2010
DOI: 10.1021/ja910346m
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Pt-Catalyzed Tandem 1,2-Acyloxy Migration/Intramolecular [3 + 2] Cycloaddition of Enynyl Esters

Abstract: A platinum-catalyzed tandem reaction involving enynyl ester isomerization and subsequent intramolecular [3 + 2] cyclization has been developed. This strategy provides an efficient approach to five-, six-, or seven-membered cyclic polyfunctional compounds.

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Cited by 73 publications
(20 citation statements)
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“…Inspired by a platinum-catalyzed tandem acyloxy migration/cycloaddition reaction 25 , She and coworkers reported a highly efficient gold-catalyzed synthesis of polyfunctionalized piperidines from 1,7-enynes 7 (Scheme 4) 26 . 82% ee + SCHEME 3.…”
Section: 2-ester Migration Of Propargyl Esters Involving Intramolecmentioning
confidence: 99%
“…Inspired by a platinum-catalyzed tandem acyloxy migration/cycloaddition reaction 25 , She and coworkers reported a highly efficient gold-catalyzed synthesis of polyfunctionalized piperidines from 1,7-enynes 7 (Scheme 4) 26 . 82% ee + SCHEME 3.…”
Section: 2-ester Migration Of Propargyl Esters Involving Intramolecmentioning
confidence: 99%
“…[18] General reactivity of metal Zwitterion complexes towards dipolar addition with alkenes have been reported for other electrophilic metals, such as Pt II . [19] Shin and co-workers further designed substrates of nitrone-tethered tertiary propargyl alcohols. The introduction of the tertiary alcohol moiety enables the construction of new skeletons with quaternary centers by a series of cascade reactions.…”
Section: Oxygen-atom Transfer From Nitronesmentioning
confidence: 99%
“…Auf diese Weise sind durch die Cyclisierung von 15 die tricyclischen Grundgerüste der Heterocyclen 16 in guten bis sehr guten Ausbeuten und hoch diastereoselektiv zugänglich (Schema 7). [19] Shin et al nutzten weiterhin tertiäre Propargylalkohole mit Nitronsubstituenten als Substrate. Statt dessen führt eine selektive 6-exo-Cyclisierung zu den a-Oxocarbenoiden 17, die durch das Imin-Stickstoffatom intramolekular angegriffen werden.…”
Section: Sauerstoffübertragung Von Nitronenunclassified
“…[18] Dipolare Additionen metallhaltiger Zwitterionen an Alkene sind auch für andere elektrophile Metalle bekannt, zum Beispiel für Pt II . [19] Shin et al nutzten weiterhin tertiäre Propargylalkohole mit Nitronsubstituenten als Substrate. Der Einbau einer tertiären Alkoholfunktion ermöglicht Reaktionskaskaden, die zum Aufbau neuer Molekülgerüste mit quartären Zentren führen.…”
Section: Sauerstoffübertragung Von Nitronenunclassified