The electrophilic behavior of the reactive entity in the phtosubstitution of benzenes with 2-iodopyridine was found to be ascribable to the intermediary 2-pyridyl cation, rather than to the electrophilic 2-pyridyl radical.
Synthesis of Vinylphenylpyridine and Living Anionic Polymerization
申请人:Lee Jae-Suk
公开号:US20090105416A1
公开(公告)日:2009-04-23
Provided are a vinyl-biphenylpyridine monomer and a polymer thereof. More particularly, the present invention provides a vinyl-biphenylpyridine monomer having a side chain of pyridine or phenylpyridine as a functional group, a homopolymer of which molecular weight and molecular weight distribution are controlled using the monomer, and a block copolymer of which molecular structure and molecular weight are controlled to facilitate synthesis of an organic metal complex. Accordingly, the present invention provides a vinyl-biphenylpyridine monomer and a polymer thereof which are effectively used as nano and optical functional materials.
dine (13) were prepared from readily available pyridine precursors by standard coupling reactions. Pyrolysis of 10 at 810 °C/0.5 Torr provided benzo[f]isoquinoline (45) and the benzopentalene dimer 47. Pyrolysis of 11 (820 °C/0.5 Torr) afforded benzo[f]quinoline (50), benzo[h]isoquinoline (52), and a mixture of isomers of 47. Pyrolysis of 13 (820 °C/0.3 Torr) provided benzo[h]quinoline (56) and the
[EN] IMIDAZO-PYRIMIDINE DERIVATIVES AS LIGANDS FOR GABA RECEPTORS<br/>[FR] DERIVES D'IMIDAZO-PYRIMIDINE COMME LIGANDS POUR LES RECEPTEURS GABA
申请人:MERCK SHARP & DOHME
公开号:WO2002074773A1
公开(公告)日:2002-09-26
A class of 3-phenylimidazo[1,2-a]pyrimidine derivatives, substituted at the meta position of the phenyl ring by an optionally substituted aryl or heteroaryl group which is directly attached or bridged by an oxygen atom or a -NH- linkage, and further substituted on the phenyl ring by alkyl, trifluoromethyl, alkoxy or one or two halogen atoms, especially fluoro, are selective ligands for GABAA receptors, in particular having good affinity for the a2 and/or a3 and/or a5 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of adverse conditions of the central nervous system, including anxiety, convulsions and cognitive disorders.
Synthesis of vinylphenylpyridine and living anionic polymerization
申请人:Gwangju Institute of Science and Technology
公开号:US08110642B2
公开(公告)日:2012-02-07
Provided are a vinyl-biphenylpyridine monomer and a polymer thereof. More particularly, the present invention provides a vinyl-biphenylpyridine monomer having a side chain of pyridine or phenylpyridine as a functional group, a homopolymer of which molecular weight and molecular weight distribution are controlled using the monomer, and a block copolymer of which molecular structure and molecular weight are controlled to facilitate synthesis of an organic metal complex. Accordingly, the present invention provides a vinyl-biphenylpyridine monomer and a polymer thereof which are effectively used as nano and optical functional materials.