737796-39-3

Upstream product

• 18162-48-6 tert-butyldimethylsilyl chloride 
• 427879-53-6 (Z)-[4'-(2-biphenyl-4-yl-vinyl)-biphenyl-4-yl]methanol 
• 875634-78-9 (E)-[4'-(2-biphenyl-4-ylvinyl)-biphenyl-4-ylmethoxy]-tert-butyldimethylsilane 
• 87736-74-1 4-(tert-butyldimethylsiloxymethyl)bromobenzene 
• 353739-79-4 (Z)-1-[2-(4-bromo-phenyl)]-biphenyl-ethene 
• 873-75-6 4-bromobenzenemethanol 
• 589-15-1 1-bromomethyl-4-bromobenzene 
• 51044-13-4 4-bromobenzyl triphenylphosphonium bromide 

Downstream Products

• 427879-64-9 (Z)-1-benzyl-3-[4'-(2-biphenyl-4-yl-vinyl)-biphenyl-4-ylmethyl] urea 
• 427879-63-8 (Z)-2-[4'-(2-biphenyl-4-yl-vinyl)-biphenyl-4-ylmethyl]isoindole-1,3-dione 
• 427879-56-9 (Z)-1-[4'-(2-biphenyl-4-yl-vinyl)-biphenyl-4-yl]methyl isocyanate 
• 427879-54-7 (Z)-1-[4'-(2-biphenyl-4-yl-vinyl)-biphenyl-4-yl]methylamine 

Relevant academic research and scientific papers

Intramolecularly sensitized precipitons: A model system for application to metal sequestration

We have investigated light-triggered or catalytically activated precipitation agents and have proposed the name "precipiton" for such molecules or molecular fragments. A phase separation Is induced when the precipiton isomerizes to a low-solubility form.

Precipiton reagents: Precipiton phosphines for solution-phase reductions

(Equation Presented) Several Precipiton phosphines were prepared and employed in the Staudinger reaction and in the reduction of secondary ozonides. Both amines and aldehdyes were obtained in good to excellent yields and purities. After use of the phosphine, isomerization and precipitation of the spent phosphorus reagent were induced by exposure to visible light in the presence of erythrosin B, a triplet sensitizer. Products were isolated by simple filtration. The use of the triplet sensitizer has the added advantage of eliminating [2 + 2] cycloaddition reactions between trans-Precipitons.

Use of precipitons for copper removal in atom transfer radical polymerization [1]

The use of precipitons for copper removal in atom transfer radical polymerization (ATRP) was discussed. Nitrogen ligands bearing precipitons were prepared and used to mediate ATRP. The results showed that the precipiton-bound ligands successfully mediated

A photoactivated precipiton for reagent sequestration in solution-phase synthesis

Precipitons are molecular phase tags for chemical separations. They can be switched from a high-solubility to a low-solubility state to facilitate product, reagent, or catalyst isolation. This paper presents the first photoactivated precipiton and demonstrates that this precipiton is an efficient amine scavenging agent in solution-phase syntheses of amides, ureas, and imines. This approach to amine scavenging offers advantages over solid-phase scavenging methods. The amine is captured in a homogeneous medium, so the capture is much faster than seen with isocyanate resins, and only a small excess of the scavenger is required. Copyright