α,α-二溴甲苯 | 618-31-5

• 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: α,α-二溴甲苯
• 中文别名: a,a-二溴甲苯；亚苄基二溴；二溴甲苯
• 英文名称: benzylidene dibromide
• 英文别名: benzal bromide；(Dibromomethyl)benzene；dibromomethylbenzene
• CAS: 618-31-5
• 化学式: C₇H₆Br₂
• 分子量: 249.933
• InChiKey: VCJZTATVUDMNLU-UHFFFAOYSA-N

物化性质

• 熔点：
  111℃
• 沸点：
  156 °C23 mm Hg(lit.)
• 密度：
  1.51 g/mL at 25 °C(lit.)
• 闪点：
  >230 °F
• 稳定性/保质期：
  避免与不相容的材料接触。

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：
  0.14
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 危险等级：
  6.1(a)
• 安全说明：
  S24/25
• 危险类别码：
  R23/24,R33
• 海关编码：
  2903999090
• 包装等级：
  II
• 危险类别：
  6.1(a)
• WGK Germany：
  3
• 危险品运输编号：
  UN 2927 6.1/PG 2
• 危险品标志：
  T
• 储存条件：
  密封储存，应存放在阴凉、干燥的仓库中。

SDS

Name:	Alpha Alpha-Dibromotoluene 97% Material Safety Data Sheet
Synonym:	Benzal Bromide
CAS:	618-31-5

Section 1 - Chemical Product MSDS Name:Alpha Alpha-Dibromotoluene 97% Material Safety Data Sheet
Synonym:Benzal Bromide

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
618-31-5	Benzal Bromide	97	210-543-7

Hazard Symbols: T
Risk Phrases: 23/24 33

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Toxic by inhalation and in contact with skin. Danger of cumulative effects.Lachrymator (substance which increases the flow of tears).The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation and possible burns. Lachrymator (substance which increases the flow of tears). May cause chemical conjunctivitis and corneal damage.
Skin:
May cause severe irritation and possible burns.
Ingestion:
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. The toxicological properties of this substance have not been fully investigated.
Inhalation:
The toxicological properties of this substance have not been fully investigated. May cause severe respiratory tract irritation and possible burns. Can produce delayed pulmonary edema.
Chronic:
Effects may be delayed.

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Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. Do NOT allow victim to rub eyes or keep eyes closed.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or 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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Containers may explode when heated.
Extinguishing Media:
Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out. Use water spray, dry chemical, carbon dioxide, or appropriate 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. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Provide ventilation.

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Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed.
Avoid ingestion and inhalation. Wash clothing before reuse.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

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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# 618-31-5: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Liquid
Color: clear very slight orange to brown
Odor: toluene-like odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 156 deg C @ 23.00mm Hg
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: 110 deg C ( 230.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: 1.5100g/cm3
Molecular Formula: C7H6Br2
Molecular Weight: 249.93

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat.
Incompatibilities with Other Materials:
Strong bases, strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen bromide.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 618-31-5 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Benzal Bromide - 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
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 2810
Packing Group: III
IMO
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
Packing Group: II
RID/ADR
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
Packing group: III

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 23/24 Toxic by inhalation and in contact with
skin.
R 33 Danger of cumulative effects.
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
S 28A After contact with skin, wash immediately with
plenty of water.
S 37 Wear suitable gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 618-31-5: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 618-31-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 618-31-5 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：

  α,α-二溴甲苯 在 N,N-二异丙基乙胺 作用下， 以 乙腈 为溶剂， 反应 72.0h， 以80%的产率得到溴甲苯
  参考文献：
  名称：

  卤代烷通过可见光介导的脱卤作用。

  摘要：

  可以通过简单的全卤化/脱卤序列以通常高收率进行活化的CH键的净选择性溴化和氯化。光化学还原不需要光催化剂，而是依赖于底物和还原剂的电子给体-受体复合物的形成，或者自动光催化。尽管有任何明显的光子吸收，但仍会发生一些反应，这是涉及胺类的其他光化学反应的警惕故事。机械实验为这种观察提供了解释。

  DOI：

  10.1021/acs.orglett.9b03848
• 作为产物：
  描述：

  二氯甲基苯 在 三溴化硼 作用下， 生成 α,α-二溴甲苯
  参考文献：
  名称：

  Kondratenko,N.V. et al., Journal of Organic Chemistry USSR (English Translation), 1970, vol. 6, p. 1436 - 1439

  摘要：

  DOI：
• 作为试剂：
  描述：

  1-己烯 、 过氧化氢苯甲酰 在 α,α-二溴甲苯 作用下， 反应 3.0h， 生成 (2-bromohexyl)benzene 、 、
  参考文献：
  名称：

  Homolytic addition of benzylidene bromide to trimethylvinylsilane and 1-hexene

  摘要：

  Benzylidene bromide reacts with unsaturated compounds CH2=CHR (R = Bu, SiMe(3)) in the presence of benzoyl peroxide to give PhCHBrCH(2)CHRBr adducts.

  DOI：

  10.1007/bf00698261

文献信息

• Palladium(0) Complex-Catalyzed Debrominative Coupling of (Tribromomethyl)- and (Dibromomethyl)benzenes to Diarylacetylenes and 1,2-Diarylethenes
  作者：Shuntaro Mataka、Guo-Bin Liu、Masashi Tashiro

  DOI：10.1055/s-1995-3878

  日期：1995.2

  Palladium(0)-triphenylphosphine complex-catalyzed debrominative coupling reaction of (tribromomethyl)benzenes gave diarylacetylenes or a mixture of (E)- and (Z)-α,β-dibromostilbenes depending upon the substrate and the solvent being used. On the other hand, (dibromomethyl)benzenes afforded (E)-stilbenes selectively under the same reaction conditions.

  通过铂(0)-三苯膦络合物催化的去溴偶联反应，（三溴甲基）苯类物质会生成二取代乙炔或者根据所用底物和溶剂的不同，产生（E）-和（Z）-α，β-二溴代联苯乙烯混合物。另一方面，（二溴甲基）苯类物质在相同的反应条件下，会优先得到（E）-联苯乙烯。
• Glutamate aggrecanase inhibitors
  申请人：Sum Phaik-Eng

  公开号：US20070043066A1

  公开（公告）日：2007-02-22

  The present invention relates to modulators of metalloproteinase activity.

  本发明涉及金属蛋白酶活性调节剂。
• Substituted N, N-disubstituted diamino compounds useful for inhibiting cholesteryl ester transfer protein activity
  申请人：——

  公开号：US20020120011A1

  公开（公告）日：2002-08-29

  The invention relates to substituted polycyclic aryl and heteroaryl tertiary-heteroalkylamine compounds useful as inhibitors of cholesteryl ester transfer protein (CETP; plasma lipid transfer protein-I) and compounds, compositions and methods for treating atherosclerosis and other coronary artery diseases. Preferred tertiary-heteroalkylamine compounds are substituted N,N-disubstituted diamines. A preferred specific N,N-disubstituted diamine is the compound: 1

  这项发明涉及替代多环芳基和杂环芳基的三级杂烷基胺化合物，可用作胆固醇酯转移蛋白（CETP；血浆脂质转移蛋白-I）的抑制剂，以及用于治疗动脉粥样硬化和其他冠状动脉疾病的化合物、组合物和方法。首选的三级杂烷基胺化合物是取代的N,N-二取代二胺。首选的具体N,N-二取代二胺化合物是：1
• N-Heterocyclic Carbene-Protected Ag Nanoparticles Immobilized on Polyacrylonitrile Fiber as Efficient Catalysts for a Three-Component Coupling Reaction
  作者：Jian Cao、Hongqi Tian

  DOI：10.1002/asia.201800154

  日期：2018.6.18

  report the preparation and characterization of N‐heterocyclic carbene (NHC)‐stabilized silver NPs supported on polyacrylonitrile fiber (PANF). As a result, Ag loadings of up to 8 % and particle sizes of 11.0±3.2 nm were achieved. This novel nanocomposite catalyst demonstrated high activity in addition to excellent stability and reusability in the three‐component reaction between alkynes, haloalkanes

  金属纳米颗粒（NPs）通常通过引入封端剂或其在载体上的分布来稳定。在此背景下，我们报告了聚丙烯腈纤维（PANF）上负载的N杂环卡宾（NHC）稳定的银NP的制备和表征。结果，实现了高达8％的Ag负载和11.0±3.2nm的粒径。除了在炔烃，卤代烷烃和胺的三组分反应中具有出色的稳定性和可重复使用性之外，这种新型的纳米复合催化剂还具有很高的活性。在该系统中，通过支持作用和配体作用使AgNP稳定。独特的NHC保护的AgNP结构和PANF支持在C sp的去质子化中发挥协同作用-H键，周转数高达3500。该催化剂成功地循环使用了八次，活性没有明显损失，并且AgNPs没有明显的聚集。此外，使用PANF-NHC @ Ag作为催化剂的流动系统的实施可产生57 mmol h -1的有效生产率。
• Phosphorus(V)-catalyzed deoxydichlorination reactions of aldehydes
  作者：Jie An、Xiaoping Tang、Joshua Moore、William Lewis、Ross M. Denton

  DOI：10.1016/j.tet.2013.07.100

  日期：2013.10

  phosphorus(V)-catalysis manifold in which phosphine oxide turnover is achieved using oxalyl chloride as a consumable reagent. The new method is applicable to a range of aldehydes and, in combination with palladium-catalyzed reductive dimerization, gives rise to a new catalytic approach to the synthesis of stilbenes and a short formal synthesis of resveratrol.

  报道醛的氧化膦催化转化为1,1-二氯。该反应通过磷（V）-催化歧管进行，其中使用草酰氯作为消耗试剂实现氧化膦的转化。这种新方法是适用于一系列的醛，并且在用钯催化的还原二聚结合，产生了一个新的催化方法来芪的合成和白藜芦醇的短正式合成。

表征谱图