1992
DOI: 10.1002/ange.19921040306
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Alkinyl‐ und Alkenyl(phenyl)iodoniumverbindungen

Abstract: Verbindungen rnit hochkoordinierten, mehrwertigen Hauptgruppenelementen sind eine interessante Alternative zu den vielen wohlbekannten Ubergangsmetallkomplexen. Zu den altesten und am besten bekannten stabilen organischen Verbindungen dieser Art zahlen die Iod(n1)-Verbindungen. Diaryliodoniumverbindungen Ar,IX zum Beispiel sind schon seit uber hundert Jahren bekdnnt und spielen eine wichtige Rolle in der Lithographie. Alkine und Alkene gehoren ebenfalls zu den altesten, wichtigsten und niitzlichsten Verbindung… Show more

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Cited by 25 publications
(6 citation statements)
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“…Analogous synthesis of phenyl(phenylethynyl)iodonium trifluoroacetate (Scheme ) proved to be much more amenable to successful isolation of the desired product, irrespective of the acetylenic substrate, demonstrating a facile route to this class of materials, which have previously been reported as being unstable and hygroscopic 1b,26…”
Section: Resultsmentioning
confidence: 96%
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“…Analogous synthesis of phenyl(phenylethynyl)iodonium trifluoroacetate (Scheme ) proved to be much more amenable to successful isolation of the desired product, irrespective of the acetylenic substrate, demonstrating a facile route to this class of materials, which have previously been reported as being unstable and hygroscopic 1b,26…”
Section: Resultsmentioning
confidence: 96%
“…Two main possibilities were considered for the identity of the by‐product: (a) the vinyltrifluoroacetate2–3 arising from the Michael addition of the counterion and subsequent protonation of the iodonium ylide and (b) decomposition of the ylide to form an alkylidene carbene followed by hydration of the resultant alkyne (Scheme ) 2. Because α‐vinylic protons in iodonium salts are generally observed at δ = 6.8–7.8 ppm,1b possibility (b) was deemed to be more likely. Following a literature procedure,26 an isolated sample of 8 was produced, confirming its identity.…”
Section: Resultsmentioning
confidence: 99%
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“…[ 16c] Goodman et al [15c,d] used this reaction, which was first described by Loudon et al [15a,b] for the construction of "retro-inverso" peptides. These compounds are isosteric peptide analogues in which a peptide bond is inverted , which rear-retention of configuration at the migrating Crange to isocyanates (40).…”
Section: %mentioning
confidence: 99%