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- Thiourea_organocatalysis abstract "(Thio)urea organocatalysis describes the utilization of properly designed derivatives of urea and thiourea to accelerate and stereochemically alter organic transformations through predominantly double hydrogen-bonding interactions with the respective substrate(s) (non-covalent organocatalysis). The scope of these small-molecule H-bond donors termed (thio)urea organocatalysts covers both non-stereoselective and stereoselective applications in organic synthesis (asymmetric organocatalysis).In nature non-covalent interactions such as hydrogen bonding (\"partial protonation\") play a crucial role in enzyme catalysis that is characterized by selective substrate recognition (molecular recognition), substrate activation, and enormous acceleration and stereocontrol of organic transformations.Based on the pioneering examinations by Kelly, Etter, Jorgensen, Hine, Curran, Göbel, and De Mendoza (see review articles cited below) on hydrogen bonding interactions of small, metal-free compounds with electron-rich binding sites Schreiner and co-workers performed series of theoretical and experimental systematic investigations towards the hydrogen-bonding ability of various thiourea derivatives.These purely organic compounds were found to reveal significant rate enhancements of simple Diels-Alder reaction, act like weak Lewis acid catalysts, but operate through explicit double hydrogen bonding instead of covalent (strong) binding known from traditional metal-ion mediated catalysis and Brønsted acid catalysis.".
- Thiourea_organocatalysis thumbnail Wikipedia_jacobsen2_polymer_thiourea.png?width=300.
- Thiourea_organocatalysis wikiPageID "26400991".
- Thiourea_organocatalysis wikiPageLength "18582".
- Thiourea_organocatalysis wikiPageOutDegree "49".
- Thiourea_organocatalysis wikiPageRevisionID "704630006".
- Thiourea_organocatalysis wikiPageWikiLink 3,5-bis(trifluormethyl)phenyl_thiourea_is_to_date_the_most_effective_%5B%5BChirality_(chemistry).
- Thiourea_organocatalysis wikiPageWikiLink Adamantane.
- Thiourea_organocatalysis wikiPageWikiLink Aza-Henry_reaction.
- Thiourea_organocatalysis wikiPageWikiLink Baylis–Hillman_reaction.
- Thiourea_organocatalysis wikiPageWikiLink Beta-Nitrostyrene.
- Thiourea_organocatalysis wikiPageWikiLink Brønsted–Lowry_acid–base_theory.
- Thiourea_organocatalysis wikiPageWikiLink Carbonyl.
- Thiourea_organocatalysis wikiPageWikiLink Catalysis.
- Thiourea_organocatalysis wikiPageWikiLink Category:Catalysis.
- Thiourea_organocatalysis wikiPageWikiLink Category:Ureas.
- Thiourea_organocatalysis wikiPageWikiLink Cinchona.
- Thiourea_organocatalysis wikiPageWikiLink Cyclohexanone.
- Thiourea_organocatalysis wikiPageWikiLink Diels–Alder_reaction.
- Thiourea_organocatalysis wikiPageWikiLink Enantiomer.
- Thiourea_organocatalysis wikiPageWikiLink Enthalpy.
- Thiourea_organocatalysis wikiPageWikiLink Enzyme.
- Thiourea_organocatalysis wikiPageWikiLink Friedel–Crafts_reaction.
- Thiourea_organocatalysis wikiPageWikiLink Green_chemistry.
- Thiourea_organocatalysis wikiPageWikiLink Hydrogen_bond.
- Thiourea_organocatalysis wikiPageWikiLink Imine.
- Thiourea_organocatalysis wikiPageWikiLink Immobilization_on_a_solid_phase.
- Thiourea_organocatalysis wikiPageWikiLink Indole.
- Thiourea_organocatalysis wikiPageWikiLink Lewis_acids_and_bases.
- Thiourea_organocatalysis wikiPageWikiLink Malonate.
- Thiourea_organocatalysis wikiPageWikiLink Metal.
- Thiourea_organocatalysis wikiPageWikiLink Michael_reaction.
- Thiourea_organocatalysis wikiPageWikiLink Nitroaldol_reaction.
- Thiourea_organocatalysis wikiPageWikiLink Nitroalkene.
- Thiourea_organocatalysis wikiPageWikiLink Organic_synthesis.
- Thiourea_organocatalysis wikiPageWikiLink Organocatalysis.
- Thiourea_organocatalysis wikiPageWikiLink Petasis_reaction.
- Thiourea_organocatalysis wikiPageWikiLink Phenyl_group.
- Thiourea_organocatalysis wikiPageWikiLink Polar_effect.
- Thiourea_organocatalysis wikiPageWikiLink Protonation.
- Thiourea_organocatalysis wikiPageWikiLink Quinoline.
- Thiourea_organocatalysis wikiPageWikiLink Strecker_amino_acid_synthesis.
- Thiourea_organocatalysis wikiPageWikiLink Substituent.
- Thiourea_organocatalysis wikiPageWikiLink Thiourea.
- Thiourea_organocatalysis wikiPageWikiLink Time-of-frequency.
- Thiourea_organocatalysis wikiPageWikiLink Urea.
- Thiourea_organocatalysis wikiPageWikiLinkText "Thiourea organocatalysis".
- Thiourea_organocatalysis wikiPageWikiLinkText "amido-thiourea catalyzed".
- Thiourea_organocatalysis wikiPageWikiLinkText "thiourea organocatalysis".
- Thiourea_organocatalysis wikiPageUsesTemplate Template:Gallery.
- Thiourea_organocatalysis wikiPageUsesTemplate Template:Reflist.
- Thiourea_organocatalysis subject Category:Catalysis.
- Thiourea_organocatalysis subject Category:Ureas.
- Thiourea_organocatalysis type Amide.
- Thiourea_organocatalysis type Process.
- Thiourea_organocatalysis type Reaction.
- Thiourea_organocatalysis comment "(Thio)urea organocatalysis describes the utilization of properly designed derivatives of urea and thiourea to accelerate and stereochemically alter organic transformations through predominantly double hydrogen-bonding interactions with the respective substrate(s) (non-covalent organocatalysis).".
- Thiourea_organocatalysis label "Thiourea organocatalysis".
- Thiourea_organocatalysis sameAs Q7784712.
- Thiourea_organocatalysis sameAs m.0ds8dnl.
- Thiourea_organocatalysis sameAs Q7784712.
- Thiourea_organocatalysis wasDerivedFrom Thiourea_organocatalysis?oldid=704630006.
- Thiourea_organocatalysis depiction Wikipedia_jacobsen2_polymer_thiourea.png.
- Thiourea_organocatalysis isPrimaryTopicOf Thiourea_organocatalysis.