Material Safety Data Sheet Section 1. Identification of the substance Product Name: 3,4-Dibromofuran Synonyms: Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section 3. Composition/information on ingredients. Ingredient name: 3,4-Dibromofuran CAS number: 32460-02-9 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, refrigerated. 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: C4H2Br2O Molecular weight: 225.9 Section 10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide, hydrogen bromide. 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.
摘要 脉冲喷嘴傅里叶变换微波光谱已被用于观察呋喃-3,4-d 2 -(氩) 2 范德华配合物的旋转光谱。除了先前测量的两种同位素呋喃-和呋喃-2- d - 外,还测量了呋喃-3- d -、呋喃-3,4- d 2 - 和呋喃- d 4 - 氩配合物的旋转光谱氩气。已经为每个同位素体拟合了旋转和四次离心畸变常数。已经从旋转跃迁的超精细分裂中确定了呋喃-3-d-氩络合物的氘四极耦合常数。考虑大振幅范德华振动影响的模型已用于确定分子间结构参数。氩气位于距离 R = 3 处。539(2) A 来自呋喃 - 氩络合物的呋喃质心。已经发现氩向氧移动,包括 R 和呋喃主轴 c 之间的角度 θ = 9.7(2)°。在呋喃-(氩) 2 络合物中,两个氩原子在呋喃平面的上方和下方呈现对称位置,与呋喃-氩络合物相比,R 和 θ 几乎没有变化。
Synthesis of Biaryls Using the Coupling Reaction of Diaryldimethyltins with Copper(II) Nitrate
作者:Genta Harada、Masato Yoshida、Masahiko Iyoda
DOI:10.1246/cl.2000.160
日期:2000.2
Cu(NO3)2·3H2O in THF proceeds smoothly at room temperature under ambient atmosphere to produce the corresponding biaryls in good to high yields. Diaryldimethyltins can be prepared in high yields by the reaction of aryllithiums with dichlorodimethyltin.
POLYCYCLIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE INCLUDING THE SAME
申请人:SAMSUNG DISPLAY CO., LTD.
公开号:US20180123057A1
公开(公告)日:2018-05-03
Disclosed are a polycyclic compound and an organic electroluminescence device including the same. The polycyclic compound according to an embodiment is represented by the following Formula 1,
Catalyst-Controlled Regiodivergent Dehydrogenative Heck Reaction of 4-Arylthiophene/Furan-3-Carboxylates
作者:Shang Gao、Zijun Wu、Fei Wu、Aijun Lin、Hequan Yao
DOI:10.1002/adsc.201600696
日期:2016.12.22
A catalyst‐controlled regiodivergent dehydrogenativeHeckreaction of 4‐arylthiophene/furan‐3‐carboxylates has been realized. Use of a palladium catalyst led to the C‐5 alkenylation through electronic palladation, while a ruthenium catalyst favored the C‐2 alkenylation with the assistance of a directing group. This reaction exhibited good to excellent regioselectivities.