2008
DOI: 10.1016/j.tet.2008.06.075
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The carbonyl ene reaction

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Cited by 176 publications
(86 citation statements)
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“…As an alternative avenue, the strategy (Scheme 3) based upon the intramolecular carbonyl-ene reaction [23] of 11 was undertaken. Preparation of the key precursor 11 is depicted in Scheme 3.…”
Section: Resultsmentioning
confidence: 99%
“…As an alternative avenue, the strategy (Scheme 3) based upon the intramolecular carbonyl-ene reaction [23] of 11 was undertaken. Preparation of the key precursor 11 is depicted in Scheme 3.…”
Section: Resultsmentioning
confidence: 99%
“…Allenamide cycloadditions with alkenes that are catalyzed by gold(I) [125,126] have added to the versatility of this methodology for the formation of cyclobutane compounds; these reactions presumably occur in a stepwise fashion involving initial activation of the allene by the gold(I) catalyst and subsequent attack by the alkene that, as shown in Scheme 27 [125], can achieve high enantiocontrol. The carbonyl-ene reaction is a versatile, atom-economical process for the construction of carbon-carbon bonds to generate homoallylic alcohols that has generated considerable interest as a result of asymmetric catalysis of this transformation [127]. Lewis acid coordination with the carbonyl component (the enophile) activates the system for this pericyclic reaction, but in asymmetric reactions this activation has been mainly limited to glyoxylate, glyoxal, and pyruvate derivatives.…”
Section: [2+2] Cycloaddition Reactionsmentioning
confidence: 99%
“…Para favorecer la formación de nopol se requieren temperaturas altas o catalizadores ácidos tipo Lewis. La reacción para producir el nopol en presencia de catalizadores también se puede considerar como una reacción eno entre un alqueno que contiene un hidrógeno alílico (β-pineno) que interacciona con un doble o triple enlace de un enófilo (HCHO) [49]. Desde el punto de vista ing.cienc., vol 8, n°16, julio-diciembre.…”
Section: Síntesis Del Nopolunclassified
“…Desde el punto de vista ing.cienc., vol 8, n°16, julio-diciembre. 2012. mecanístico la reacción térmica entre 100 y 200 ℃ procede de forma concertada a través de un estado de transición cíclico mientras que la reacción catalizada por ácido consiste de un mecanismo por etapas que involucra un carbocatión como intermediario [49,50].…”
Section: Síntesis Del Nopolunclassified