Results 41 to 50 of about 22,861 (258)
Selective C(sp3)–H Arylation/Alkylation of Alkanes Enabled by Paired Electrocatalysis [PDF]
, 2023 We report a combination of electrocatalysis and photoredox catalysis to perform selective C(sp3)–H arylation/alkylation of alkanes for the first time, in which a binary catalytic system based on earth-abundant iron and nickel is applied.
Rui, Sun +3 more
core +1 more source
Cobalt‐Catalyzed C─N Bond Formation via Metal‐Hydride Hydrogen Atom Transfer (MHAT)
Angewandte Chemie, EarlyView.Cobalt‐catalyzed metal‐hydride hydrogen atom transfer (Co‐MHAT) converts simple alkenes into C─N bonds under mild, near‐neutral conditions. A shared Co─H‐initiated radical/organocobalt intermediate is channeled into radical trapping, radical‐polar crossover, or radical ligand transfer, unifying hydroamination, hydroazidation, hydroamidation, and remote
Arman Khosravi, Ming‐Yu Ngai
wiley +2 more sources
An Unexpected Reaction between Diaryliodonium Salts and DMSO
Organics, 2022 Diaryliodonium salts are useful arylating reagents that have been exploited widely. In this Communication, we demonstrate that heating diphenyliodonium triflate in the solvent DMSO leads to an unexpected arylation reaction.
Konrad Kepski, Wesley James Moran
doaj +1 more source
Angewandte Chemie, EarlyView.Highly electrophilic N‐radical cations enable efficient and selective H‐atom transfer (HAT) of unprotected amines. In this exceedingly practical strategy, simple CuCl catalyzes an interrupted Hofmann–Löffler–Freytag (HLF) reaction to afford δ desaturated amines, aza‐heterocycles, and C─H aminated alkanes without protecting groups.
Pavitra Laohapaisan +6 more
wiley +2 more sources
Strain-Enabled S-Arylation and S-Alkenylation of Sulfinamides [PDF]
, 2023 Converting commercially available and affordable chiral sulfinamides to pharmaceutically important chiral sulfoximines via SIV-functionalization is synthetically appealing, however, remains little developed due to the competing N-functionalization ...
Binghe, Yang +7 more
core +2 more sources
Angewandte Chemie, EarlyView.Here we report two nonalternant polycyclic aromatic hydrocarbons (PAH) (1 and 2), which contain two and four consecutive pentagons, respectively. Under acidic conditions, 1 and 2 dimerize to afford the axially chiral dimers AC1 and AC2. The central azulene moiety in both 2 and AC2 shows an unusually short transannular bond of 1.366 Å.
Chang Wang +3 more
wiley +2 more sources
Chemistry, 2021 In this paper, a simple and clean process for the alkylation and arylation of nitrogen-containing heterocycles is reported. The reactions were conducted using the Q-tube® as a non-conventional technology, in water as a green solvent, at overboiling ...
Cecilia Scimmi +7 more
doaj +1 more source
Palladium-Catalyzed α-Arylation of Aryl Nitromethanes
Organic Letters, 2015 Catalytic conditions for the α-arylation of aryl nitromethanes have been discovered using parallel microscale experimentation, despite two prior reports of the lack of reactivity of these aryl nitromethane precursors. The method efficiently provides a variety of substituted, isolable diaryl nitromethanes.
VanGelder, Kelsey F. +1 more
openaire +2 more sources
Direct C-H:C-H Arylation Polymerization of 3,4-Propylenedioxythiophene Derivatives [PDF]
, 2021 In this manuscript, we report, for the first time, a direct C-H:C-H arylation process for the polymerization of 3,4-propylenedioxythiophene derivatives.
Nagaraj , Nayak +3 more
core +2 more sources
White‐Light‐Mediated Imidazole Catalysis Toward Terpene‐Based Thermosets
Angewandte Chemie, Volume 138, Issue 39, 21 September 2026.White‐light irradiation enables the photoinitiator‐free curing of fully bio‐based terpene epoxy–anhydride systems. A light‐induced switch in epoxide ring‐opening selectivity leads to colorless, transparent thermosets with enhanced thermomechanical performance, revealing an unexpected pathway for sustainable terpene‐based network formation.
Chenxi Zhang +3 more
wiley +2 more sources