Results 231 to 240 of about 55,695 (341)

Boron‐Doped Polycyclic Aromatic Hydrocarbons: Synthesis and Functional Properties

open access: yesChemistryEurope, EarlyView.
Herein, recent research on boron‐containing polycyclic aromatic hydrocarbons (B‐PAHs) is presented with particular emphasis on their synthesis. Covered compound classes include kinetically shielded, methylene‐tethered, and fully fused B‐PAHs as well as borata‐arenes and carbene‐stabilized B‐PAHs. In the last part, functional properties originating upon
Matthias Schnitzlein, Frank Würthner
wiley   +1 more source

“On Water” Photochemistry: Visible‐Light‐Induced Synthesis of Diaryl Sulfides by Nitrogen Extrusion

open access: yesChemistryEurope, EarlyView.
This study demonstrates an efficient and versatile blue light‐mediated synthesis of dissymmetric diaryl sulfides by nitrogen photoextrusion from diarylazo sulfides. The reaction is carried out “on water” without the need for (photo)catalysts or additives.
Hawraz Ibrahim M. Amin   +4 more
wiley   +1 more source

Preparation of Enantioenriched Spirocyclic Scaffolds Transferring Axial Chirality from Borylalkylidenecycloalkanes

open access: yesChemistryEurope, EarlyView.
Enantiomerically enriched borylalkylidenecycloalkanes can transfer axial chirality to spirocyclic compounds with central chirality, without erosion of enantiomeric ratio. The method involves cyclopropanation, borylcyclopropanation, epoxidation, and aziridination reactions, that proceed in astereodivergent manner giving access to spirocycles with ...
Nerea Iragorri   +4 more
wiley   +1 more source

Nitrogen‐Centered Radical‐Directed C(sp3)−H Amination and Aminoalkylation Using (Diarylmethylene)amino Benziodoxolones

open access: yesChemistryEurope, EarlyView.
This report describes a C(sp3)−H aminofunctionalization via the photoexcitation of (diarylmethylene)amino benziodoxolones. These iodine reagents act as both single‐electron oxidants and nitrogen‐based SOMOphiles, serving as iminyl radicals, enabling the site‐selective C(sp3)−H amination and aminoalkylation of α‐aminoxy acid derivatives.
Kensuke Kiyokawa   +5 more
wiley   +1 more source

Migrating Group Strategy for Remote Functionalization of Seven-Membered Rings. [PDF]

open access: yesJ Am Chem Soc
Han W   +6 more
europepmc   +1 more source

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