Results 101 to 110 of about 4,472,736 (328)

Toward Enhancing Chiro‐Optical and Magneto‐Optical Properties of Magnetic Nanocrystals by Surface Plasmons

Advanced Optical Materials, EarlyView.
Here, recent progress is highlighted in colloidal magnetoplasmonic hybrid nanomaterials, with a focus on chiral plasmonics. Metal nanocrystals with intrinsic chiroptical features can lead to a combination of chiral plasmonics and magneto‐optics effects when interacting with the magnetic counterpart, offering a foundation for systematically designing ...
Miguel Comesaña‐Hermo, Eloi Haltz, Alessio Gabbani, Francesco Pineider, Verónica Salgueiriño   +4 more
wiley   +1 more source

FAST AND PERMANENT CHANGES IN PREPARATIVE AND PHARMACEUTICAL CHEMISTRY THROUGH MULTICOMPONENT REACTIONS AND THEIR 'LIBRARIES' [PDF]

, 1995
Ivar Ugi
openalex   +1 more source

Multicomponent Reactions in Polymer Science [PDF]

Macromolecular Rapid Communications, 2021
Michael A. R. Meier, Rongrong Hu, Ben Zhong Tang   +2 more
openaire   +4 more sources

Dual Lewis Acid Promoted/Visible Light Driven Preparation of Aryl Diazenyl Oxazoles from Isocyanoacetamides and Arylazo Sulfones

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract While arylazo sulfones have been widely applied as arylating agents, their exploitation for diazenylation reactions has been previously limited to electron‐rich alkenes such as styrenes and silyl enol ethers. Herein we optimized a synthetic one‐pot protocol to access oxazolyl azo compounds via a selective domino ring‐closing/aryldiazenylation ...
Enzo Delalande, Lorenzo di Terlizzi, Camilla Russo, Carmine Volpe, Stefano Protti, Mariateresa Giustiniano   +5 more
wiley   +1 more source

Isocyanide-based multicomponent reactions towards cyclic constrained peptidomimetics

Beilstein Journal of Organic Chemistry, 2014
In the recent past, the design and synthesis of peptide mimics (peptidomimetics) has received much attention. This because they have shown in many cases enhanced pharmacological properties over their natural peptide analogues.
Gijs Koopmanschap, Eelco Ruijter, Romano V.A. Orru   +2 more
doaj   +1 more source

MCR XXIII. THE HIGHLY VARIABLE MULTIDISCIPLINARY PREPARATIVE AND THEORETICAL POSSIBILITIES OF THE UGI MULTICOMPONENT REACTIONS IN THE PAST, NOW, AND IN THE FUTURE Dedicated to Professor Jiiri Kann on the occasion of his 60th birthday [PDF]

, 1998
I Ugi
openalex   +1 more source

Multiphoton Multicomponent Reactions: Discovery of the 2‐Photon Ketene 4‐Component Reaction (2P‐K‐4CR)

Advanced Synthesis &Catalysis, EarlyView.
Multicomponent reactions triggered by multiple photons: complex heterocycles can be synthesized in a regio‐ and stereoselective manner via a double photoactivation using visible light from simple building blocks, exploiting the combination of ketene 3‐component reaction and Paternò–Büchi cycloaddition.
Federica Minuto, Martina Buccioli, Pietro Capurro, Barbara Benedetti, Pavlo Solokha, Serena De Negri, Davide Ravelli, Andrea Basso   +7 more
wiley   +1 more source

Asymmetric Synthesis of Highly Substituted Spiro[2H‐pyrrole‐2,3‐Succinimide] Derivatives by Copper‐Catalyzed Post‐Ugi Reactions

Advanced Synthesis &Catalysis, EarlyView.
Abstract Herein we present a novel one‐pot methodology for the synthesis of enantioenriched 2H‐pyrrolespirosuccinimides by copper‐catalyzed reactions on Ugi adducts derived from enantiopure α‐alkylbenzyl amines through a chirality transfer process. We have proposed a mechanism, supported by density functional theory (DFT) calculations, where a hydrogen
Javier Gómez‐Ayuso, Israel Carreira‐Barral, Roberto Quesada, María García‐Valverde   +3 more
wiley   +1 more source

Multicomponent reactions with organoboron compounds

, 2015
Organoboron reagents, especially boronic acids and boronates, have been widely explored as suitable and powerful reagents for the formation of new C–C bonds in organic synthesis, medicinal chemistry and material science. Since these species have been the center of numerous studies giving rise to a complete area of investigation, we give a brief ...
Marqués-López, Eugenia, Herrera, Raquel P.   +1 more
openaire   +3 more sources

Three‐Component Synthesis of γ‐Amino Esters with α‐Quaternary Carbon Centers via NHC/Photoredox Dual Catalysis

Advanced Synthesis &Catalysis, EarlyView.
γ‐Amino acid derivatives with an α‐quaternary center are prevalent in medicinally important compounds. A dual N‐heterocyclic carbene/photocatalytic pathway is developed for the three‐component synthesis of α, α ‐disubstituted γ‐amino esters. This methodology allows for the rapid synthesis of diverse libraries of γ‐amino esters in good yields.
Adam X. Wayment, Karl A. Scheidt
wiley   +1 more source