2-羟基-2-(4-溴苯基)丙烷 | 2077-19-2

• 物质功能分类: 有机原料 - 烃类化合物及其衍生物 - 烃类卤化物
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-羟基-2-(4-溴苯基)丙烷
• 中文别名: 2-(4-溴苯)丙烷-2-醇
• 英文名称: 2-(4-bromophenyl)propan-2-ol
• 英文别名: 2-(4-bromophenyl)-2-propanol；2-(p-bromophenyl)-2-propanol
• CAS: 2077-19-2
• 化学式: C₉H₁₁BrO
• mdl: MFCD11870096
• 分子量: 215.09
• InChiKey: AOGYBHJTXLXRSM-UHFFFAOYSA-N

物化性质

• 熔点：
  45.6℃
• 沸点：
  75-85℃ /0.1mm
• 密度：
  1.356

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.333
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

安全信息

• 海关编码：
  2906299090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  室温且干燥

SDS

Material Safety Data Sheet

---

Section 1. Identification of the substance
Product Name: 2-(4-Bromophenyl)-2-propanol
Synonyms: 1-Bromo-4-(2-Hydroxypropan-2-yl)benzene

---

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

---

Section 3. Composition/information on ingredients.
Ingredient name: 2-(4-Bromophenyl)-2-propanol
CAS number: 2077-19-2

---

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.
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: C9H11BrO
Molecular weight: 215.1

---

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

---

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-羟基-2-(4-溴苯基)丙烷 在 sodium perborate 、 三氟化硼乙醚 作用下， 以 四氢呋喃 为溶剂， 以23%的产率得到4-溴苯酚
  参考文献：
  名称：

  过硼酸钠：氢过氧化苄基重排的便捷试剂

  摘要：

  已经发现三氟化硼醚化物中的过硼酸钠是一种有效的试剂，用于以高收率将富电子和高度取代的苄基叔醇氢过氧化物重排为苯酚。

  DOI：

  10.1016/s0040-4039(00)61534-4
• 作为产物：
  描述：

  4-溴异丙苯 在 2,6-二甲基吡啶 、 水 、 碳酸氢钠 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 1.5h， 生成 2-羟基-2-(4-溴苯基)丙烷
  参考文献：
  名称：

  连续流电化学实现实用且位点选择性的 C−H 氧化

  摘要：

  在此，我们报告了一种实用且经济高效的电化学方法，使用连续流反应器对苄基 C(sp 3 )−H 键进行高选择性单氧化。通过生产 115 克其中一种醇产品，电化学方法展示了出色的范围和可扩展性。

  DOI：

  10.1002/anie.202310138
• 作为试剂：
  描述：

  [RuH(tBu-PNP(-))(CO)] 、 氢气 在 2-羟基-2-(4-溴苯基)丙烷 作用下， 以 甲苯 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 生成
  参考文献：
  名称：

  质子穿梭在通过金属-配体合作可逆激活氢中的作用

  摘要：

  通过涉及金属-配体合作 (MLC) 的途径可逆活化 H2 被认为在许多过渡金属催化的氢化和脱氢反应中很重要。然而，探索这种转变机制的实验信息很少。在这里，我们对通过 MLC 途径将 H2 1,2-加成到广泛使用的铁催化剂 [(iPrPNP)FeH(CO)] (1) (iPrPNP = N(CH2CH2PiPr2)2- ）。我们报告了使用作为“质子穿梭机”的质子添加剂提高 H2 活化速率的首批实验演示之一。我们的结果表明质子穿梭机需要能够同时捐赠和接受质子，最好的穿梭是强氢键供体但足够弱的酸以避免过渡金属络合物有害质子化的分子。此外，比较 1 种和两种广泛使用的钌催化剂之间通过 MLC 途径的 H2 活化速率，可以得出关于金属、辅助配体和质子穿梭在 H2 活化中的作用的更一般性结论。这项研究的结果为设计催化剂和添加剂以通过 MLC 途径促进 H2 活化提供了指导。

  DOI：

  10.1021/jacs.9b09062

文献信息

• Direct arylation of strong aliphatic C–H bonds
  作者：Ian B. Perry、Thomas F. Brewer、Patrick J. Sarver、Danielle M. Schultz、Daniel A. DiRocco、David W. C. MacMillan

  DOI：10.1038/s41586-018-0366-x

  日期：2018.8

  C(sp3)–heteroatom bonds from strong C–H bonds has been reported6,7. Additionally, valuable technologies have been developed for the formation of carbon–carbon bonds from the corresponding C(sp3)–H bonds via substrate-directed transition-metal C–H insertion8, undirected C–H insertion by captodative rhodium carbenoid complexes9, or hydrogen atom transfer from weak, hydridic C–H bonds by electrophilic

  尽管过渡金属催化的交叉偶联方法取得了广泛的成功，但 sp3 杂化碳原子的反应仍然存在相当大的局限性，大多数方法依赖于预官能化的烷基金属或溴化物偶联伙伴 1,2。尽管使用天然官能团（例如，羧酸、烯烃和醇）通过扩大潜在原料的范围提高了此类转化的整体效率3-5，但碳氢（C-H）键的直接官能化——有机分子中最丰富的部分——代表了一种更理想的分子构建方法。近年来，已经报道了从强 C-H 键形成 C(sp3)-杂原子键的一系列令人印象深刻的反应6,7。此外，已经开发出有价值的技术，用于通过底物导向的过渡金属 C-H 插入 8、通过捕获性铑卡宾配合物 9 的非定向 C-H 插入或氢原子转移从相应的 C(sp3)-H 键形成碳-碳键通过亲电开壳物质 10-14 从弱的氢化 C-H 键中提取。尽管取得了这些进展，但尚未实现用于将强中性 C(sp3)-H 键与芳基亲电试剂偶联的温和通用平台。在这里，我们描述了
• Oxidation of Tertiary Aromatic Alcohols to Ketones in Water
  作者：Dengfeng Chen、Yuchen Zhang、Xingyu Pan、Fei Wang、Shenlin Huang

  DOI：10.1002/adsc.201800612

  日期：2018.9.17

  A new rosin‐based amphiphile enables the oxidation of tertiary aromatic alcohols in water under mild conditions. The oxidation process is mediated by β‐scission of alkoxy radicals. Our catalyst system including the surfactant, catalysts, and water can be easily recycled within the same reaction vial.

  一种新的基于松香的两亲物能够在温和条件下氧化水中的芳族叔醇。氧化过程是由烷氧基的β断裂介导的。我们的催化剂体系，包括表面活性剂，催化剂和水，可以在同一反应瓶中轻松回收。
• [EN] MACROCYCLIC BROAD SPECTRUM ANTIBIOTICS<br/>[FR] ANTIBIOTIQUES MACROCYCLIQUES À LARGE SPECTRE
  申请人：RQX PHARMACEUTICALS INC

  公开号：WO2018149419A1

  公开（公告）日：2018-08-23

  Provided herein are antibacterial compounds, wherein the compounds in some embodiments have broad spectrum bioactivity. In various embodiments, the compounds act by inhibition of bacterial type 1 signal peptidase (SpsB), an essential protein in bacteria. Pharmaceutical compositions and methods for treatment using the compounds described herein are also provided.

  本文提供了抗菌化合物，其中在某些实施例中，这些化合物具有广谱生物活性。在各种实施例中，这些化合物通过抑制细菌类型1信号肽酶（SpsB）发挥作用，这是细菌中的一种必需蛋白质。还提供了使用所述化合物的药物组合物和治疗方法。
• Kinetics and Mechanism of Acid Catalysed Hydration of α-Methylstyrenes
  作者：Oldřich Pytela、Bronislav Trlida

  DOI：10.1135/cccc20071025

  日期：——

  Twelve para-substituted α-methylstyrenes with substituents H, CH₃, CF₃, CH₃O, CH₃S, F, Cl, Br, CH₃CO, CH₃SO₂, CN a NO₂ were synthesised; additionally, the acid catalysed hydration kinetics of these compounds were measured in sulfuric acid in a concentration range c from 0.017 to 9.58 mol l^-1, at 25.0 °C. The observed rate constants obtained were used to construct the kinetic acidity function and calculate the catalytic rate constants. Based on the evaluation of the acidity function kinetic dependence on acid medium concentration, and the substituent effects of acid catalysed hydration of α-methylstyrenes on the catalytic rate constants, the mechanism of acid catalysed hydration was verified. The mechanism involves the addition of a proton to the double bond of α-methylstyrene in the rate-limiting reaction step denoted as A-SE2. No evident difference was found between the effects of the acid medium on the acid catalysed hydration of styrenes and α-methylstyrenes, which indicates very similar activity coefficients of the reactants, and of the transition state of both substrates. The substituent effects evaluation shows that the rate-limiting step of the reaction consists in the addition of a proton to the substrate. The carbocation formation in the transition state of this reaction step proceeds roughly half-way compared with the extent of the carbocation formation by cumyl chloride hydrolysis. The obtained carbocation is in particular stabilised by the substituents with +M effect, while the influence of the substituents with -M and I effects is significantly smaller.

  十二种带有取代基H、CH₃、CF₃、CH₃O、CH₃S、F、Cl、Br、CH₃CO、CH₃SO₂、CN和NO₂的α-甲基苯乙烯被合成；此外，在浓度范围从0.017到9.58摩尔/升的硫酸中，测量了这些化合物的酸催化水合动力学。所得到的观察速率常数被用来构建动力学酸度函数并计算催化速率常数。通过评估酸性函数动力学对酸性介质浓度的依赖性，以及α-甲基苯乙烯的酸催化水合反应的取代基效应对催化速率常数的影响，验证了酸催化水合的机理。该机理涉及在速率限制的反应步骤中向α-甲基苯乙烯的双键加入质子，被标记为A-SE2。在酸性介质对苯乙烯和α-甲基苯乙烯的酸催化水合的影响之间没有明显差异，这表明反应物和两种底物的过渡态的活性系数非常相似。取代基效应评估显示，反应的速率限制步骤在向底物加入质子时发生。与叔丁基氯化物水解形成的碳正离子相比，该反应步骤的过渡态中的碳正离子形成大致进行了一半。所得到的碳正离子特别受到具有+M效应的取代基的稳定作用，而具有-M和I效应的取代基的影响则明显较小。
• The Ritter Reaction under Truly Catalytic Brønsted Acid Conditions
  作者：Roberto Sanz、Alberto Martínez、Verónica Guilarte、Julia M. Álvarez-Gutiérrez、Félix Rodríguez

  DOI：10.1002/ejoc.200700562

  日期：2007.10

  (DNBSA) catalyze the Ritter reaction of secondary benzylic alcohols giving rise to the corresponding N-benzylacetamides in usually high yields. Reactions can be conducted without exclusion of oxygen and without the need of dry solvents. With tertiary α,α-dimethylbenzylic alcohols a different pathway involving a formal dimerization reaction takes place under the acid-catalytic conditions used. (© Wiley-VCH

  简单的有机酸如 2,4-二硝基苯磺酸 (DNBSA) 催化仲苄醇的 Ritter 反应，通常以高产率生成相应的 N-苄基乙酰胺。反应可以在不排除氧气和不需要干燥溶剂的情况下进行。对于叔 α,α-二甲基苄醇，在所使用的酸催化条件下发生了涉及正式二聚反应的不同途径。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)