62162-97-4

Usage

Chemical Properties

White powder

InChI:InChI=1/C14H9Br/c15-12-7-8-14-11(9-12)6-5-10-3-1-2-4-13(10)14/h1-9H

Upstream product

• 56988-45-5 2-bromo-9-phenanthrenecarboxylic acid 
• 400747-91-3 4'-bromo-[1,1'-biphenyl]-2-carbaldehyde 
• 40138-16-7 2-formylbenzene boronic acid 
• 589-87-7 1,4-bromoiodobenzene 
• 130089-19-9 1-bromo-2-(2-methoxyethenyl)benzene 
• 96557-30-1 2-bromophenylacetaldehyde 
• 85-01-8 phenanthrene 
• 54888-53-8 2-acetamidobibenzyl 
• 54888-90-3 5-Brombibenzyl-2-amin 
• 54888-72-1 C₂₁H₁₉BrN₂O₂S 
• 77233-27-3 2-bromo-10-carboxydibenziodoepinium betaine 
• 3132-99-8 m-bromobenzoic aldehyde 
• 18294-87-6 1-cyclohexenylacetic acid 
• 108-86-1 bromobenzene 

Downstream Products

• 40452-20-8 phenanthrene-2-carboxylic acid 
• 221-11-4 13H-naphtho[2,1-a]carbazole 
• 3366-65-2 2-aminophenanthrene 
• 1188094-10-1 phenanthrene-2-ylboronic acid 

Relevant academic research and scientific papers

Alumina-Mediated π-Activation of Alkynes

The ability to induce powerful atom-economic transformation of alkynes is the key feature of carbophilic π-Lewis acids such as gold- and platinum-based catalysts. The unique catalytic activity of these compounds in electrophilic activations of alkynes is explained through relativistic effects, enabling efficient orbital overlapping with π-systems. For this reason, it is believed that noble metals are indispensable components in the catalysis of such reactions. In this study, we report that thermally activated γ-Al2O3activates enynes, diynes, and arene-ynes in a manner enabling reactions that were typically assigned to the softest π-Lewis acids, while some were known to be triggered exclusively by gold catalysts. We demonstrate the scope of these transformations and suggest a qualitative explanation of this phenomenon based on the Dewar-Chatt-Duncanson model confirmed by density functional theory calculations.

Facile Synthesis of Polycyclic Aromatic Hydrocarbons: Br?nsted Acid Catalyzed Dehydrative Cycloaromatization of Carbonyl Compounds in 1,1,1,3,3,3-Hexafluoropropan-2-ol

The cycloaromatization of aromatic aldehydes and ketones was readily achieved by using a Br?nsted acid catalyst in 1,1,1,3,3,3-hexafluoropropan-2-ol (HFIP). In the presence of a catalytic amount of trifluoromethanesulfonic acid, biaryl-2-ylacetaldehydes and 2-benzylbenzaldehydes underwent sequential intramolecular cationic cyclization and dehydration to afford phenacenes and acenes, respectively. Furthermore, biaryl-2-ylacetaldehydes bearing a cyclopentene moiety at the α-position underwent unprecedented cycloaromatization including ring expansion to afford triphenylenes. HFIP effectively promoted the cyclizations by suppressing side reactions presumably as a result of stabilization of the cationic intermediates.

PROTON-TRANSLOCATING COMPOUND, PROTON-TRANSLOCATING MATERIAL COMPOSITION, ELECTRONIC DEVICE AND PROTON-TRANSLOCATING ELECTROLYTE FILM

PROBLEM TO BE SOLVED: To provide a proton-translocating compound and a proton-translocating material composition which are capable of maintaining a liquid crystal phase in a wide temperature range and thereby function in a wide temperature range, and various electronic devices using the compound or composition. SOLUTION: The proton-translocating compound is represented by the general formula (1) in the figure. COPYRIGHT: (C)2015,JPOandINPIT

HYDROXYPHENYLTRIAZINES WITH AN AROMATIC CARBOCYCLIC FUSED RING SYSTEM

The instant invention relates to novel hydroxyphenyl triazine UV-absorbers with an aromatic carbocyclic fused ring system having a long wavelength shifted absorption spectrum with significant absorbance up to 420 nm. Further aspects of the invention are a process for their preparation, a UV stabilized composition containing the new UV-absorbers, a process for the stabilization of organic materials and the use of the new compounds as UV-light stabilizers for organic materials.

Effects of hindered internal rotation on packing and conductance of self-assembled monolayers

Self-assembled monolayers of 4-thiobiphenyl and 2-thiophenanthrene molecules on Au{111} were probed using scanning tunneling microscopy (STM) to investigate their assembled order, to measure the conductance through them, and to determine what molecular features are necessary for molecules to exhibit conductance switching. The 4-thiobiphenyl molecules assemble into two distinct packing structures, whereas no order is observed for 2-thiophenanthrene. Both molecules show rectifying behavior, but although 4-thiobiphenyl is more conductive at positive sample biases, 2-thiophenanthrene is more conductive at negative sample bias. Individual molecules of each type were also inserted into alkanethiol SAMs and tracked over several hours to investigate the conductance states of each molecule. Both molecules exhibit two conductance states, indicating that internal ring rotation is not required for conductance switching.

A New and Simple Synthesis of Phenanthrenes

Cyclohexene-1-acetic acid (1) undergoes reaction with various aromatic substrates (2a-k) in the presence of concentrated sulfuric acid to give 1,2,3,4,4a,10a-hexahydro-9-(10H)-phenanthrenones (3a-k) which on dehydrogenation with Pd-C afford the corresponding phenanthrenes (4a-k) in high yields.