Journal Article10.1021/ACS.JOC.9B00552
Electron Donor–Acceptor Complex Enabled Decarboxylative Sulfonylation of Cinnamic Acids under Visible-Light Irradiation
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TL;DR: Visible-light-induced decarboxylative sulfonylation of cinnamic acids with aryl sulfonate phenol esters enabled by the electron donor-acceptor complex is developed.
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Abstract: Visible-light-induced decarboxylative sulfonylation of cinnamic acids with aryl sulfonate phenol esters enabled by the electron donor-acceptor complex is developed. The method offers a mild and green approach for the synthesis of vinyl sulfones with excellent functional group compatibility under photocatalyst and oxidant-free conditions.
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Citations
Visible-light-induced three-component reaction of quinoxalin-2(1H)-ones, alkenes and CF3SO2Na leading to 3-trifluoroalkylated quinoxalin-2(1H)-ones
TL;DR: In this article, a facile and metal-free visible-light-enabled three-component reaction of quinoxalin-2(1H)-ones, alkenes and CF3SO2Na has been developed under air at room temperature.
143
Visible-light-initiated 4CzIPN catalyzed multi-component tandem reactions to assemble sulfonated quinoxalin-2(1H)-ones
TL;DR: In this article, a mild and efficient photochemical multi-component tandem reaction of quinoxalin-2(1H)-ones, alkenes and sulfinic acids is reported.
124
Visible-light-promoted acridine red catalyzed aerobic oxidative decarboxylative acylation of α-oxo-carboxylic acids with quinoxalin-2(1H)-ones
TL;DR: Various 3-acyl quinoxalin-2(1H)-ones could be efficiently obtained in good yields with excellent functional group compatibility.
117
BI-OAc-Accelerated C3–H Alkylation of Quinoxalin-2(1H)‑ones under Visible-Light Irradiation
TL;DR: An efficient, photoredox-catalyst-free radical alkylation of quinoxalin-2(1H)-ones has been described and the synthetic value of the protocol was demonstrated by the successful functionalization of natural products and drug-based complex molecules.
116
Visible-light-induced intramolecular charge transfer in the radical spirocyclisation of indole-tethered ynones.
Hon Eong Ho,Angela Pagano,James A. Rossi-Ashton,James R. Donald,Ryan G. Epton,Jonathan C. Churchill,Michael J. James,Peter O'Brien,Richard J. K. Taylor,William P. Unsworth +9 more
TL;DR: Indole-tethered ynones form an intramolecular electron donor–acceptor complex that can undergo visible-light-induced charge transfer to promote thiyl radical generation from thiols and initiates a novel radical chain sequence based on dearomatising spirocyclisation with concomitant C–S bond formation.
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