2012
DOI: 10.1039/c2cc30371j
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Umpolung reactions in an ionic liquid catalyzed by electrogenerated N-heterocyclic carbenes. Synthesis of saturated esters from activated α,β-unsaturated aldehydes

Abstract: The umpolung reaction of α,β-unsaturated aldehydes to saturated esters has been carried out in an ionic liquid by organocatalysis of electrogenerated NHC. The roles of solvent, precatalyst and proton donor of the ionic liquid have been verified and good to high yields of esters have been obtained using a "green" and mild methodology.

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Cited by 44 publications
(38 citation statements)
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References 35 publications
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“…This organocatalytic strategy was successfully applied to many organic reactions, including for example the benzoin condensation, [31][32][33] esterification and amidation of benzaldehydes and cinnamaldehydes, [34][35][36][37][38][39][40][41] synthesis of γbutyrolactones, [42][43] synthesis of 1,3-diketones, [44] etc..…”
Section: Introductionmentioning
confidence: 99%
“…This organocatalytic strategy was successfully applied to many organic reactions, including for example the benzoin condensation, [31][32][33] esterification and amidation of benzaldehydes and cinnamaldehydes, [34][35][36][37][38][39][40][41] synthesis of γbutyrolactones, [42][43] synthesis of 1,3-diketones, [44] etc..…”
Section: Introductionmentioning
confidence: 99%
“…[25] Der erste präparative elektrochemische Ansatz wurde 1992 von Diederich et al vorgestellt. [28] Sie waren in der Lage,M ethylester aus aliphatischen und aromatischen Aldehyden zu generieren, wobei aromatische Substrate hçhere chemische Ausbeuten und Stromausbeuten in Methanol ergaben.…”
Section: Organokatalyse In Der Elektrosyntheseunclassified
“…Ionic liquids (ILs) have been considered as eco-friendly alternatives to volatile organic media because of their negligible vapor pressure and nonflammable nature [1,2]. Although IL was initially introduced as an alternative green reaction medium, today it has marched far beyond showing its significant role in controlling the reaction as a catalyst.…”
Section: Introductionmentioning
confidence: 99%