Material Safety Data Sheet Section 1. Identification of the substance Product Name: 2-Acetoxyphenylboronic acid, pinacol ester Synonyms: Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section 3. Composition/information on ingredients. Ingredient name: 2-Acetoxyphenylboronic acid, pinacol ester CAS number: 480424-68-8 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: C14H19BO4 Molecular weight: 262.1 Section 10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide. 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.
Mechanism and Scope of Nickel-Catalyzed Decarbonylative Borylation of Carboxylic Acid Fluorides
作者:Christian A. Malapit、James R. Bour、Simon R. Laursen、Melanie S. Sanford
DOI:10.1021/jacs.9b08961
日期:2019.10.30
Article describes the development of a base-free, nickel-catalyzeddecarbonylative coupling of carboxylic acid fluorides with diboron reagents to selectively afford aryl boronate ester products. Detailed studies were conducted to assess the relative rates of direct transmetalation between aryl boronate esters and diboron reagents and a bisphosphine nickel(aryl)(fluoride) intermediate. These investigations
triorganocerium reagents and their application in catalyst‐free Zweifel olefinations. These unique cerium species were generated through novel exchange reactions of organohalides with n‐Bu3Ce reagents. The adequate electronegativity of cerium allowed for compensating the disadvantages of both usually functional‐group‐sensitive organolithium species and less reactive organomagnesium reagents. Exchange reactions
描述了三有机铈试剂的原位形成及其在无催化剂的Zweifel烯烃中的应用。这些独特的铈物种是通过有机卤化物与n- Bu 3 Ce试剂的新型交换反应生成的。铈具有足够的负电性,可以弥补通常对官能团敏感的有机锂物质和反应性较低的有机镁试剂的缺点。在芳基和烯基溴上进行交换反应,从而实现手性硼频哪醇酯的对映体特异性转化。最终,这些新的有机铈物种参与了可选择性和空间受阻的酮的选择性1,2-加成反应。
PYRROLOTRIAZINES AS ALK AND JAK2 INHIBITORS
申请人:Breslin Henry J.
公开号:US20120028919A1
公开(公告)日:2012-02-02
The present invention provides a compound of formula I
or a salt form thereof, wherein Q
1
, Q
2
, Q
3
, and Q
4
are as defined herein. The compound of formula I has ALK and/or JAK2 inhibitory activity, and may be used to treat proliferative disorders.
The present invention provides a compound of formula I
or a salt form thereof, wherein Q1, Q2, Q3, and Q4 are as defined herein. The compound of formula I has ALK and/or JAK2 inhibitory activity, and may be used to treat proliferative disorders.
N,B-Bidentate Boryl Ligand-Supported Iridium Catalyst for Efficient Functional-Group-Directed C–H Borylation
作者:Guanghui Wang、Li Liu、Hong Wang、You-Song Ding、Jing Zhou、Shuai Mao、Pengfei Li
DOI:10.1021/jacs.6b11867
日期:2017.1.11
Convenient silylborane precursors for introducing N,B-bidentate boryl ligands onto transition metals were designed, prepared, and employed in ready formation of irdium(III) complexes via Si-B oxidative addition. A practical, efficient catalytic ortho-borylation reaction of arenes with a broad range of directing groups was developed using an in situ generated catalyst from the silylborane preligand 3c and [IrCl(COD)](2).