K
• mdl: MFCD11052731
• 分子量: 175.988
• InChiKey: VBLRQXCZBWAQBO-UHFFFAOYSA-N

物化性质

• 熔点：
  138 °C(Solv: acetone (67-64-1); ethyl ether (60-29-7))

计算性质

• 辛醇/水分配系数(LogP)：
  0.96
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  5

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Potassium (prop-2-ynyloxymethyl)trifluoroborate
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: Potassium (prop-2-ynyloxymethyl)trifluoroborate
CAS number: 898544-65-5

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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: C4H5BF3KO
Molecular weight: 176.0

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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, hydrogen fluoride.

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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：

  炔丙基氧基甲基三氟硼酸钾 、 2-苯基喹啉 在 N,N,N,N-tetraethylammonium tetrafluoroborate 、 三氟乙酸 、 10-甲基-9-均三甲苯基吖啶高氯酸盐 作用下， 以 水 、 乙腈 为溶剂， 反应 28.0h， 以62%的产率得到2-phenyl-4-((prop-2-yn-1-yloxy)methyl)quinoline
  参考文献：
  名称：

  杂芳烃与有机三氟硼酸酯的光电化学CH烷基化

  摘要：

  已经开发了一种用有机三氟硼酸盐进行杂芳烃的CH烷基化的光电化学方法。电催化和光氧化还原催化的合并为有机三氟硼酸盐的烷基自由基的产生和功能化提供了一种无化学氧化剂的方法。使用具有出色的区域选择性和化学选择性的伯，仲和叔烷基三氟硼酸酯对各种杂芳烃进行功能化。

  DOI：

  10.1002/anie.201814488
• 作为产物：
  描述：

  (溴甲基)三氟硼酸钾 、 2-丙炔-1-醇 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 14.5h， 以90%的产率得到炔丙基氧基甲基三氟硼酸钾
  参考文献：
  名称：

  Synthesis of Functionalized Organotrifluoroborates via the 1,3-Dipolar Cycloaddition of Azides

  摘要：

  We have successfully prepared potassium azidoalkyltrifluoroborates from the corresponding halogen compounds in 94 - 98% yields through a nucleophilic substitution reaction with NaN3. In the presence of various alkynes and Cu(I) as a catalyst, these azidotrifluoroborates easily formed 1,4-disubstituted organo-[1,2,3]-triazol-1-yl-trifluoroborates in 85-98% yields. This method was then developed into a facile one-pot synthesis for the preparation of various organo-[1,2,3]-triazol-1-yl-trifluoroborates using haloalkyltrifluoroborates as the starting materials.

  DOI：

  10.1021/ol060826r

文献信息

• Development of a Quinolinium/Cobaloxime Dual Photocatalytic System for Oxidative C–C Cross-Couplings <i>via</i> H₂ Release
  作者：Jianbin Li、Chia-Yu Huang、Jing-Tan Han、Chao-Jun Li

  DOI：10.1021/acscatal.1c04073

  日期：2021.11.19

  Designing molecular photocatalysts for potent photochemical reactivities ranks among the most challenging but rewarding endeavors in synthetic photochemistry. Herein, we document a quinoline-based organophotoredox catalyst, 2,4-bis(4-methoxyphenyl)quinoline (DPQN2,4-di-OMe), that could be assembled via the facile aldehyde–alkyne–amine (A3) couplings. Unlike the reported photocatalysts, which impart

  为有效的光化学反应设计分子光催化剂是合成光化学中最具挑战性但最有价值的工作之一。在此，我们记录了一种基于喹啉的有机光氧化还原催化剂，2,4-双（4-甲氧基苯基）喹啉（DPQN 2,4-di-OMe），它可以通过简单的醛-炔-胺（A 3）偶联组装. 与报道的光催化剂不同，它们将光反应性作为共价连接的实体传递，我们的机理研究表明DPQN 2,4-di-OMe具有独特的质子激活模式。只需质子化，DPQN 2,4-di-OMe就可以在可见光照射下达到高度氧化的激发态（E* 1/2 = +1.96 V vs标准甘汞电极，SCE）。在此基础上，DPQN 2,4-di-OMe和钴肟的协同合并形成了一个氧化交叉偶联平台，在没有自由基前体的情况下，使 Minisci 烷基化和各种 C-C 键形成反应成为可能。化学氧化剂。DPQN 2,4-di-OMe的催化负载可降至 0.025 mol% (TON = 33
• Radical‐Polar Crossover Annulation: A Platform for Accessing Polycyclic Cyclopropanes
  作者：John A. Milligan、Kevin L. Burns、Anthony V. Le、Viktor C. Polites、Zheng‐Jun Wang、Gary A. Molander、Christopher B. Kelly

  DOI：10.1002/adsc.201901051

  日期：2020.1.7

  to the cyclopropanation of olefins that are embedded within bicyclic scaffolds. Whereas these systems are notoriously recalcitrant toward classical cyclopropanation approaches, RPC cyclopropanation can be executed with ease, leading to polycarbocyclic and polyheterocyclic cyclopropanes. The cyclopropanation proceeds through a photoredox‐enabled Giese‐type radical addition followed by an intramolecular

  光氧化还原介导的自由基/极性交叉（RPC）工艺提供了具有挑战性的环空解决方案。在本文中，我们描述了一种嵌入双环支架内的烯烃的环丙烷化方法。众所周知，这些系统对经典的环丙烷化方法难以抗拒，而RPC环丙烷化可以轻松实施，从而形成多碳环和多杂环环丙烷。环丙烷化的过程是通过添加光致氧化还原的Giese型自由基进行的，然后在新戊基离去基团上进行分子内阴离子取代反应。
• Discovery of Potent and Selective Inhibitors against Protein-Derived Electrophilic Cofactors
  作者：Xie Wang、Zongtao Lin、Katelyn A. Bustin、Nate R. McKnight、William H. Parsons、Megan L. Matthews

  DOI：10.1021/jacs.1c12748

  日期：2022.3.30

  they have remained blind spots in traditional activity-based protein profiling (ABPP) approaches that target nucleophiles. More recently, reverse-polarity (RP)-ABPP using hydrazine probes identified an electrophilic N-terminal glyoxylyl (Glox) group for the first time in secernin-3 (SCRN3). The biological function(s) of both the protein and Glox as a cofactor has not yet been pharmacologically validated

  亲电子辅助因子广泛分布于自然界，在许多生理和疾病过程中发挥着重要作用，但它们在传统的以亲核试剂为靶标的基于活性的蛋白质分析 (ABPP) 方法中仍然存在盲点。最近，使用肼探针的反极性 (RP)-ABPP 鉴定了亲电子Nsecernin-3 (SCRN3) 中首次出现的末端乙二醛 (Glox) 基团。蛋白质和 Glox 作为辅助因子的生物学功能尚未经过药理学验证，因为缺乏可能破坏并因此确定其活性的选择性抑制剂。在这里，我们提出了第一个平台，用于分析扩展的亲核探针库对主链羰基辅助因子（如 Glox 和丙酮酰基 (Pyvl) 基团）的反应性和选择性。我们首先在整个蛋白质组范围内应用文库来分析和确认与各种亲电蛋白靶点的结合，包括 secernin-2 (SCRN2)，此处显示也具有 Glox 基团。广泛反应的吲哚乙基肼探针用于体外竞争性RP-ABPP 测定从一组市售的亲核片段中筛选针对此类辅助因子的选择性抑制剂。使用含有
• Visible Light Photoredox Cross-Coupling of Acyl Chlorides with Potassium Alkoxymethyltrifluoroborates: Synthesis of α-Alkoxyketones
  作者：Javad Amani、Esmat Sodagar、Gary A. Molander

  DOI：10.1021/acs.orglett.5b03705

  日期：2016.2.19

  A visible-light, single-electron-transfer (SET), photoredox cross-coupling for the synthesis of α-alkoxyketones has been developed. In this method, various aliphatic and aromatic acyl chlorides were successfully coupled with structurally diverse potassium alkoxymethyltrifluoroborates, producing the corresponding α-alkoxyketones with high yields. In this operationally simple and mild cross-coupling

  已经开发了用于合成α-烷氧基酮的可见光，单电子转移（SET），光氧化还原交叉偶联。在这种方法中，成功地将各种脂肪族和芳香族酰氯与结构多样的烷氧基甲基三氟硼酸钾偶联，从而以高收率生产出相应的α-烷氧基酮。在这种操作简单且温和的交叉偶联方案中，所需的酮可通过一种对烷基硼化学和光氧化还原/ Ni催化均具有独特作用的键合连接，从稳定的起始原料中一步获得所需的酮。
• Synthesis of α-Fluoro-α-amino Acid Derivatives via Photoredox-Catalyzed Carbofluorination
  作者：Jaehoon Sim、Mark W. Campbell、Gary A. Molander

  DOI：10.1021/acscatal.8b04284

  日期：2019.2.1

  A mild, metal-free, regioselective carbofluorination of dehydroalanine derivatives has been developed. Alkyl radicals resulting from visible-light photoredox catalysis engage in a radical conjugate addition to dehydroalanine, with subsequent fluorination of the newly generated radical to afford an α-fluoro-α-amino acid. By using a highly oxidizing organic photocatalyst, this process incorporates non-stabilized

  已经开发出温和的，无金属的区域选择性碳氟化的脱氢丙氨酸衍生物。由可见光光氧化还原催化产生的烷基自由基与脱氢丙氨酸加成自由基共轭物，随后对新产生的自由基进行氟化，得到α-氟-α-氨基酸。通过使用高度氧化的有机光催化剂，该方法结合了衍生自可商购获得的烷基三氟硼酸酯的不稳定的伯，仲和叔烷基，以提供各种氟化的非天然氨基酸。