Results 61 to 70 of about 8,315 (196)
Recent developments in photoredox-catalyzed remote ortho and para C–H bond functionalizations
Beilstein Journal of Organic Chemistry, 2020 In recent years, the research area of direct C–H bond functionalizations was growing exponentially not only due to the ubiquity of inert C–H bonds in diverse organic compounds, including bioactive natural and nonnatural products, but also due to its ...
Rafia Siddiqui, Rashid Ali
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Photoredox-Catalyzed Phosphonocarboxylation of Allenes with Phosphine Oxides and CO2 [PDF]
, 2023 Phosphonocarboxylation of allenes with diarylphosphine oxides and CO2 via visible-light photoredox catalysis was developed for the first time. This work provided practical and sustainable access to highly valuable but otherwise difficult-to-access linear
Jia-Hao Zeng (6030554) +9 more
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Excited Organic Radicals in Photoredox Catalysis. [PDF]
JACS AuMany important synthetic-oriented works have proposed excited organic radicals as photoactive species, yet mechanistic studies raised doubts about whether they can truly function as photocatalysts. This skepticism originates from the formation of (photo)redox-active degradation products and the picosecond decay of electronically excited radicals, which
Pfund B, Wenger OS.
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Nature Communications, 2021 Hydrogen atom transfer (HAT) hydrogenation of alkenes usually requires stoichiometric silanes and peroxides. Here, the authors report a silane- and peroxide-free HAT hydrogenation method using a combined cobalt/photoredox catalysis and vitamin C as a ...
Yuji Kamei +6 more
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Multiphoton photoredox catalysis enables selective hydrodefluorinations [PDF]
Late-stage modification of complex molecules via site-selective hydrodefluorination is a challenging endeavor. The selective activation of carbon-fluorine (C–F) bonds in the presence of multiple C–F bonds is of importance in organic synthesis and drug ...
Murugesan, Kathiravan +5 more
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Nature Communications, 2022 Sulfonyl fluorides are compounds with potential application in chemical biology and drug discovery, but their preparation can be challenging. Here, the authors present a type of bench-stable fluorosulfonyl radical reagents that enable radical ...
Peng Wang +4 more
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Enantioselective radical chemistry: a bright future ahead
Beilstein Journal of Organic ChemistryThis perspective is focused on enantioselective free radical reactions. It describes several important catalytic asymmetric strategies applied to enantioselective radical reactions, including chiral Lewis acid catalysis, organocatalysis, photoredox ...
Anna C. Renner +3 more
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Nature Communications, 2022 The development of new methodologies for the construction of C(sp 3)–heteroatom bonds under mild conditions is desirable. Here the authors report the formation of C(sp 3)–heteroatom bonds via ring opening of arylcyclopropanes enabled by photoredox ...
Liang Ge +8 more
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Targeted photoredox catalysis in cancer cells [PDF]
Nature Chemistry, 2019 Hypoxic tumours are a major problem for cancer photodynamic therapy. Here, we show that photoredox catalysis can provide an oxygen-independent mechanism of action to combat this problem. We have designed a highly oxidative Ir(III) photocatalyst, [Ir(ttpy)(pq)CI]PF6 ([1]PF6, where 'ttpy' represents 4'-(p-tolyl)-2,2':6',2 ''-terpyridine and 'pq ...
Huang, Huaiyi +12 more
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Photosynthesis of Au8Cu6 nanocluster for photocatalysis in oxidative functionalization of alkynes
Nature CommunicationsLigand-protected metal nanoclusters provide an ideal platform for investigating photoredox catalysis. The central challenge is balancing their stability and catalytic activity.
Yan Zhao +9 more
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