Reactivity of 5‐(Alkynyl)dibenzothiophenium Salts: Synthesis of Diynes, Vinyl Sulfones, and Phenanthrenes
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DOI: 10.1002/ejoc.202100323
Abstract: Abstract The reactivity of 5‐(alkynyl)dibenzothiophenium salts 1 is explored in the presence of different nucleophiles, dienes, and under photochemical conditions. Reaction with lithium acetylides affords diynes in moderate yields; while depending on the substitution pattern,… read more here.
Keywords: dibenzothiophenium salts; reactivity alkynyl; alkynyl dibenzothiophenium; vinyl sulfones ... See more keywords
Photocatalyst-free visible light driven synthesis of (E)-vinyl sulfones from cinnamic acids and arylazo sulfones
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DOI: 10.1016/j.tetlet.2020.151898
Abstract: Abstract A photocatalyst-free visible light mediated decarboxylative sulfono functionalization protocol has been explored for the synthesis of (E)-vinyl sulfones from cinnamic acids and bench-stable arylazo sulfones. The latter have been utilized as sulfonyl radical precursors… read more here.
Keywords: synthesis vinyl; visible light; vinyl; free visible ... See more keywords
Visible-light-induced remote C(sp3)–H sulfonylvinylation: assembly of cyanoalkylated vinyl sulfones
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DOI: 10.1039/d1qo00732g
Abstract: A photoinduced three-component sulfonylvinylation reaction of propargyl alcohols, potassium metabisulfite and cycloketone oxime esters is developed, affording cyanoalkylated vinyl sulfones in moderate to good yields. read more here.
Keywords: light induced; visible light; induced remote; vinyl sulfones ... See more keywords
Atom- and step-economic 1,3-thiosulfonylation of activated allenes with thiosulfonates to access vinyl sulfones/sulfides.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d2cc01731h
Abstract: A new type of organocatalyzed 1,3-thiosulfonylation has been developed to straightforwardly access highly functionalized vinyl sulfones, which features mild conditions, atom- and step-economy, practicability, conciseness, and environmental friendliness. Moreover, these valuable products can be transformed… read more here.
Keywords: atom step; step economic; vinyl sulfones; thiosulfonylation ... See more keywords