双(4-氯苯基)二硒化物 | 20541-49-5

• 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: 双(4-氯苯基)二硒化物
• 中文别名: 4,4′-二氯二苯基二硒化物；4-氯苯基二硒化物
• 英文名称: bis(p-chlorophenyl) diselenide
• 英文别名: Bis(4-chlorophenyl) diselenide；1,2-bis(4-chlorophenyl)diselane；1,2-bis(4-chlorophenyl) diselenide；di(4-chlorophenyl) diselenide；p-chloro diphenyl diselenide；1-chloro-4-[(4-chlorophenyl)diselanyl]benzene
• CAS: 20541-49-5
• 化学式: C₁₂H₈Cl₂Se₂
• 分子量: 381.022
• InChiKey: DVGQWQMPCZYJLR-UHFFFAOYSA-N

物化性质

• 熔点：
  85-88°C
• 沸点：
  192 °C(Press: 2 Torr)
• 稳定性/保质期：
  遵循规定使用和储存，则不会发生分解。

计算性质

• 辛醇/水分配系数(LogP)：
  2.27
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 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(b)
• 危险品标志：
  T,N
• 海关编码：
  2903999090
• 包装等级：
  III
• 危险类别：
  6.1(b)
• 危险品运输编号：
  UN 2811
• 储存条件：
  存于阴凉干燥处

SDS

Name:	Bis(4-Chlorophenyl)diselenide 98% Material Safety Data Sheet
Synonym:	None
CAS:	20541-49-5

Section 1 - Chemical Product MSDS Name:Bis(4-Chlorophenyl)diselenide 98% Material Safety Data Sheet
Synonym:None

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
20541-49-5	Bis(4-Chlorophenyl)diselenide	98	243-864-6

Hazard Symbols: T
Risk Phrases: 23/25 33

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Toxic by inhalation and if swallowed. Danger of cumulative effects.The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. May cause loss of nails and hair. May cause garlic smell on the breath and body.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. May cause central, peripheral, and autonomic nervous system effects.
Chronic:
Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath, Chronic exposure to selenium may cause pallor, garlic breath, metallic taste, anemia, liver and spleen damage. Chronic selenium poisoning is characterized by loss of hair and nails, skin lesions, and abnormalities of the nervous system.

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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. 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:

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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.
Extinguishing Media:
Use agent most appropriate to extinguish fire. 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:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

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Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Use with adequate ventilation.
Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
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# 20541-49-5: 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: Powder
Color: yellow or orange
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 85-87C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C12H8Cl2Se2
Molecular Weight: 380.882

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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, dust generation, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Hydrogen chloride, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, selenium/selenium oxides.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 20541-49-5 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Bis(4-Chlorophenyl)diselenide - 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: SELENIUM COMPOUND, N.O.S.
Hazard Class: 6.1
UN Number: 3283
Packing Group: II
IMO
Shipping Name: SELENIUM COMPOUND, N.O.S.
Hazard Class: 6.1
UN Number: 3283
Packing Group: II
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: T
Risk Phrases:
R 23/25 Toxic by inhalation and if swallowed.
R 33 Danger of cumulative effects.
Safety Phrases:
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# 20541-49-5: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 20541-49-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 20541-49-5 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：

  双(4-氯苯基)二硒化物 在 水 、 次磷酸 作用下， 以 四氢呋喃 为溶剂， 反应 1.0h， 生成 p-chloroselenophenol
  参考文献：
  名称：

  一种简单且无催化剂的芳基硒醇与芳族重氮盐反应合成二芳基硒化物的方法

  摘要：

  我们在此描述一种简单且无催化剂的方法，该方法是通过使用二芳基二硒化物和次磷酸（H 3 PO 2），以四氢呋喃为溶剂，通过四氟硼酸芳族重氮鎓盐与芳基硒醇的反应来合成二芳基硒化物。这是直接的亲核芳族取代（SNAr）反应，使用带有吸电子和供电子基团的二芳基二硒化物和烯二唑鎓盐以中等至良好的收率提供相应的二芳基硒化物。

  DOI：

  10.1016/j.tetlet.2013.12.086
• 作为产物：
  描述：

  p-chloroselenophenol 在 吡啶 、 三氯异氰尿酸 、 苯甲酸 作用下， 以 二氯甲烷 、 水 、 乙腈 为溶剂， 反应 0.5h， 以89%的产率得到双(4-氯苯基)二硒化物
  参考文献：
  名称：

  通过使用三氯二氰尿酸氧化硒醇制备二硒化物

  摘要：

  硒醇很容易被吡啶、水、苯甲酸和三氯异氰脲酸的乙腈和二氯甲烷溶液氧化成二硒化物。

  DOI：

  10.1081/scc-100104062
• 作为试剂：
  描述：

  diphenyl allylphosphonate 在 双(4-氯苯基)二硒化物 、 2,4,6-tri-(p-methoxyphenyl) pyrylium tetrafluoroborate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 、 1,2-二氯乙烷 为溶剂， 生成 、
  参考文献：
  名称：

  光需氧硒-π-酸多重催化作用下烯烃与唑的分子间氮杂瓦克偶联

  摘要：

  在此，提出了通过二元和三元硒-π-酸多催化作用实现唑类与烯烃的分子间光需氧氮杂瓦克偶联。正如 60 多个例子（包括后期药物衍生化）所展示的那样，该方法允许在温和条件下快速获得广泛的N-烯丙基化唑和代表性的嗪酮，并具有广泛的官能团耐受性。从区域化学的角度来看，该方案是对同源光氧化还原催化烯烃胺化的补充，因为它们通常通过烯丙基氢原子抽象或烯烃底物的单电子氧化进行。这些方法主要导致在烯烃的烯丙基外围或前π键的较少取代位置形成C-N键（即反马尔可夫尼科夫选择性）。然而，当前的过程通过自由基-极性交叉机制进行，该机制仅影响硒催化剂，从而允许烯烃在马尔可夫尼科夫控制下严格通过离子双电子转移机制进行转化。此外，结果表明，通过用碱顺序或一锅处理烯丙基吡咯也可以得到相应的N-乙烯基唑，从而强调了该方法的精湛实用性。

  DOI：

  10.1021/acscatal.4c01327

文献信息

• Nucleophilic cleavage of lactones and esters with zinc selenolates prepared from diselenides in the presence of Zn/AlCl3
  作者：Mohammad Nazari、Barahman Movassagh

  DOI：10.1016/j.tetlet.2008.11.036

  日期：2009.1

  The utility of zinc selenolates for effecting nucleophilic cleavage of simple lactones and esters has been investigated. When zinc selenolate generated via Zn/AlCl3-promoted cleavage of diselenides was reacted with simple lactones and esters, efficient nucleophilic alkyl–oxygen bond cleavage proceeded generating the corresponding carboxylic acids in moderate to excellent yields.

  已经研究了硒酸锌用于简单内酯和酯的亲核裂解的用途。当通过Zn / AlCl 3促进的二硒化物裂解生成的硒化锌与简单的内酯和酯反应时，有效的亲核烷基-氧键裂解便开始进行，从而以中等至极好的收率生成了相应的羧酸。
• Visible-light-induced oxidative coupling of vinylarenes with diselenides leading to α-aryl and α-alkyl selenomethyl ketones
  作者：Gong-Qing Liu、Wei Yi、Peng-Fei Wang、Ji Liu、Meng Ma、Da-Yun Hao、Liang Ming、Yong Ling

  DOI：10.1039/d1gc00049g

  日期：——

  A visible-light-induced oxidative coupling of diselenides with readily available vinylarenes is demonstrated. This benign protocol allows one to access a wide range of α-aryl and α-alkyl selenomethyl ketones in good yields with excellent functional group compatibility. The distinct advantages of this protocol over all previous methods include the use of a green solvent and air as an oxidant and the

  可见光诱导的二硒化物与容易获得的乙烯基芳烃的氧化偶联。这种良性方案允许人们以良好的收率和优异的官能团相容性获得各种α-芳基和α-烷基硒代甲基酮。与所有以前的方法相比，该协议的明显优势包括使用绿色溶剂和空气作为氧化剂，并且缺少光催化剂，碱和氧化剂以及更好的绿色化学基质。此外，标题反应可以在自然阳光下进行，这是可以想象得到的最可持续的能源。此外，反应条件温和，
• α-Arylchalcogenation of acetone with diaryl dichalcogenide via metal-free oxidative C(sp3)–H bond functionalization
  作者：Guobing Yan、Arun Jyoti Borah、Lianggui Wang、Zhangjin Pan、Shuangshuang Chen、Xuqian Shen、Xiangmei Wu

  DOI：10.1016/j.tetlet.2015.05.059

  日期：2015.7

  Direct α-arylchalcogenation of acetone with diaryl dichalcogenides has been achieved by using a mixture of TBHP and DTBP oxidants at 120 °C without transition-metal catalyst via oxidative C(sp3)–H bond functionalization. The method exhibits good functional group tolerance and products were isolated in moderate to high yields.

  通过在120°C下使用TBHP和DTBP氧化剂的混合物，而无过渡金属催化剂通过C（sp3）–H键的氧化作用，可实现丙酮与二芳基二卤代丙酮的直接α-芳基硫醇化。该方法表现出良好的官能团耐受性，并且以中等至高收率分离出产物。
• Ruthenium Catalyzed C–H Selenylations of Aryl Acetic Amides and Esters via Weak Coordination
  作者：Zhengyun Weng、Xinyue Fang、Meicui He、Linghui Gu、Jiafu Lin、Zheyu Li、Wenbo Ma

  DOI：10.1021/acs.orglett.9b02196

  日期：2019.8.16

  An efficient ruthenium-catalyzed direct C–H selenylation of aryl acetic amides and esters has been achieved via distal weakly coordination. Notable features of this protocol including broad substrate scope, wide functional group tolerance, and good regioselectivity. In addition, diaryl disulfides were also successfully applied to this reaction under slightly modified conditions.

  通过远端弱配位，已经实现了有效的钌催化芳基乙酰胺和酯的直接C–H硒化反应。该协议的显着特征包括广泛的底物范围，广泛的官能团耐受性和良好的区域选择性。另外，二芳基二硫化物也已在稍微改变的条件下成功地用于该反应。
• Organoselenium compounds from purines: Synthesis of 6-arylselanylpurines with antioxidant and anticholinesterase activities and memory improvement effect
  作者：Luis Fernando B. Duarte、Renata L. Oliveira、Karline C. Rodrigues、Guilherme T. Voss、Benhur Godoi、Ricardo F. Schumacher、Gelson Perin、Ethel A. Wilhelm、Cristiane Luchese、Diego Alves

  DOI：10.1016/j.bmc.2017.11.019

  日期：2017.12

  We describe here a simple method for the synthesis of 6-arylselanylpurines with antioxidant and anticholinesterase activities, and memory improvement effect. This class of compounds was synthesized in good yields by a reaction of 6-chloropurine with diaryl diselenides using NaBH4 as reducing agent and PEG-400 as solvent. Furthermore, the synthesized compounds were evaluated for their in vitro antioxidant

  我们在这里描述了一种简单的合成具有抗氧化剂和抗胆碱酯酶活性的6-芳基硒基嘌呤的方法，并改善了记忆。通过使用NaBH 4作为还原剂和PEG-400作为溶剂，使6-氯嘌呤与二芳基二硒化物反应，可以高收率地合成这类化合物。此外，评估了合成的化合物的体外抗氧化剂和乙酰胆碱酯酶（AChE）抑制剂的活性。在体内记忆改善方面评估了最佳的AChE抑制剂。我们的结果表明，6-（（（4-氯苯基）硒基）-9 H-嘌呤和6-（对甲苯基硒基）-9 H-嘌呤在体外呈递。抗氧化作用。此外，6-（（（4-氟苯基）硒基）-9 H-嘌呤抑制了AChE活性并改善了记忆力，是治疗阿尔茨海默氏病的有前途的治疗剂。

表征谱图