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European journal of organic chemistry, 2024-07, Vol.27 (27), p.n/a
2024
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Details

Autor(en) / Beteiligte
Titel
Selective Oxidation of Sufur‐Containing Flavones: Synthesis of Sulfoxide/Sulfone‐Flavonoids
Ist Teil von
  • European journal of organic chemistry, 2024-07, Vol.27 (27), p.n/a
Ort / Verlag
Weinheim: Wiley Subscription Services, Inc
Erscheinungsjahr
2024
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • A transition‐metal‐free protocol is proposed for the selective oxidation of flavones, providing various sulfoxide/sulfone‐flavonoids in excellent yields. This strategy features excellent selectivities, high yields and broad substrate scope. The combination of oxone (2KHSO5 ⋅ KHSO 4⋅ K2SO4) as the sole oxidant and NaHCO3/Na2CO3 as the buffer play an important role in the process, in which the amounts of oxone and reaction temperatures are the key to the outstanding selectivities and high efficiency of the reaction. It should be noteworthy that a class of novel sulfone‐flavonols is also synthesized through triple oxidation. Moreover, the glycosylation of sulfone‐flavonols has been realized. We present a transition‐metal‐free protocol for the selective oxidation of flavones, providing various sulfoxide/sulfone‐flavonoids in excellent yields. This strategy features excellent selectivities, high yields and broad substrate scope. It should be noteworthy that a class of novel sulfone‐flavonols is also synthesized through triple oxidation. Moreover, the glycosylation of sulfone‐flavonols has been realized.
Sprache
Englisch
Identifikatoren
ISSN: 1434-193X
eISSN: 1099-0690
DOI: 10.1002/ejoc.202400359
Titel-ID: cdi_proquest_journals_3083195346

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