Material Safety Data Sheet Section 1. Identification of the substance Product Name: 1-Chloro-4-(4-nitrophenyl)benzene Synonyms: Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section 3. Composition/information on ingredients. Ingredient name: 1-Chloro-4-(4-nitrophenyl)benzene CAS number: 6242-97-3 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: C12H8ClNO2 Molecular weight: 233.6 Section 10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen chloride. 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.
Highly efficient palladium-catalyzed cross-coupling of diarylborinic acids with arenediazoniums for practical diaryl synthesis
作者:Fengze Wang、Chen Wang、Guoping Sun、Gang Zou
DOI:10.1016/j.tetlet.2019.151491
日期:2020.2
A highly efficient cross-coupling of cost-effective diarylborinic acids with both isolatable and latent arenediazoniums, i.e. tetrafluoroborates and aryltriazenes, respectively, has been developed with a practical palladium catalyst system under base-free conditions in open flask at room temperature. A variety of electronically and sterically various biaryls, in particular, those bearing a coordinative
A highly efficient Pd(OAc)2/guanidine aqueous system for the room temperature Suzuki cross-coupling reaction has been developed. The new water-soluble and air-stable catalyst Pd(OAc)2·(1f)2 from Pd(OAc)2 and 1,1,3,3-tetramethyl-2-n-butylguanidine (1f) was synthesized and characterized by X-ray crystallography. In the presence of Pd(OAc)2·(1f)2, coupling of arylboronic acids with a wide range of aryl
Facile Synthesis of Magnetic Hierarchical Core-Shell Structured Fe<sub>3</sub>
O<sub>4</sub>
@PDA-Pd@MOF Nanocomposites: Highly Integrated Multifunctional Catalysts
作者:Rong Ma、Pengbo Yang、Yao Ma、Fengling Bian
DOI:10.1002/cctc.201701693
日期:2018.3.21
Fe3O4@PDA‐Pd@[Cu3(btc)2] (n=5) nanocomposite shows ultrahigh catalyticactivity for the 4‐nitrophenolreduction and Suzuki–Miyaura coupling reactions of aryl halides (Br, Cl) with arylboronic acids. Moreover, the nanocomposite also can be easily separated by an external magnet and reused at least 8 runs with excellent yields for both the reactions. The catalyst has outstanding catalytic performance, mainly
磁性层状壳结构的Fe 3 O 4 @ PDA‐Pd @ [Cu 3(btc)2 ]纳米复合材料是通过一种简便的逐层组装方法制备的。它包含聚多巴胺(PDA)修饰的磁性Fe 3 O 4纳米颗粒(NPS)的芯,Pd NPS的过渡层以及具有可控制厚度的铜基金属有机框架(MOF)的多孔外壳。这种新型的纳米复合材料的特征在于TEM,FTIR,XRD,XPS,N 2吸附-解吸等温线和VSM。制备的Fe 3 O 4 @ PDA‐Pd @ [Cu 3(btc)2 ](n= 5)纳米复合材料对芳基卤化物(Br,Cl)与芳基硼酸的4-硝基苯酚还原反应和Suzuki-Miyaura偶联反应具有超高催化活性。而且,该纳米复合材料还可以容易地被外部磁体分离,并且对于两个反应而言都可以以优异的产率重复使用至少8次。该催化剂具有出色的催化性能,主要是因为[Cu 3(btc)2 ]与Fe 3 O 4 @ PDA-Pd的结合
Palladium Supported on Metformin-Functionalized Magnetic Polymer Nanocomposites: A Highly Efficient and Reusable Catalyst for the Suzuki-Miyaura Coupling Reaction
作者:Pengbo Yang、Rong Ma、Fengling Bian
DOI:10.1002/cctc.201600994
日期:2016.12.19
with arylboronic acids even at palladium loadings of 0.01–0.0007 mol % and the turnover frequency (TOF) reached up to 125 714 h−1. The excellent activity of this Pd/Fe3O4@PMAA‐Met catalyst could be attributed to a “release and catch” catalytic mechanism as well as its nanometer size. This nanocatalyst could be simply separated with an external magnet and reused at least twelve times with excellent yields
本文通过将钯固定在二甲双胍官能化的磁性聚合物表面上,成功制备了一种新型的磁响应纳米催化剂Pd / Fe 3 O 4 @ PMAA‐Met(PMAA =聚(甲基丙烯酸),Met =二甲双胍)。纳米复合材料。这种新型纳米催化剂的特征在于FTIR,XRD,TEM,X射线光电子能谱(XPS)和振动样品磁力法(VSM)。所制备的纳米催化剂表现出优异的催化活性为铃木-宫浦即使在0.01-0.0007摩尔%,转换频率(TOF)钯负载量偶联芳基卤化物(I,溴,氯)与芳基硼酸的反应达到高达125 714ħ - 1。这种Pd / Fe 3 O 4的出色活性@ PMAA-Met催化剂可归因于“释放和捕获”催化机理及其纳米尺寸。该纳米催化剂可以简单地用外部磁体分离,并且可以重复使用至少十二次,从而获得优异的收率。
Analysis of the water extract of waste papaya bark ash and its implications as an in situ base in the ligand-free recyclable Suzuki–Miyaura coupling reaction
作者:Manashi Sarmah、Anindita Dewan、Manoj Mondal、Ashim J. Thakur、Utpal Bora
DOI:10.1039/c6ra00454g
日期:——
in the presence of water produce the corresponding hydroxides in situ, responsible for the basicity. Application of the ash–water extract as a base was highly effective for ligand-free Pd(OAc)2 catalyzed Suzuki–Miyaura cross-coupling reaction. The reaction proceeds smoothly without any promoter/ligand to give excellent yields. Moreover, after completion of the reaction, the catalyticsystem could be