2002
DOI: 10.1021/ol025836g
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Catalytic Pauson−Khand-Type Reaction Using Aldehydes as a CO Source

Abstract: [reaction: see text]. Rhodium complex-catalyzed carbonylative alkene-alkyne coupling proceeds using aldehydes as a CO source. Cinnamaldehyde is the best CO donor, and various cyclopentenones were provided in high isolated yields by a solvent-free system.

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Cited by 147 publications
(45 citation statements)
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“…At the time of this important discovery of CO generation from 20a, various CO surrogates were known, including formic acid, [48][49][50] paraformaldehyde, 50) N,N-dimethylformamide (DMF), 51) chloroform, 52) aldehydes, [53][54][55][56] metal carbonyl complexes, 57) acid chlorides, 58) and silacarboxylic acids. 59) Alkyl formates 60) had been also reported to act as CO surrogates.…”
Section: Discovery Of Phenyl Formate As a Co Surrogatementioning
confidence: 99%
“…At the time of this important discovery of CO generation from 20a, various CO surrogates were known, including formic acid, [48][49][50] paraformaldehyde, 50) N,N-dimethylformamide (DMF), 51) chloroform, 52) aldehydes, [53][54][55][56] metal carbonyl complexes, 57) acid chlorides, 58) and silacarboxylic acids. 59) Alkyl formates 60) had been also reported to act as CO surrogates.…”
Section: Discovery Of Phenyl Formate As a Co Surrogatementioning
confidence: 99%
“…[23,24] Wir beschrieben, dass die Reaktion von Eninen mit Aldehyden in Gegenwart katalytischer Mengen eines Rhodiumkomplexes für Pauson-Khand-Reaktionen genutzt werden kann und bicyclische Cyclopentenone liefert. [23] Aromatische, a,b-ungesättigte und aliphatische Aldehyde können als CO-Quelle eingesetzt werden, und sowohl Iridium-als auch Rutheniumkomplexe sind katalytisch aktiv.…”
Section: Aldehydeunclassified
“…[20a] Angewandte [21] In weiteren Arbeiten wurde Zimtaldehyd in Gegenwart von [RhCl(dppp) 2 ] oder [{RhCl(cod)} 2 ]/tol-binap (1:2) als CO-Quelle beschrieben (tol-binap = (À)-2,2'-Bis(dip-tolylphosphanyl)-1,1'-binaphthyl). [22] Bei den Umsetzungen mit Arylacetylenen wurden ee-Werte von bis zu 81 % erreicht. Ein Nachteil der Verwendung von Aldehyden ist die geringe Atomökonomie der Reaktion.…”
Section: Introductionunclassified