Results 31 to 40 of about 4,438 (202)
Lead halide perovskites for photocatalytic organic synthesis
Nature Communications, 2019 While photoredox catalysis provides organic chemistry new avenues for chemical reactions, typical photocatalysts require expensive noble metals and show modest stabilities.
Xiaolin Zhu +5 more
doaj +1 more source
Angewandte Chemie, EarlyView.A reactivity programmed cascade between carbyne equivalents and allylic benzoates was developed that sequentially orchestrates all three reactivity modes of carbyne equivalents, enabling the rapid installation of three σ‐bonds at a single carbon center and providing efficient, scalable access to structurally diverse spirocyclic ethers. ABSTRACT Carbyne
Jianke Su +5 more
wiley +2 more sources
Aryl and Alkyl Radiotrifluoromethylation via Metallaphotoredox‐Mediated Radical Cross‐Coupling
Angewandte Chemie, EarlyView.The metallaphotoredox‐mediated radiotrifluoromethylation of arenes and alkanes is described. The operationally simple protocols make use of substrates bearing thianthrenium salts (TT) or N‐hydroxyphthalimide (NHPI) esters and CF218FI. The reaction proceeds through a Ru‐mediated radical formation followed by a Cu‐mediated radical cross‐coupling step and
Lukas Veth +2 more
wiley +2 more sources
Angewandte Chemie, EarlyView.This minireview highlights recent advances in catalyst development and mechanistic strategies that enable photochemical and photocatalytic reactivity under 700–1000 nm NIR light, emphasizing how long‐wavelength excitation expands opportunities in both synthetic chemistry and biology.
Santosh K. Pagire +3 more
wiley +2 more sources
Thioetherification via Photoredox/Nickel Dual Catalysis [PDF]
Organic Letters, 2016 Hypervalent alkylsilicates represent new and readily accessible precursors for the generation of alkyl radicals under photoredox conditions. Alkyl radicals generated from such silicates serve as effective hydrogen atom abstractors from thiols, furnishing thiyl radicals.
Jouffroy, Matthieu +2 more
openaire +2 more sources
Angewandte Chemie, EarlyView.Photocatalytic cross‐coupling: A redox‐neutral photochemical method enables direct C(sp2)─C(sp2) bond formation between phenols and heteroaryl halides using an organic dye and base. Complementary radical generation allows efficient cross‐coupling in up to 91% yield. Mechanistic studies, DFT, HTE, and machine learning rationalize and predict reactivity,
Matthew C. Carson +4 more
wiley +2 more sources
Photo-induced oxidant-free oxidative C–H/N–H cross-coupling between arenes and azoles
Nature Communications, 2017 Functionalization of unactivated C–H bonds is an attractive strategy to introduce functionality without the need for pre-functionalized starting materials.
Linbin Niu +5 more
doaj +1 more source
Nature Communications, 2023 The stereoselective synthesis of 1,3-dienes represents a challenge in organic synthesis. Here, the authors report a ligand-controlled stereodivergent access to both Z- and E-sulfonyl-1,3-dienes via photoredox and nickel catalysis.
Tianyu Long +6 more
doaj +1 more source
Recent Advances in Visible-Light-Mediated Amide Synthesis
Molecules, 2022 Visible-light photoredox catalysis has attracted tremendous interest within the synthetic community. As such, the activation mode potentially provides a more sustainable and efficient platform for the activation of organic molecules, enabling the ...
Bin Lu, Wen-Jing Xiao, Jia-Rong Chen
doaj +1 more source
Angewandte Chemie, EarlyView.A NiH‐catalyzed α‐alkenylation via Markovnikov hydronickellation of alkynes enables convenient access to α‐chrial β‐methylene carbonyl frameworks that are prevalent in biorelevant molecules. High regio‐ and enantioselectivities have been achieved with excellent functional group tolerance and applicability toward complex structures. The β‐methylene unit
Hyeontaek Nam +3 more
wiley +2 more sources