4-乙炔基苯戊醚 | 79887-16-4

• 物质功能分类: 化学试剂 - 有机试剂 - 炔烃
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 4-乙炔基苯戊醚
• 中文别名: 4-正戊氧基苯乙炔；4-正戊氧基苯乙酰；(4-戊氧基苯基)乙炔
• 英文名称: 1-ethynyl-4-(pentyloxy)benzene
• 英文别名: 4-pentyloxyphenylacetylene；4-n-pentyloxyphenylacetylene；1-ethynyl-4-(n-pentyloxy)benzene；4-pentoxyphenylacetylene；1-Eth-1-ynyl-4-(pentyloxy)benzene；1-ethynyl-4-pentoxybenzene
• CAS: 79887-16-4
• 化学式: C₁₃H₁₆O
• 分子量: 188.269
• InChiKey: MKSWQHOPSDCVMS-UHFFFAOYSA-N

物化性质

• 沸点：
  113-115°C/2mm
• 密度：
  0.96±0.1 g/cm3(Predicted)
• 闪点：
  113-115°C/2mm
• 稳定性/保质期：
  远离氧化物。

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  14
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 危险品标志：
  Xn
• 安全说明：
  S24/25
• 危险类别码：
  R22
• 海关编码：
  2909309090
• 危险性防范说明：
  P233,P260,P261,P264,P271,P280,P302+P352,P304,P304+P340,P305+P351+P338,P312,P321,P332+P313,P337+P313,P340,P362,P403,P403+P233,P405,P501
• 危险性描述：
  H315,H319,H335
• 储存条件：
  存放在密封容器内，并放置在阴凉、干燥处。储存地点须远离氧化剂。

SDS

Name:	1-Eth-1-ynyl-4-(pentyloxy)benzene 97% Material Safety Data Sheet
Synonym:	4-n-Pentyloxyphenylacetylen
CAS:	79887-16-4

Section 1 - Chemical Product MSDS Name:1-Eth-1-ynyl-4-(pentyloxy)benzene 97% Material Safety Data Sheet
Synonym:4-n-Pentyloxyphenylacetylen

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
79887-16-4	1-Eth-1-ynyl-4-(pentyloxy)benzene	97%	unlisted

Hazard Symbols: None Listed.
Risk Phrases: None Listed.

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.

---

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
Treat symptomatically and supportively.

---

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

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Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

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Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

---

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 79887-16-4: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

---

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Liquid
Color: colorless to yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C13H16O
Molecular Weight: 188

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 79887-16-4 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
1-Eth-1-ynyl-4-(pentyloxy)benzene - Not listed by ACGIH, IARC, or NTP.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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Section 14 - TRANSPORT INFORMATION

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 79887-16-4: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 79887-16-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 79887-16-4 is not listed on the TSCA inventory.
It is for research and development use only.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  4-乙炔基苯戊醚 在 N-氯代丁二酰亚胺 、 silver nitrate 作用下， 以 乙腈 为溶剂， 反应 6.0h， 以69%的产率得到1-(nitroethynyl)-4-(pentyloxy)benzene
  参考文献：
  名称：

  一种合成(硝基炔基)苯类化合物的方法

  摘要：

  本发明提供了一种式II所示的(硝基炔基)苯类化合物的方法：以式I所示的苯乙炔类化合物为原料，与硝化试剂加入有机溶剂中，密闭于20～50℃温度下反应，TLC跟踪至反应结束后，反应液后处理制得式II所示的(硝基炔基)苯类化合物。本发明的硝化方法具有硝化位置专一性的优点，只在炔基上硝化，而没有苯环上硝化产物的生成，反应过程安全环保、底物适应性好，各种取代基都可以实现炔基硝化。

  公开号：

  CN106478327B
• 作为产物：
  描述：

  4-(p-pentyloxyphenyl)-2-methyl-3-butyn-2-ol 在 sodium hydride 作用下， 以 甲苯 、 paraffin 为溶剂， 生成 4-乙炔基苯戊醚
  参考文献：
  名称：

  手性 Tolans：铁电液晶的新系列。合成和介晶性质

  摘要：

  通过钯催化偶联反应合成的具有手性烷基的二苯乙炔同系物提供了一系列新的液晶材料，其形成具有铁电性质的手性近晶 C (SmC*) 相。由三个芳环组成的化合物的介晶性质受炔键位置和酯键单元方向的强烈影响。已经系统地研究了末端链长的变化对近晶 A (SmA) 和 SmC* 两个和三个芳环系统的热稳定性的影响。

  DOI：

  10.1246/bcsj.63.1020

文献信息

• Discovery of efficient stimulators for adult hippocampal neurogenesis based on scaffolds in dragon's blood
  作者：Jian-Hua Liang、Liang Yang、Si Wu、Si-Si Liu、Mark Cushman、Jing Tian、Nuo-Min Li、Qing-Hu Yang、He-Ao Zhang、Yun-Jie Qiu、Lin Xiang、Cong-Xuan Ma、Xue-Meng Li、Hong Qing

  DOI：10.1016/j.ejmech.2017.05.025

  日期：2017.8

  discovered to efficiently stimulate adult rats' neurogenesis. In-depth structure-activity relationship studies proved the necessity of a stilbene scaffold that is absent in highly cytotoxic analogs such as chalcones and heteroaryl rings and inactive analogs such as diphenyl acetylene and diphenyl ethane, and validated the importance of an NH in the carboxamide and a methylenedioxy substituent on the

  由衰老和神经系统疾病引起的海马神经发生减少会损害神经回路并导致记忆丧失。一种新的铅化合物（ñ -反式-3'，4'- methylenedioxystilben -4-基乙酰胺27）已发现有效地刺激成年大鼠的神经发生。深入的结构-活性关系研究证明，在高度细胞毒性类似物（如查耳酮和杂芳基环）和无活性类似物（如二苯乙炔和二苯乙烷）中不存在二苯乙烯骨架的必要性，并验证了氨甲酰胺和苯环上的亚甲二氧基取代基。免疫组织化学染色和生化分析表明，与先前报道的神经保护化学物质相比，N-二苯乙烯基羧酰胺具有神经增殖型神经发生的额外能力，从而为提高成年哺乳动物脑的可塑性提供了基础。
• Diethylzinc-Mediated Radical 1,2-Addition of Alkenes and Alkynes
  作者：Xin Li、Songtao He、Qiuling Song

  DOI：10.1021/acs.orglett.1c00669

  日期：2021.4.16

  A novel diethylzinc-mediated radical 1,2-addition of perfluoroalkyl iodides to unactivated alkenes and alkynes is presented, which demonstrates a novel way to generate an ethyl difluoroacetate radical. This method is highly efficient and gives full conversions of the substrates, high yields of the products, and negligible byproducts and requires no column chromatography purifications. The mild conditions

  提出了一种新颖的由二乙基锌介导的全氟烷基碘与非活化烯烃和炔烃进行的1,2-基自由基加成反应，这表明了一种生成二氟乙酸乙酯基团的新方法。该方法非常高效，可实现底物的完全转化，产物的高收率和可忽略的副产物，并且不需要柱色谱法纯化。温和的条件使该协议能够表现出出色的官能团兼容性。
• Oxidize Amines to Nitrile Oxides: One Type of Amine Oxidation and Its Application to Directly Construct Isoxazoles and Isoxazolines
  作者：Xiao-Wei Zhang、Xiao-Lin He、Nan Yan、Hong-Xing Zheng、Xiang-Guo Hu

  DOI：10.1021/acs.joc.0c02281

  日期：2020.12.4

  A facile oxidative heterocyclization of commercially available amines and tert-butyl nitrite with alkynes or alkenes leading to isoxazoles or isoxazolines is described. The unprecedented strategy of the oxidation of an amine directly to a nitrile oxide was used in this cyclization process. This reaction is highly efficient, regiospecific, operationally simple, mild, and tolerant of a variety of functional

  描述了可商购的胺和亚硝酸叔丁酯与炔或烯烃的容易的氧化性杂环化，其导致异恶唑或异恶唑啉。在这种环化过程中使用了前所未有的将胺直接氧化为一氧化氮的策略。该反应是高效的，区域特异性的，操作简单的，温和的，并且耐受多种官能团。对照实验为这种新型的氧化环化反应提供了一种一氧化氮中间体机制。此外，实现了对生物活性分子骨架的合成应用和药物的后期修饰。
• Cleavage of the Carbon-Carbon Triple Bonds of Arylacetylenes for the Synthesis of Arylnitriles without a Metal Catalyst
  作者：Yuanguang Lin、Qiuling Song

  DOI：10.1002/ejoc.201600438

  日期：2016.6

  Cleavage of the carbon–carbon triple bonds of alkynes was achieved, which led to the synthesis of arylnitriles under transition-metal-free conditions. A vast range of terminal alkyne substrates underwent this reaction to provide the corresponding nitriles in moderate to good yields with good functional group tolerance.

  实现了炔烃的碳-碳三键的裂解，从而在无过渡金属的条件下合成芳腈。大量的末端炔底物经历了这种反应，以中等至良好的产率提供相应的腈，并具有良好的官能团耐受性。
• One-Pot Synthesis of 3,5-Disubstituted Isoxazoles from Propargylic Alcohols through Propargylic<i>N</i>-Hydroxylamines
  作者：Chada Raji Reddy、Jonnalagadda Vijaykumar、Enukonda Jithender、Gangireddy Pavan Kumar Reddy、René Grée

  DOI：10.1002/ejoc.201200628

  日期：2012.10

  An efficient approach has been described for the synthesis of 3,5-disubstituted isoxazoles from propargylic alcohols. The strategy involves a one-pot p-TSA-catalyzed N-propargylation of protected hydroxylamines followed by a TBAF-mediated detosylative 5-endo-dig cyclization. The method was successfully used for the synthesis of various 3,5-disubstituted isoxazoles.

  已经描述了一种从炔丙醇合成 3,5-二取代异恶唑的有效方法。该策略涉及一锅 p-TSA 催化的受保护羟胺的 N-炔丙基化，然后是 TBAF 介导的 5-endo-dig 环化。该方法已成功用于合成各种3,5-二取代异恶唑。