42834-34-4

Basic information

• Product Name: 1-(4-pyridyl)-2-(4-bromophenyl)ethylene
• Synonyms: 1-(4-pyridyl)-2-(4-bromophenyl)ethylene
• CAS NO: 42834-34-4
• Molecular Weight: 260.133
• Mol File: 42834-34-4.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: 1-(4-pyridyl)-2-(4-bromophenyl)ethylene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(4-pyridyl)-2-(4-bromophenyl)ethylene(42834-34-4)
• EPA Substance Registry System: 1-(4-pyridyl)-2-(4-bromophenyl)ethylene(42834-34-4)

Safety Data

• Hazardous Substances Data: 42834-34-4(Hazardous Substances Data)

Upstream product

• 872-85-5 pyridine-4-carbaldehyde 
• 38186-51-5 diethyl (4-bromobenzyl)phosphonate 
• 589-17-3 p-bromobenzyl chloride 
• 100-43-6 4-vinylpyridine 
• 106-37-6 1.4-dibromobenzene 
• 5467-74-3 4-Bromophenylboronic acid 
• 589-87-7 1,4-bromoiodobenzene 
• 589-15-1 1-bromomethyl-4-bromobenzene 
• 106-38-7 para-bromotoluene 
• 51044-13-4 4-bromobenzyl triphenylphosphonium bromide 
• 108-89-4 picoline 
• 1122-91-4 4-bromo-benzaldehyde 

Downstream Products

• 1246993-71-4 rac-4,4'-((1R,2R,3S,4S)-2,4-bis(4-bromophenyl)cyclobutane-1,3-diyl)dipyridine 
• 138517-20-1 1-(4-bromophenyl)-2-(4-pyridyl)acetylene 
• 25514-83-4 trans-4'-bromo-4-stilbazole methiodide 

Relevant articles and documents

Palladium anchored on guanidine-terminated magnetic dendrimer (G3-Gu-Pd): An efficient nano-sized catalyst for phosphorous-free Mizoroki-Heck and copper-free Sonogashira couplings in water

In this research, a novel type of Fe3O4&at;silica-supported dendrimer capped by guanidine groups for immobilization of palladium was reported. This novel nano-sized catalyst was characterized by FTIR, TGA, XRD, FESEM, EDX, VSM, XPS and HRTEM methods. Enhanced catalytic activity of the prepared catalyst in Mizoroki-Heck and copper-free Sonogashira coupling reactions were evaluated in water as a green solvent. The influence of the various reaction parameters such as catalyst dosage, time and temperature on two mentioned C–C coupling reactions were studied. Results showed that the catalyst could be easily recovered by simple separation by an external magnet and reused for five cycles of recovery without considerable losing of its activity.

A new insight into the push-pull effect of substituents via the stilbene-like model compounds

In this paper, authors report on 1-pyridyl-2-arylethenes, 1-furyl-2-arylethylenes, 1,2-diphenylpropylenes and substituted cinnamyl anilines as stilbene-like model compounds to investigate the factors dominating the push-pull effect of substituents via usi

[2+2] Photodimerization of Stilbazoles Promoted by Oxalic Acid in Suspension

In this study, a very simple technique to perform efficiently photodimerization of some vinylpyridines is reported. By irradiating a stirred mixture of several stilbazoles with solid oxalic acid dihydrate dispersed in a nonpolar (i.e., cyclohexane) or moderately polar (benzene, dichloromethane, dioxane) solvent, the corresponding dimeric cyclobutane adducts were obtained in high yields and excellent regio- and stereoselectivities. The strategy could also be applied successfully to oily, waxy, or even insoluble stilbazoles. Moreover, the oxalic acid loading could be lowered to substoichiometric amounts. When further optimizations were needed, our strategy was found to be highly flexible to identify other oligocarboxylic acids as alternative additives to improve, or even overturn, the regioselectivity. Oxalic acid and other oligocarboxylic acids were found to be capable of orienting more than 50 stilbazoles toward photodimerization under these conditions.