1984
DOI: 10.1021/jo00179a044
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2-Cyclopentenones from 1-ethynyl-2-propenyl acetates

Abstract: Ordering information is given on any current masthead page.(11) The CD curve of (-)-14 contains two Cotton effects, one is due to the enone-enone interaction and the other is due to the helicity of the twisted enone in the C ring, therefore the difference between curve b and curve a shows the real exciton-split CD curve of the enone-enone interaction.

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Cited by 243 publications
(158 citation statements)
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“…(2)]. Diese Rautenstrauch-Reaktion [224] eröffnet einen attraktiven Zugang zu Cyclopentenonen [225] und stellt damit eine Alternative zur klassischen Nazarov-Cyclisierung [226] oder Pauson-Khand-[2+2+1]-Cyclocarbonylierung dar. [227] Ersetzt man das Alken durch eine aromatische Einheit, so führt die Reaktion zu pentannulierten Produkten, die sich aus einer formalen C-HInsertion des postulierten Platin-Carben-Intermediats ergeben [Schema 42, Gl.…”
Section: A Fürstner Und P W Daviesunclassified
“…(2)]. Diese Rautenstrauch-Reaktion [224] eröffnet einen attraktiven Zugang zu Cyclopentenonen [225] und stellt damit eine Alternative zur klassischen Nazarov-Cyclisierung [226] oder Pauson-Khand-[2+2+1]-Cyclocarbonylierung dar. [227] Ersetzt man das Alken durch eine aromatische Einheit, so führt die Reaktion zu pentannulierten Produkten, die sich aus einer formalen C-HInsertion des postulierten Platin-Carben-Intermediats ergeben [Schema 42, Gl.…”
Section: A Fürstner Und P W Daviesunclassified
“…Reported in 1984, [52] the Rautenstrauch rearrangement provided an access to cyclopentenes starting with acyclic 1-ethynyl-2-propenyl acetates. The original reaction was catalyzed by Pd(II) complexes and was postulated to proceed via the intermediacy of Pd carbenes.…”
Section: Cycloisomerizations Of 14-enynesmentioning
confidence: 99%
“…Among them we can mention classical routes such as the base-catalyzed intramolecular aldol condensation of 1,4-dicarbonyl compounds, 1 the intramolecular Wittig-type reactions, 2 intramolecular 1,5-C-H insertions, 3 and the Nazarov 4 cyclization. Moreover, different transition metal-mediated approaches 5 such as the Pauson-Khand reaction, 6 and the Rautenstrauch rearrangement, 7 have become very popular for the synthesis of this type of compounds. We have recently shown that the 3,5-bis-(trifluoromethyl)phenyl (BTFP) group is a strong electron-withdrawing group, and that the corresponding BTFP sulfonyl group is an excellent nucleofuge in base-promoted β-elimination processes used in the stereoselective synthesis of Eaconitates by dialkylation under phase-transfer-catalyzed conditions followed by concomitant elimination 8 ( Figure 2).…”
Section: Introductionmentioning
confidence: 99%