1-溴-3-乙基苯 | 2725-82-8

• 物质功能分类: 有机原料 - 烃类化合物及其衍生物
• 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: 1-溴-3-乙基苯
• 中文别名: 3-溴乙苯；3-溴乙基苯；1-溴-3-乙基苯,98%
• 英文名称: 1-bromo-3-ethylbenzene
• 英文别名: 1-ethyl-3-bromobenzene；3-ethylbromobenzene
• CAS: 2725-82-8
• 化学式: C₈H₉Br
• mdl: MFCD00156128
• 分子量: 185.063
• InChiKey: ZRFJYAZQMFCUIX-UHFFFAOYSA-N

物化性质

• 熔点：
  -20.49°C (estimate)
• 沸点：
  85 °C
• 密度：
  1,3493 g/cm3
• 闪点：
  76-78°C/10mm
• 溶解度：
  可溶于氯仿（少许）、乙酸乙酯（少许）、甲醇（少许）
• 稳定性/保质期：
  遵照规定使用和储存，则不会分解。

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 安全说明：
  S26,S36/37/39,S37/39
• 海关编码：
  2903999090
• 危险品标志：
  Xi
• 危险类别码：
  R36/37/38
• WGK Germany：
  3
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  存储于阴凉干燥处。

SDS

Name:	1-Bromo-3-ethylbenzene 97% Material Safety Data Sheet
Synonym:
CAS:	2725-82-8

Section 1 - Chemical Product MSDS Name:1-Bromo-3-ethylbenzene 97% Material Safety Data Sheet
Synonym:

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
2725-82-8	1-Bromo-3-ethylbenzene	97%	unlisted

Hazard Symbols: XI
Risk Phrases: 36/37/38

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

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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. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

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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.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 2725-82-8: 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.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Liquid
Color: colorless
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 85 - 87 deg C @20mmHg
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: C8H9Br
Molecular Weight: 185

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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, hydrogen bromide, bromine.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 2725-82-8 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
1-Bromo-3-ethylbenzene - 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: XI
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
protection.
WGK (Water Danger/Protection)
CAS# 2725-82-8: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 2725-82-8 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 2725-82-8 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：

  1-溴-3-乙基苯 在 四溴化碳 、 (4,4'-di-tert-butyl-2,2'-dipyridyl)-bis-(2-phenylpyridine(-1H))-iridium(III) hexafluorophosphate 作用下， 以 二氯甲烷 为溶剂， 反应 36.0h， 生成 1-溴-3-(1-溴乙基)苯
  参考文献：
  名称：

  Visible-light-mediated benzylic sp3 C–H bond functionalization to C–Br or C–N bond

  摘要：

  A visible-light-promoted functionalization of unactivated benzylic sp(3) C-H bonds was developed. Ethylbenzene derivatives were converted to the corresponding benzyl bromides or afforded benzylamine derivatives in a one-pot manner under visible light photoredox conditions. (C) 2016 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2016.04.036
• 作为产物：
  描述：

  3-溴苯乙烯 在 甲醇 、 palladium diacetate 、 频那醇硼烷 作用下， 以 二氯甲烷 为溶剂， 反应 12.0h， 以99%的产率得到1-溴-3-乙基苯
  参考文献：
  名称：

  广义化学选择性转移加氢/氢化氘

  摘要：

  使用HBPin和各种质子试剂作为氢源，已经开发了一种普遍，简单而有效的不饱和键转移加氢方法。包括烯烃，炔烃，芳族杂环，醛，酮，亚胺，偶氮，硝基，环氧和腈化合物在内的所有底物均应用于该催化体系。可以容忍在Pd / C / H 2组合下无法生存的各种基团。研究了反应物的活性，其变化趋势为：苯乙烯>二苯基甲亚胺>苯甲醛>偶氮苯>硝基苯>喹啉>苯乙酮>苄腈。还研究了带有两个或多个不同不饱和键的底物，并以优异的化学选择性发生了转移氢化。由Pd（OAc）2和HBPin生成的二氧化钛极大地提高了TH效率。此外，使用D 2 O和HBPin通过原位HD生成和区分，实现了末端芳族烯烃的化学选择性抗Markovnikov加氢氘。

  DOI：

  10.1002/adsc.202000759

文献信息

• [EN] METHODS OF TREATMENT OF AMYLOIDOSIS USING ASPARTYL-PROTEASE INIHIBITORS<br/>[FR] PROCEDES DE TRAITEMENT D'AMYLOIDOSE UTILISANT DES INHIBITEURS DE PROTEASE ASPARTYLE
  申请人：ELAN PHARM INC

  公开号：WO2005070407A1

  公开（公告）日：2005-08-04

  The invention relates to acetyl 2-hydroxy-1,3-diaminospirocyclohexanes and derivatives thereof that are useful in treating diseases, disorders, and conditions associated with amyloidosis. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.

  这项发明涉及乙酰2-羟基-1,3-二氨基螺环己烷及其衍生物，可用于治疗与淀粉样变性相关的疾病、疾病和症状。淀粉样变性是指与A-beta蛋白异常沉积相关的一系列疾病、疾病和症状。
• 氢化反应方法
  申请人：郑州大学

  公开号：CN111099986B

  公开（公告）日：2023-02-03

  本发明涉及一种氢化反应方法，属于有机合成技术领域。本发明的氢化反应方法，包括以下步骤：氢受体化合物、频哪醇硼烷、催化剂在质子氢存在的条件下于溶剂中进行氢转移反应，使得氢受体化合物进行氢化反应；所述催化剂为钯催化剂、铱催化剂、铑催化剂中的一种或两种以上；所述氢受体化合物包含碳碳双键、碳碳三键、碳氧双键、碳氮双键、氮氮双键、硝基、碳氮三键、环氧中的一种或两种以上的官能团。本发明的方法反应条件温和，易操作，收率高，反应时间短，底物适用范围广，适应于碳碳双键、碳碳三键、碳氧双键、碳氮双键、氮氮双键、硝基、碳氮三键、环氧官能团，具有较好的选择性，反应专一性强。
• A mild and efficient rhenium-catalyzed transfer hydrogenation of terminal olefins using alcoholysis of amine–borane adducts as a reducing system
  作者：Hailin Dong、Heinz Berke

  DOI：10.1016/j.jorganchem.2011.01.027

  日期：2011.5

  mantane) catalyzes the alcoholysis of ammonia–borane and amine–boranes and the catalytic transfer hydrogenations of various terminal olefins. Excellent yields were achieved at 70 °C in isopropanol using tBuOK as a co-catalyst affording TOF values up to 396 h−1.

  [ReBr 2（NO）（CH 3 CN）（PTA）2 ]（PTA = 1，3，5-三氮杂-7-磷金刚烷）催化氨-硼烷和胺-硼烷的醇解以及各种末端的催化转移加氢反应烯烃。使用t BuOK作为助催化剂，在70°C的异丙醇中获得优异的收率，TOF值高达396 h -1。
• Tetrahydroxydiboron-Mediated Palladium-Catalyzed Transfer Hydrogenation and Deuteriation of Alkenes and Alkynes Using Water as the Stoichiometric H or D Atom Donor
  作者：Steven P. Cummings、Thanh-Ngoc Le、Gilberto E. Fernandez、Lorenzo G. Quiambao、Benjamin J. Stokes

  DOI：10.1021/jacs.6b02132

  日期：2016.5.18

  There are few examples of catalytic transfer hydrogenations of simple alkenes and alkynes that use water as a stoichiometric H or D atom donor. We have found that diboron reagents efficiently mediate the transfer of H or D atoms from water directly onto unsaturated C-C bonds using a palladium catalyst. This reaction is conducted on a broad variety of alkenes and alkynes at ambient temperature, and boric

  使用水作为化学计量的 H 或 D 原子供体的简单烯烃和炔烃的催化转移氢化的例子很少。我们发现二硼试剂使用钯催化剂有效地介导了 H 或 D 原子从水中直接转移到不饱和 CC 键上。该反应在环境温度下对多种烯烃和炔烃进行，硼酸是唯一的副产物。机理实验表明，该反应是通过从水中的氢原子转移生成 Pd 氢化物中间体而实现的。重要的是，还实现了从化学计量的 D2O 中完全掺入氘。
• Copper-Catalyzed Asymmetric Hydrogenation of Aryl and Heteroaryl Ketones
  作者：Scott W. Krabbe、Mark A. Hatcher、Roy K. Bowman、Mark B. Mitchell、Michael S. McClure、Jeffrey S. Johnson

  DOI：10.1021/ol4021223

  日期：2013.9.6

  High throughput screening enabled the development of a Cu-based catalyst system for the asymmetric hydrogenation of prochiral aryl and heteroaryl ketones that operates at H2 pressures as low as 5 bar. A ligand combination of (R,S)-N-Me-3,5-xylyl-BoPhoz and tris(3,5-xylyl)phosphine provided benzylic alcohols in good yields and enantioselectivities. The electronic and steric characteristics of the ancillary

  高通量筛选使得能够开发用于在低至5 bar的H 2压力下进行的前手性芳基和杂芳基酮的不对称氢化的Cu基催化剂体系。（R，S）-N -Me-3，5-二甲苯基-BoPhoz和三（3，5-二甲苯基）膦的配体组合以良好的收率和对映选择性提供了苄醇。辅助三芳基膦的电子和空间特性对于确定反应性和选择性均很重要。