219323-82-7Relevant academic research and scientific papers
Triarylbismuthanes as threefold aryl-transfer reagents in regioselective cross-coupling reactions with bromopyridines and quinolines
Rao, Maddali L.N.,Dhanorkar, Ritesh J.
, p. 5214 - 5228 (2014)
Cross-coupling studies using bromopyridines and bromoquinolines with triarylbismuths as threefold coupling reagents in substoichiometric amounts under Pd-catalysed conditions are disclosed. The reactivity was high with both mono- and dibromopyridyl substrates, and mono- and bis-couplings were carried out regioselectively. A library of monoaryl and diaryl pyridines was formed in high yields. A one-pot strategy provided a simple and straightforward synthesis of both symmetrical and unsymmetrical diarylpyridines. Arylations of 2-bromo- and 3-bromoquinolines were achieved with triarylbismuth reagents. This study demonstrates that triarylbismuths may be used as threefold arylating reagents for the synthesis of aryl pyridines and quinolines through couplings with bromopyridines and bromoquinolines under Pd-catalysed conditions. Copyright
Synthesis of biaryl-styrene monomers by microwave-assisted Suzuki coupling
Zayas, Hazit A.,Bowyer, Michael C.,Gordon, Christopher P.,Holdsworth, Clovia I.,McCluskey, Adam
, p. 5894 - 5895 (2009)
Biaryl-styrenic monomers are prepared via Suzuki coupling as functional monomers in the synthesis of molecularly imprinted polymers. Traditional thermal Suzuki approaches are hampered by competition between Suzuki, Heck and homo-coupling reactions. Microw
Novel amphiphilic homopolymers containing meta- and para-pyridine moieties with living characteristics and their self-assembly
Hur, Yoon-Hyung,Kang, Nam-Goo,Kang, Beom-Goo,Yu, Yong-Guen,Changez, Mohammed,Lee, Jae-Suk
, p. 3458 - 3469 (2013/07/26)
Amphiphilic monomers containing the isomeric pyridine moieties 3-(4-vinylphenyl)pyridine (3VPPy) and 4-(4-vinylphenyl)pyridine (4VPPy) were synthesized using the Suzuki coupling reaction. A living anionic polymerization of 3VPPy and 4VPPy was successfully performed under various conditions to overcome the limitations of anionic polymerization and to compare their properties with those of poly(2-(4-vinylphenyl)pyridine) as reported previously. Several characteristics of the resulting isomeric P3VPPy and P4VPPy were studied, such as thermal stability, solubility, and the living nature. The block copolymerization of 4VPPy with 2-vinylpyridine and MMA was carried out without additive to estimate the nucleophilicity of P4VPPy and to confirm its living nature. Additionally, each amphiphilic homopolymer of P3VPPy and P4VPPy containing both a hydrophilic pyridine unit and a hydrophobic styrene unit was tested for self-assembly behavior in a mixed solvent (THF/water) and monitored with TEM and SEM.
