2005
DOI: 10.1016/j.jorganchem.2005.07.117
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Oxidative addition of aryl chlorides to palladium N-heterocyclic carbene complexes and their role in catalytic arylamination

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Cited by 55 publications
(36 citation statements)
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“…[53,137] In addition to the results from these investigations, the following mechanistic discussions will mostly rely on what is known for reactions mediated by Pd-phosphane complexes (especially with bulky, strongly s-electron-donating trialkylphosphanes). Comparisons of the catalytic activity of Pd-NHC catalysts produced either from well-defined complexes or in situ, and studies of well-defined Pd-NHC complexes related to proposed intermediates in the catalytic cycle are also given.…”
Section: The Catalytic Cycle Of the Pd-nhc-mediated Cross-coupling Rementioning
confidence: 99%
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“…[53,137] In addition to the results from these investigations, the following mechanistic discussions will mostly rely on what is known for reactions mediated by Pd-phosphane complexes (especially with bulky, strongly s-electron-donating trialkylphosphanes). Comparisons of the catalytic activity of Pd-NHC catalysts produced either from well-defined complexes or in situ, and studies of well-defined Pd-NHC complexes related to proposed intermediates in the catalytic cycle are also given.…”
Section: The Catalytic Cycle Of the Pd-nhc-mediated Cross-coupling Rementioning
confidence: 99%
“…Green et al conducted a detailed computational study on the Buchwald-Hartwig amination reaction of the Pd-ItBu catalyst (Figure 7). [137] ). Coordination of aniline to this complex results in tetracoordinate complexes of various configurations, from which the complex having aniline and ItBu in a trans arrangement was found to be the most stable.…”
Section: The Catalytic Cycle Of the Pd-nhc-mediated Cross-coupling Rementioning
confidence: 99%
“…[53,137] Die folgende Diskussion gründet daher auf Erfahrungen mit Reaktionen, die von Palladium-Phosphan-Komplexen (speziell mit sperrigen und stark s-elektronenschiebenden Trialkylphosphanen) katalysiert werden. Zusätzlich werden Vergleiche mit der katalytischen Aktivität von Pd-NHC-Katalysatoren angestellt, die entweder aus definierten Komplexen entstehen oder in situ erzeugt werden.…”
Section: Der Katalysezyklus Pd-nhc-vermittelter Kreuzkupplungenunclassified
“…Der Stellenwert der Buchwald-Hartwig-Aminierung lässt sich daran ablesen, dass sie die einzige Pd-NHC-katalysierte Kreuzkupplung ist, deren Katalysezyklus sorgfältig theoretisch untersucht [137] -und experimentell untermauert [144,146] [216] Die Imidazoliumsalze 9, 11, 13 (Tabelle 1), 330 und 331 (Schema 72) waren für diese Reaktion ausgezeichnet geeignet. Die Gruppen von Hartwig, [206,217] Nolan, [57,218] Caddick und Cloke, [219] Trudell [220] und Beller [110] haben dieses In-situ-Protokoll zur Arylaminierung angewendet (Schema 72).…”
Section: G Organ Et Alunclassified
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