Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Hydrogen_bond_catalysis> ?p ?o }
- Hydrogen_bond_catalysis abstract "Hydrogen bond catalysis is a type of organocatalysis that relies on use of hydrogen bonding interactions to accelerate and control organic reactions. In biological systems, hydrogen bonding plays a key role in many enzymatic reactions, both in orienting the substrate molecules and lowering barriers to reaction. However, chemists have only recently attempted to harness the power of using hydrogen bonds to perform catalysis, and the field is relatively undeveloped compared to research in Lewis acid catalysis.Catalytic amounts of hydrogen bond donors can promote reactions through a variety of different mechanisms. During the course of a reaction, hydrogen bonding can be used to stabilize anionic intermediates and transition states. Alternatively, some catalysts can bind small anions, enabling the formation of reactive electrophilic cations. More acidic donors can act as general or specific acids, which activate electrophiles by protonation. A powerful approach is the simultaneous activation of both partners in a reaction, e.g. nucleophile and electrophile, termed "bifunctional catalysis". In all cases, the close association of the catalyst molecule to substrate also makes hydrogen bond catalysis a powerful method of inducing enantioselectivity.Hydrogen bonding catalysts are often simple to make, relatively robust, and can be synthesized in high enantiomeric purity. New reactions catalyzed by hydrogen bond donors are being discovered at an increasing pace, including asymmetric variants of common organic reactions useful for synthesis, such as aldol additions, Diels-Alder cycloadditions and Mannich reactions.However, there are several challenges that must be overcome before hydrogen bond catalysis can achieve its full potential in terms of synthetic utility. Current known reactions are very substrate specific and generally exhibit low rate acceleration and turnover, thus requiring high catalyst loading. Catalysts are often discovered and optimized by trial and error, and chemists have a poor understanding of the relationship between catalyst structure and reactivity. Additionally, the field suffers from a lack of general mechanistic understanding, which has been greatly outpaced by the discovery of new reactions. With more detailed studies of structure and mechanism in the future, hydrogen bond catalysis has great potential for enabling new, efficient, selective reactions and promising applications in asymmetric synthesis.".
- Hydrogen_bond_catalysis thumbnail Michaeltakemoto.png?width=300.
- Hydrogen_bond_catalysis wikiPageExternalLink Zhenglai_1.pdf.
- Hydrogen_bond_catalysis wikiPageExternalLink 20070706-UKT-H-Bonding%20in%20Asymmetric%20Catalysis.pdf.
- Hydrogen_bond_catalysis wikiPageExternalLink AM_Hbondcatalysis.pdf.
- Hydrogen_bond_catalysis wikiPageExternalLink smnr_2009_Fuller_Peter.pdf.
- Hydrogen_bond_catalysis wikiPageID "37403337".
- Hydrogen_bond_catalysis wikiPageLength "33967".
- Hydrogen_bond_catalysis wikiPageOutDegree "74".
- Hydrogen_bond_catalysis wikiPageRevisionID "669617110".
- Hydrogen_bond_catalysis wikiPageWikiLink 1,1-Bi-2-naphthol.
- Hydrogen_bond_catalysis wikiPageWikiLink Acid.
- Hydrogen_bond_catalysis wikiPageWikiLink Active_site.
- Hydrogen_bond_catalysis wikiPageWikiLink Active_sites.
- Hydrogen_bond_catalysis wikiPageWikiLink Aldehyde.
- Hydrogen_bond_catalysis wikiPageWikiLink Aldehydes.
- Hydrogen_bond_catalysis wikiPageWikiLink Aldol.
- Hydrogen_bond_catalysis wikiPageWikiLink Allyl.
- Hydrogen_bond_catalysis wikiPageWikiLink Amide.
- Hydrogen_bond_catalysis wikiPageWikiLink Amides.
- Hydrogen_bond_catalysis wikiPageWikiLink Amidine.
- Hydrogen_bond_catalysis wikiPageWikiLink Amino_acid.
- Hydrogen_bond_catalysis wikiPageWikiLink Amino_acids.
- Hydrogen_bond_catalysis wikiPageWikiLink BINOL.
- Hydrogen_bond_catalysis wikiPageWikiLink Baylis–Hillman_reaction.
- Hydrogen_bond_catalysis wikiPageWikiLink Beta-Nitrostyrene.
- Hydrogen_bond_catalysis wikiPageWikiLink Boron_trichloride.
- Hydrogen_bond_catalysis wikiPageWikiLink Category:Catalysis.
- Hydrogen_bond_catalysis wikiPageWikiLink Category:Organic_chemistry.
- Hydrogen_bond_catalysis wikiPageWikiLink Chorismate_mutase.
- Hydrogen_bond_catalysis wikiPageWikiLink Claisen_rearrangement.
- Hydrogen_bond_catalysis wikiPageWikiLink Diels-Alder.
- Hydrogen_bond_catalysis wikiPageWikiLink Diels–Alder_reaction.
- Hydrogen_bond_catalysis wikiPageWikiLink Diol.
- Hydrogen_bond_catalysis wikiPageWikiLink Enantiomer.
- Hydrogen_bond_catalysis wikiPageWikiLink Enantioselectivity.
- Hydrogen_bond_catalysis wikiPageWikiLink Enzyme.
- Hydrogen_bond_catalysis wikiPageWikiLink Enzymes.
- Hydrogen_bond_catalysis wikiPageWikiLink Epoxide.
- Hydrogen_bond_catalysis wikiPageWikiLink Epoxides.
- Hydrogen_bond_catalysis wikiPageWikiLink Guanidine.
- Hydrogen_bond_catalysis wikiPageWikiLink Hydrogen_bond.
- Hydrogen_bond_catalysis wikiPageWikiLink Hydrogen_bonding.
- Hydrogen_bond_catalysis wikiPageWikiLink Hydrogen_cyanide.
- Hydrogen_bond_catalysis wikiPageWikiLink Imine.
- Hydrogen_bond_catalysis wikiPageWikiLink Imines.
- Hydrogen_bond_catalysis wikiPageWikiLink Lewis_acid_catalysis.
- Hydrogen_bond_catalysis wikiPageWikiLink Lewis_acids_and_bases.
- Hydrogen_bond_catalysis wikiPageWikiLink Lewis_bases.
- Hydrogen_bond_catalysis wikiPageWikiLink Mannich.
- Hydrogen_bond_catalysis wikiPageWikiLink Mannich_reaction.
- Hydrogen_bond_catalysis wikiPageWikiLink Morita-Baylis-Hillman_reaction.
- Hydrogen_bond_catalysis wikiPageWikiLink Nitroso.
- Hydrogen_bond_catalysis wikiPageWikiLink Organic_Reactions.
- Hydrogen_bond_catalysis wikiPageWikiLink Organic_reactions.
- Hydrogen_bond_catalysis wikiPageWikiLink Organocatalysis.
- Hydrogen_bond_catalysis wikiPageWikiLink Oxanion_hole.
- Hydrogen_bond_catalysis wikiPageWikiLink Oxidative_addition.
- Hydrogen_bond_catalysis wikiPageWikiLink Oxyanion_hole.
- Hydrogen_bond_catalysis wikiPageWikiLink Palladium-catalyzed_coupling_reactions.
- Hydrogen_bond_catalysis wikiPageWikiLink Phosphoric_acid.
- Hydrogen_bond_catalysis wikiPageWikiLink Pictet-Spengler.
- Hydrogen_bond_catalysis wikiPageWikiLink Pictet–Spengler_reaction.
- Hydrogen_bond_catalysis wikiPageWikiLink Reductive_elimination.
- Hydrogen_bond_catalysis wikiPageWikiLink Serine_protease.
- Hydrogen_bond_catalysis wikiPageWikiLink Serine_proteases.
- Hydrogen_bond_catalysis wikiPageWikiLink Strecker_amino_acid_synthesis.
- Hydrogen_bond_catalysis wikiPageWikiLink Strecker_reaction.
- Hydrogen_bond_catalysis wikiPageWikiLink Tert-leucine.
- Hydrogen_bond_catalysis wikiPageWikiLink Tetrahedral_carbonyl_addition_compound.
- Hydrogen_bond_catalysis wikiPageWikiLink Thiourea.
- Hydrogen_bond_catalysis wikiPageWikiLink Thiourea_organocatalysis.
- Hydrogen_bond_catalysis wikiPageWikiLink Thioureas.
- Hydrogen_bond_catalysis wikiPageWikiLink Transition_state.
- Hydrogen_bond_catalysis wikiPageWikiLink Ureas.
- Hydrogen_bond_catalysis wikiPageWikiLink Category:Organocatalysis.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Anionbinding.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:BINOL_catalysis.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Biphenol_catalyzed_aminolysis.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Cationpicatalysis.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Chorismate_rearrangement.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:DengMichael.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:EpibatidineTakemoto.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Guanidinium_claisen.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Hydrocyanation1.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Imine_SKA_addition.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Jacobsenyohimbine.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Michaeltakemoto.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Oligopeptide_catalyzed_aldol.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Oxocarbenium.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Privileged_donors.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Serine_protease_oxyanion_hole.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Streckersyn.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Substituenteff.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:TaddolHDA.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Teradamannich.png.
- Hydrogen_bond_catalysis wikiPageWikiLink File:Tetrahedral_stabilization.png.
- Hydrogen_bond_catalysis wikiPageWikiLinkText "Hydrogen bonding catalysts".
- Hydrogen_bond_catalysis hasPhotoCollection Hydrogen_bond_catalysis.
- Hydrogen_bond_catalysis wikiPageUsesTemplate Template:Reflist.