2009
DOI: 10.1021/ol902497k
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Palladium-Catalyzed Aryl C−H Bonds Activation/Acetoxylation Utilizing a Bidentate System

Abstract: A palladium-catalyzed aryl C-H bonds activation/acetoxylation reaction utilizing a bidentate system has been explored. This transformation has been applied to a wide array of pyridine and 8-aminoquinoline derivatives and it exhibits excellent functional group tolerance.

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Cited by 179 publications
(62 citation statements)
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“…According to the authors, bidentate coordination allows for the formation of only two five‐membered palladacycles – 103 / 104 – as intermediates that would form rapidly for substrates with high electron density (Scheme ). Attempted extension of this reaction to functionalize unactivated C(sp 3 )–H proved unsuccessful …”
Section: Intermolecular Acyloxylationmentioning
confidence: 99%
“…According to the authors, bidentate coordination allows for the formation of only two five‐membered palladacycles – 103 / 104 – as intermediates that would form rapidly for substrates with high electron density (Scheme ). Attempted extension of this reaction to functionalize unactivated C(sp 3 )–H proved unsuccessful …”
Section: Intermolecular Acyloxylationmentioning
confidence: 99%
“…Reactions generally proceed in good yields (Scheme 11). 13 ortho-Silylation and germanylation have been accomplished using 8-aminoquinoline amides bearing β-sp 2 C-H bonds. Using disilanes and digermanes in fair to good yields of the silylated or germanylated products could be obtained and broad functional group tolerance was observed (Scheme 12).…”
Section: Formation Of C-x Bondsmentioning
confidence: 99%
“…[18] Ein ähnliches Protokoll wurde auch von Liang et al genutzt (Schema 27), um die palladiumkatalysierte Acetoxylierung von C(sp 2 )-H-Bindungen von Arylsubstraten unter Verwendung von 8-Aminochinolin oder einem Picolinamid als zweizähnige dirigierende Gruppe durchzuführen. [34] Mit Substraten ohne ortho-Substituenten führte die Reaktion zu difunktionalisierten Acetoxyverbindungen, wenn zwei ¾qui-valente Oxidationsmittel unter harschen Reaktionsbedingungen eingesetzt wurden.…”
Section: Bildung Von Kohlenstoff-sauerstoff-bindungenunclassified