57704-78-6

Basic information

• Product Name: 1-(biphenyl-2-yl)-1-phenylethylene
• Synonyms: 1-(biphenyl-2-yl)-1-phenylethylene
• CAS NO: 57704-78-6
• Molecular Weight: 256.347
• Mol File: 57704-78-6.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1-(biphenyl-2-yl)-1-phenylethylene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(biphenyl-2-yl)-1-phenylethylene(57704-78-6)
• EPA Substance Registry System: 1-(biphenyl-2-yl)-1-phenylethylene(57704-78-6)

Safety Data

• Hazardous Substances Data: 57704-78-6(Hazardous Substances Data)

Upstream product

• 917-64-6 methyl magnesium iodide 
• 1985-32-6 2-phenylbenzophenone 
• 100-52-7 benzaldehyde 
• 1779-49-3 Methyltriphenylphosphonium bromide 
• 24892-82-8 1-bromo-2-(1-phenylpropen-1-yl)benzene 
• 98-80-6 phenylboronic acid 
• 4406-72-8 2-phenyl[1,3,2]dioxaborolane 

Downstream Products

• 5235-80-3 9,10-dihydro-9-phenylphenanthrane 
• 68752-12-5 10-Phenyl-8a,9-dihydro-phenanthrene 
• 844-20-2 9-phenylphenanthrene 
• 56849-83-3 9-methyl-9-phenylfluorene 

Relevant articles and documents

The Different Faces of [Ru(bpy)3Cl2] and fac[Ir(ppy)3] Photocatalysts: Redox Potential Controlled Synthesis of Sulfonylated Fluorenes and Pyrroloindoles from Unactivated Olefins and Sulfonyl Chlorides

A cascade alkene sulfonylation that simultaneously forges C-S and C-C bonds is a highly efficient and powerful approach for directly accessing structurally diverse sulfonylated compounds in a single operation. The reaction was enabled by visible-light-mediated regioselective radical addition of sulfonyl chlorides to 2-arylstyrenes using fac[Ir(ppy)3] as a photocatalyst, demonstrating its unique role in a photocascade process to execute atom transfer radical addition (ATRA) followed by photocyclization. A new class of sulfonyl-substituted fluorenes and pyrroloindoles, which are useful in the field of photoelectronic materials and medicinal chemistry, was produced in excellent yields by this photocascade reaction. In contrast, the cyclization was interrupted when using the [Ru(bpy)3Cl2] catalyst having lower reduction potential, leading only to the formation of a C-S bond and the production of acyclic sulfonylated 2-arylstyrenes under identical reaction conditions. The synthetic utility of the present room-temperature photocatalysis is enhanced by the broad availability of bench-stable sulfonyl chlorides and unactivated olefins, thereby providing a cost-effective and broad-scope protocol.

High-enantioselectivity 1,1-diarylboroalkanes and preparation method thereof

The invention provides high-enantioselectivity 1,1-diarylboroalkanes and a preparation method thereof, belonging to the technical field of organic synthetic chemistry. The structural general formula of the compounds is disclosed as Formula I. The invention also provides a preparation method of the high-enantioselectivity 1,1-diarylboroalkanes. The method comprises the following steps: carrying out reaction on a copper salt and an alkali under the catalytic action of an alkali to generate a tert-butyl oxy copper intermediate, and reacting with pinacol biborate to generate a copper-boron material, inserting C-C double bonds, and obtaining the hydrogen bononization products under the action of alcohol. The 1,1-diarylboroalkanes have high enantioselectivity; and the high performance liquid chromatography experiment proves that the ee value can reach 90% or above.