Results 131 to 140 of about 214,725 (249)

Evidence for a Cu(II)‐Catalysed CuAAC Reaction: A Combined Experimental and Computational Study

open access: yesAngewandte Chemie, EarlyView.
A new mechanistic pathway for the CuAAC reaction has been found to operate under specific reaction conditions. The pathway is catalysed by Cu(II) through a self‐assembled dinuclear Cu(II) complex that incorporates the triazole product. Computational analysis and assessment of generality are reported.
Matthew J. Andrews   +12 more
wiley   +2 more sources

Beyond Simple Mimicry: Next‐Generation Geometric Architectures and Future Paradigms in Small‐Molecule and Macrocyclic Peptidomimetics

open access: yesAngewandte Chemie, EarlyView.
Peptide‐to‐Small Molecule Paradigm: Peptidomimetics have evolved from simple mimicry toward drug‐like scaffolds supported by increasing clinical successes. This Perspective highlights the geometric design principles—linear repetition, convergent fusion, and cyclization—defining the next‐generation peptidomimetic architectures capable of targeting ...
Jesang Lee   +5 more
wiley   +2 more sources

Additive-driven microwave crystallization of tyramine polymorphs and salts: a quantum crystallography perspective. Corrigendum. [PDF]

open access: yesIUCrJ
Grabowski S   +7 more
europepmc   +1 more source

[O─I─O]+ Halogen‐Bonded Complexes of Pyridine N‐Oxides

open access: yesAngewandte Chemie, EarlyView.
The missing puzzle of 3‐center‐4‐electron halogen‐bonded complexes viz. [O─I─O]+ of pyridine N‐oxides are structurally characterized by x‐ray diffraction. Monodentate N‐oxide O‐atom acts as the halogen bond acceptor. Their solution complexations are characterized by 15N NMR spectroscopy.
Rakesh Puttreddy   +3 more
wiley   +2 more sources

Kinetically Stable Boron‐Heteroatom Bonds

open access: yesAngewandte Chemie, EarlyView.
This study investigates the kinetic stability of boron‐heteroatom bonds in N‐methyliminodiacetic acid (MIDA) boronates. The hemilabile nature of the ligand enables the synthesis of molecules that would otherwise be considered too hydrolytically labile. Depending on the structure, acid‐promoted migration of the boryl group was found to produce compounds
Alina Trofimova   +8 more
wiley   +2 more sources

The evolving role of structural biology in pharma: integration of X-ray crystallography, cryo-electron microscopy and beyond. [PDF]

open access: yesActa Crystallogr D Struct Biol
Chrencik JE   +44 more
europepmc   +1 more source

Reactions of Terminal Olefins With Iron Carbenes

open access: yesAngewandte Chemie, EarlyView.
Iron carbenes react with terminal olefins and show productive metathesis or metathesis‐divergent pathways depending on the nature of the olefin. Reactions proceed through 2π + 2π cycloadditions to generate transient metallacyclobutane intermediates that undergo cycloreversion to generate the metathesis product or the metathesis‐divergent β‐hydride ...
Zachary S. Lincoln   +2 more
wiley   +2 more sources

Crystallography-inspired hierarchical multiscale mechanical metamaterials. [PDF]

open access: yesNPJ Metamater
Cai J   +5 more
europepmc   +1 more source

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