Results 141 to 150 of about 14,359 (248)

Organocatalytic Enantioselective Addition of Malonates to Cyclic Imines: A Short Total Synthesis of Tetraponerine T‐1

Angewandte Chemie, EarlyView.
A stereoselective functionalization method of cyclic imines under mild organocatalytic conditions was developed. Bifunctional cinchona alkaloid catalysts combined with carefully optimized reaction conditions to suppress background reactivity enabled highly enantio‐ and diastereoselective addition reactions of malonates to cyclic imines.
Frederic Kölblin, Helma Wennemers
wiley   +2 more sources

Photoinduced Multicomponent Difluoromethylation of Imines via Iron-Mediated Ligand-to-Metal Charge Transfer. [PDF]

Org Lett
Choi H, Lee J, Lee SB, Han S, Jang J, Hong S.   +5 more
europepmc   +1 more source

Covalent Organic Framework Colloids With Core‐Shell Donor/Acceptor Architecture and Ultralong‐Lived Charge‐Separated States

Angewandte Chemie, EarlyView.
Uniform core‐shell colloidal particles of Covalent Organic Frameworks (COFs) are synthesized by a seeded growth of electron‐acceptor COF shells on electron‐donor COF cores. The resulting p‐n heterojunction enables efficient separation of photogenerated charges, which persist for minutes. These core‐shell COFs show efficient CO2 photoreduction to CO and
Ting Yu, Cory Ruchlin, Tong Li, Mohammad Hossein Gohari, Zhechang He, Zeina Chamseddine, Chang Wan Kang, Dongling Ma, Dmytro F. Perepichka   +8 more
wiley   +2 more sources

Peptidthioester und Peptidtriazolderivate durch Duale Modifikation von Peptidthiosulfonaten auf dem Harz

Angewandte Chemie, EarlyView.
Es wird eine Strategie zur dualen Modifikation von Peptiden auf der Festphase vorgestellt, die die S‐Alkinylierung von Peptidthiosulfonaten und eine regioselektive, iridiumkatalysierte Azid‐Thioalkin‐Zykloaddition umfasst. Dieses Verfahren ermöglicht zuverlässig den Zugang zu Peptiden mit komplexen, nicht‐kanonischen Modifikationen und ist mit ...
Marius Werner, Agnes Bergmann, Chenxi Liu, Mira Behnam, Christian Klein, Franziska Thomas   +5 more
wiley   +1 more source

NMR spectroscopic and computational analysis of <i>E</i>/<i>Z</i> isomerism in imines derived from isatin. [PDF]

RSC Adv
Gonzalez-Oñate A, Chaparro D, Quevedo R, Alí-Torres J, Flores-Gaspar A.   +4 more
europepmc   +1 more source

Induction and Stabilization of Peptide Alpha‐Helices on Silica Nanoparticles

Angewandte Chemie, EarlyView.
Covalent docking turns silica nanoparticles (SNPs) into α‐helix‐stabilizing surfaces. Dynamic imine formation allows peptides with lysine residues aligned on one helical face to adapt to the surface before reduction locks the structure in place, while preserving the opposite face for functional recognition.
Fidel Lozano‐Elena, Seyed Amirabbas Nazemi, Patrick Shahgaldian, Sebastian Wendeborn   +3 more
wiley   +2 more sources

Cobalt-Catalyzed Migratory E-Selective Asymmetric Aza-Nozaki-Hiyama-Kishi Coupling. [PDF]

Angew Chem Int Ed Engl
Wang Y, Luo Y, Wu L, Chen J, Duan M, Rasool A, Wang Y, Zhu S.   +7 more
europepmc   +1 more source

TADF‐Active Tetrazole Luminophores for Visible‐Light Functionalization of Nanoparticles and Surfaces

Angewandte Chemie, EarlyView.
A series of tetrazoles are reported that undergo 1,3‐dipolar cycloadditions with alkene and alkyne substrates, generating (dihydro)pyrazole products that exhibit thermally activated delayed fluorescence (TADF). The “photo‐click” reactivity of these tetrazoles is leveraged to functionalize nanoparticles and surfaces with TADF‐active chromophores ...
Ryoga Hojo, Katrina Bergmann, Siyuan L. Xie, Connor S. Durfy, William L. Primrose, Athan T. Gogoulis, Seja A. Elgadi, Mitchell J. Demchuk, Thomas Kalab, Peiqi Hu, Eva M. Nichols, Zachary M. Hudson   +11 more
wiley   +2 more sources

Beyond canonical asymmetric induction in phosphine organocatalysis. [PDF]

RSC Adv
Vijayakumar A, Krishna RB, Manod M, Appus A, Mohan C.   +4 more
europepmc   +1 more source

Benzophenone Imine [PDF]

Synlett, 2006
openaire   +1 more source