Results 181 to 190 of about 1,405,714 (262)

Cobalt-Catalyzed Intramolecular C─H Silylation of Arenes. [PDF]

open access: yesAngew Chem Int Ed Engl
Xu Y   +4 more
europepmc   +1 more source

Water, Alcohols, Amines, and Amides as Formal Hydrogen‐Atom‐Transfer Reagents Through Activation With Redox‐Active Lewis Acids

open access: yesAngewandte Chemie, EarlyView.
Protic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Petra Vojáčková, Armido Studer
wiley   +2 more sources

Cobalt-Catalyzed Asymmetric Construction of Boron Stereocenters With C-N Axial Chirality. [PDF]

open access: yesAdv Sci (Weinh)
Kumaran S   +5 more
europepmc   +1 more source

Metal–Metal Cooperative C─F and S─F Bond Cleavage by Low‐Valent Tetracobalt Clusters and Water‐Assisted Fluoroarene Hydrodefluorination

open access: yesAngewandte Chemie, EarlyView.
Self‐assembled tetrahedral CoI4 clusters supported by simple bipyridine‐based ligands undergo core rearrangement to cleave S─F and C(sp2)─F bond, forming fluoride‐bridged tetracobalt(II)‐oxo clusters, while exposure of cobalt(I) clusters to molecular oxygen yields cubane‐type cobalt(III) oxo clusters.
Hoan M. Dinh   +4 more
wiley   +2 more sources

1,2‐Bis(boronate) Arenes by Borylation Directed Borylation

open access: yesAngewandte Chemie, EarlyView.
Boron electrophiles derived from tetrabromo‐pyrazaboles and AlCl3 affect the regioselective vicinal double C–H borylation of a range of arenes and polycyclic aromatic hydrocarbons (PAHs). A subsequent pinacol installation step then affords the vicinal bis‐boronate ester‐substituted arene/PAH.
Anna V. Schellbach   +4 more
wiley   +2 more sources

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

open access: yesAngewandte 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   +8 more
wiley   +2 more sources

Induction of Methuosis in Breast Cancer Stem Cells by a Cobalt(III) Complex Evokes Immunotherapeutic Response

open access: yesAngewandte Chemie, EarlyView.
Cancer stem cells (CSCs) drive metastasis, relapse and resist conventional apoptosis‐inducing chemotherapies. We report a cobalt(III)‐cyclam complex with pyrene and diflunisal moieties that reduces the viability of breast CSCs at low micromolar concentrations.
Jiaxin Fang   +7 more
wiley   +2 more sources

Upcycling Spent LiCoO<sub>2</sub> Cathodes via Surface Spinel Reconstruction for Efficient Furfural Hydrogenation. [PDF]

open access: yesChemSusChem
Itri GM   +9 more
europepmc   +1 more source

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