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- Juliá–Colonna_epoxidation abstract "The Juliá–Colonna epoxidation is an asymmetric poly-leucine catalyzed nucleophilic epoxidation of electron deficient olefins in a triphasic system. The reaction was reported by Sebastian Juliá (Instituto Químico de Sarriá, Barcelona, Spain) in 1980, with further elaboration by both Juliá and Stefano Colonna (Istituto di Chimica Industriale dell'Università, Milan, Italy).In the original triphasic protocol, the chalcone substrate is soluble in the organic phase, generally toluene or carbon tetrachloride. The alkaline hydrogen peroxide oxidant is soluble primarily in the aqueous phase, and the reaction occurs at the insoluble polymer layer at the interface of the two phases. Alternative biphasic and monophasic protocols have been developed with increased substrate accessibility and reaction rate.The efficient enantioselective catalytic epoxidation under mild conditions is of great synthetic utility. Not only are epoxides effective synthons for a range of transformations, they have a significant presence in natural products structures. Furthermore, the reaction has been effectively scaled up to industrially useful levels, with work conducted notably by Bayer and Evonik. Finally, the enzyme-like activity of the poly-amino acid segments is suggestive of a role of the reaction in the prebiotic origin of life.".
- Juliá–Colonna_epoxidation thumbnail Julia-Colonna_Epoxidation1.png?width=300.
- Juliá–Colonna_epoxidation wikiPageExternalLink 22November.shtm.
- Juliá–Colonna_epoxidation wikiPageID "29887314".
- Juliá–Colonna_epoxidation wikiPageLength "20503".
- Juliá–Colonna_epoxidation wikiPageOutDegree "60".
- Juliá–Colonna_epoxidation wikiPageRevisionID "678452874".
- Juliá–Colonna_epoxidation wikiPageWikiLink Abiogenesis.
- Juliá–Colonna_epoxidation wikiPageWikiLink Alanine.
- Juliá–Colonna_epoxidation wikiPageWikiLink Alkene.
- Juliá–Colonna_epoxidation wikiPageWikiLink Alpha_helix.
- Juliá–Colonna_epoxidation wikiPageWikiLink Asymmetric_nucleophilic_epoxidation.
- Juliá–Colonna_epoxidation wikiPageWikiLink Bayer.
- Juliá–Colonna_epoxidation wikiPageWikiLink Bernoulli_distribution.
- Juliá–Colonna_epoxidation wikiPageWikiLink Calcium_channel.
- Juliá–Colonna_epoxidation wikiPageWikiLink Carbon_tetrachloride.
- Juliá–Colonna_epoxidation wikiPageWikiLink Category:Name_reactions.
- Juliá–Colonna_epoxidation wikiPageWikiLink Chalcone.
- Juliá–Colonna_epoxidation wikiPageWikiLink Cyanide.
- Juliá–Colonna_epoxidation wikiPageWikiLink Cytotoxicity.
- Juliá–Colonna_epoxidation wikiPageWikiLink Diene.
- Juliá–Colonna_epoxidation wikiPageWikiLink Diltiazem.
- Juliá–Colonna_epoxidation wikiPageWikiLink Enantiomer.
- Juliá–Colonna_epoxidation wikiPageWikiLink Enol.
- Juliá–Colonna_epoxidation wikiPageWikiLink Enzyme_kinetics.
- Juliá–Colonna_epoxidation wikiPageWikiLink Epoxide.
- Juliá–Colonna_epoxidation wikiPageWikiLink Evonik_Industries.
- Juliá–Colonna_epoxidation wikiPageWikiLink Goniothalamus_giganteus.
- Juliá–Colonna_epoxidation wikiPageWikiLink Homogeneity_and_heterogeneity.
- Juliá–Colonna_epoxidation wikiPageWikiLink Hydrogen_bond.
- Juliá–Colonna_epoxidation wikiPageWikiLink Imidazole.
- Juliá–Colonna_epoxidation wikiPageWikiLink Jacobsen_epoxidation.
- Juliá–Colonna_epoxidation wikiPageWikiLink Ketone.
- Juliá–Colonna_epoxidation wikiPageWikiLink Leucine.
- Juliá–Colonna_epoxidation wikiPageWikiLink Liquid–liquid_extraction.
- Juliá–Colonna_epoxidation wikiPageWikiLink Membrane_reactor.
- Juliá–Colonna_epoxidation wikiPageWikiLink Multiphasic_liquid.
- Juliá–Colonna_epoxidation wikiPageWikiLink Organic_peroxide.
- Juliá–Colonna_epoxidation wikiPageWikiLink Oxyanion_hole.
- Juliá–Colonna_epoxidation wikiPageWikiLink Phase-transfer_catalyst.
- Juliá–Colonna_epoxidation wikiPageWikiLink Polyethylene_glycol.
- Juliá–Colonna_epoxidation wikiPageWikiLink Polymer.
- Juliá–Colonna_epoxidation wikiPageWikiLink Polystyrene.
- Juliá–Colonna_epoxidation wikiPageWikiLink Scalemic.
- Juliá–Colonna_epoxidation wikiPageWikiLink Sharpless_epoxidation.
- Juliá–Colonna_epoxidation wikiPageWikiLink Silicon_dioxide.
- Juliá–Colonna_epoxidation wikiPageWikiLink Sulfone.
- Juliá–Colonna_epoxidation wikiPageWikiLink Ternary_complex.
- Juliá–Colonna_epoxidation wikiPageWikiLink Tetra-n-butylammonium_bromide.
- Juliá–Colonna_epoxidation wikiPageWikiLink Tetrahydrofuran.
- Juliá–Colonna_epoxidation wikiPageWikiLink Toluene.
- Juliá–Colonna_epoxidation wikiPageWikiLink Urea.
- Juliá–Colonna_epoxidation wikiPageWikiLink Wikt:biphasic.
- Juliá–Colonna_epoxidation wikiPageWikiLink Wikt:monophasic.
- Juliá–Colonna_epoxidation wikiPageWikiLink File:Julia-Colonna_Epoxidation1.png.
- Juliá–Colonna_epoxidation wikiPageWikiLink File:Julia-Colonna_Epoxidation_Mechanism3.png.
- Juliá–Colonna_epoxidation wikiPageWikiLink File:Poly-leucine_Synthesis5.png.
- Juliá–Colonna_epoxidation wikiPageWikiLink File:Total_Synthesis_of_(+)-Clausenamide7.png.
- Juliá–Colonna_epoxidation wikiPageWikiLink File:Total_Synthesis_of_(+)-goniotriol.png.
- Juliá–Colonna_epoxidation wikiPageWikiLink File:Total_Synthesis_of_Diltiazem6.png.
- Juliá–Colonna_epoxidation wikiPageWikiLinkText "Juliá–Colonna epoxidation".
- Juliá–Colonna_epoxidation alt "Poly-leucine α-Helix Active Site Structure in the Juliá–Colonna Epoxidation".
- Juliá–Colonna_epoxidation alt "Ternary Complex Formation in the Juliá–Colonna Epoxidation".
- Juliá–Colonna_epoxidation caption "Figure 3: The Juliá–Colonna Epoxidation proceeds by random steady-state formation of a ternary complex prior to reaction to form the peroxide enolate intermediate and final epoxide product. Image adapted from Carrea et al.".
- Juliá–Colonna_epoxidation caption "Figure 4: Hydrogen bonding with the N-terminal residues stabilizes the peroxide enolate intermediate and orients the structure for ring closing with hydroxide displacement. The chalcone peroxide enolate is shown in green with hydrogen bonding interactions in red. The amino acid side-chains are omitted for clarity. Numbering refers to the amino group of each amino acid in the 7-mer, beginning at the N-terminus. Image inspired by Kelly et al.".
- Juliá–Colonna_epoxidation image "Julia-Colonna Active Site Structure1.png".
- Juliá–Colonna_epoxidation image "Julia-Colonna Epoxidation Ternary Complex3.png".
- Juliá–Colonna_epoxidation width "250".
- Juliá–Colonna_epoxidation wikiPageUsesTemplate Template:Clear.
- Juliá–Colonna_epoxidation wikiPageUsesTemplate Template:Multiple_image.
- Juliá–Colonna_epoxidation wikiPageUsesTemplate Template:Reflist.
- Juliá–Colonna_epoxidation subject Category:Name_reactions.
- Juliá–Colonna_epoxidation hypernym Epoxidation.
- Juliá–Colonna_epoxidation type Diacritic.
- Juliá–Colonna_epoxidation type Eponym.
- Juliá–Colonna_epoxidation type Page.
- Juliá–Colonna_epoxidation type Reaction.
- Juliá–Colonna_epoxidation type Redirect.
- Juliá–Colonna_epoxidation type Template.
- Juliá–Colonna_epoxidation comment "The Juliá–Colonna epoxidation is an asymmetric poly-leucine catalyzed nucleophilic epoxidation of electron deficient olefins in a triphasic system.".
- Juliá–Colonna_epoxidation label "Juliá–Colonna epoxidation".
- Juliá–Colonna_epoxidation sameAs Q6310335.
- Juliá–Colonna_epoxidation sameAs m.0fqptjr.
- Juliá–Colonna_epoxidation sameAs Q6310335.
- Juliá–Colonna_epoxidation sameAs 朱莉娅-科隆纳环氧化反应.
- Juliá–Colonna_epoxidation wasDerivedFrom Juliá–Colonna_epoxidation?oldid=678452874.
- Juliá–Colonna_epoxidation depiction Julia-Colonna_Epoxidation1.png.
- Juliá–Colonna_epoxidation isPrimaryTopicOf Juliá–Colonna_epoxidation.