Results 161 to 170 of about 358,569 (255)

Catalytic enantioselective synthesis of 1,4-dihydropyridines via the addition of C(1)-ammonium enolates to pyridinium salts. [PDF]

Chem Sci, 2021
McLaughlin C, Bitai J, Barber LJ, Slawin AMZ, Smith AD.   +4 more
europepmc   +1 more source

Regioselective nucleophilic addition to pyridinium salts: a new route to substituted dihydropyridones.

, 2009
The regioselective addition of nucleophiles to pyridinium salts generates an intermediate enol-ether, which can be hydrolyzed in situ to provide a range of dihydropyridones.
Walton, L, Donohoe, Timothy, Donohoe, TJ, Connolly, MJ   +3 more
core   +1 more source

Synthesis of pyridinium salts - new catalysts phase transfer

, 1997
Neste trabalho foi preparada uma série de sais de piridínio, com subsequente investigação da sua atividade catalítica e indução assimétrica em reações de adição de Michael e alquilações de metilenas ativas.
Angélica Maria Lucchese, Lucchese, Angélica Maria   +1 more
core  

Divergent reactivity of sulfinates with pyridinium salts based on one- versus two-electron pathways. [PDF]

Chem Sci, 2021
Kim M, You E, Park S, Hong S.
europepmc   +1 more source

Quadratic nonlinear optical properties of novel pyridinium salts

, 2003
A number of novel salts of dipolar cations containing dimethylamino electron donor and pyridinium electron acceptor groups have been prepared and studied by using various physical techniques including hyper-Rayleigh scattering and Stark ...
Brunschwig, Bruce S., Orduna, Jesus, Coe, Benjamin J., Harris, James A., Persoons, Andre, Asselberghs, Inge, Clays, Koen, Garin, Javier, Wostyn, Kurt, Jones, Lathe A.   +9 more
core   +1 more source

Skeletal remodeling of chalcone-based pyridinium salts to access isoindoline polycycles and their bridged derivatives. [PDF]

Chem Sci, 2021
Wang L, Han H, Gu L, Zhang W, Zhao J, Wang Q.   +5 more
europepmc   +1 more source

Structure-Activity Relationships of Hemocompatible Cationic 6-Azaindole Pyridinium Salts: Antimicrobial and Anticancer Activity. [PDF]

Molecules
Ciorteanu R, Marinas IC, Ciobanu CI, Mangalagiu II, Danac R.   +4 more
europepmc   +1 more source

Selective Reductions of Complex Pyridines via <i>N</i>Tf-Pyridinium Salts. [PDF]

Synthesis (Stuttg)
Josephitis CM, McNally A.
europepmc   +1 more source

Metal-free pyridinium salts with strong room-temperature phosphorescence and microsecond radiative lifetime. [PDF]

Chem Sci
Hakkarainen E, Lin HC, Nechaev AA, Peshkov VA, Eskelinen T, Chang KH, Liao TH, Chen PY, Koshevoy IO, Lin HW, Chou PT, Belyaev A.   +11 more
europepmc   +1 more source

Alkyl Tail Variation on Chalcone-Based Quaternary Pyridinium Salts as Rule-of-Thumb for Antimicrobial Activity. [PDF]

Arch Pharm (Weinheim)
Seghetti F, Ocello R, Bisi A, Masetti M, Gobbi S, Falchi F, Gentilomi GA, Bonvicini F, Belluti F.   +8 more
europepmc   +1 more source