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- Regioselectivity abstract "In chemistry, regioselectivity is the preference of one direction of chemical bond making or breaking of over all other possible directions. It can often apply to which of many possible positions a reagent will affect, such as which proton a strong base will abstract from an organic molecule, or where on a substituted benzene ring a further substituent will add.A specific example is a halohydrin formation reaction with 2-propenylbenzene:Regioselectivity In halohydrin formationBecause of the preference for the formation of one product over another, the reaction is selective. This reaction is regioselective because it selectively generates one constitutional isomer rather than the other.Certain examples of regioselectivity have been formulated as rules for certain classes of compounds under certain conditions, many of which are named. Among the first introduced to chemistry students are Markovnikov's rule for the addition of protic acids to alkenes, and the Fürst-Plattner rule for the addition of nucleophiles to derivatives of cyclohexene, especially epoxide derivatives.Regioselectivity in ring-closure reactions is subject to Baldwin's rules. If there are two or more orientations that can be generated during a reaction, one of them is dominant (e.g., Markovnikov/anti-Markovnikov addition across a double bond)Regioselectivity can also be applied to specific reactions such as addition to pi ligands.Selectivity also occurs in carbene insertions, for example in the Baeyer-Villiger reaction. In this reaction an oxygen is regioselectively inserted near an adjacent carbonyl group. In ketones this insertion is directed toward the carbon which is more highly substituted (i.e. according Markovnikov's rule). For example, in a study involving acetophenones this oxygen was preferentially inserted in-between the carbonyl and the aromatic ring to give acetyl aromatic esters, not methyl benzoates.".
- Regioselectivity thumbnail RegioselectivityInhalohydrinformation.svg?width=300.
- Regioselectivity wikiPageID "519950".
- Regioselectivity wikiPageLength "3391".
- Regioselectivity wikiPageOutDegree "36".
- Regioselectivity wikiPageRevisionID "696533327".
- Regioselectivity wikiPageWikiLink Acetophenone.
- Regioselectivity wikiPageWikiLink Acetyl.
- Regioselectivity wikiPageWikiLink Acid.
- Regioselectivity wikiPageWikiLink Alkene.
- Regioselectivity wikiPageWikiLink Alpha-Methylstyrene.
- Regioselectivity wikiPageWikiLink Aromaticity.
- Regioselectivity wikiPageWikiLink Baeyer–Villiger_oxidation.
- Regioselectivity wikiPageWikiLink Baldwins_rules.
- Regioselectivity wikiPageWikiLink Base_(chemistry).
- Regioselectivity wikiPageWikiLink Benzene.
- Regioselectivity wikiPageWikiLink Carbene.
- Regioselectivity wikiPageWikiLink Carbonyl.
- Regioselectivity wikiPageWikiLink Category:Stereochemistry.
- Regioselectivity wikiPageWikiLink Chemical_bond.
- Regioselectivity wikiPageWikiLink Chemistry.
- Regioselectivity wikiPageWikiLink Chemoselectivity.
- Regioselectivity wikiPageWikiLink Cryptoregiochemistry.
- Regioselectivity wikiPageWikiLink Cyclic_compound.
- Regioselectivity wikiPageWikiLink Cyclohexene.
- Regioselectivity wikiPageWikiLink Enantiomer.
- Regioselectivity wikiPageWikiLink Epoxide.
- Regioselectivity wikiPageWikiLink Ester.
- Regioselectivity wikiPageWikiLink Fürst-Plattner_Rule.
- Regioselectivity wikiPageWikiLink Green–Davies–Mingos_rules.
- Regioselectivity wikiPageWikiLink Halohydrin.
- Regioselectivity wikiPageWikiLink Insertion_reaction.
- Regioselectivity wikiPageWikiLink Ketone.
- Regioselectivity wikiPageWikiLink Markovnikovs_rule.
- Regioselectivity wikiPageWikiLink Methyl_benzoate.
- Regioselectivity wikiPageWikiLink Nucleophile.
- Regioselectivity wikiPageWikiLink Proton.
- Regioselectivity wikiPageWikiLink Stereoselectivity.
- Regioselectivity wikiPageWikiLink Structural_isomer.
- Regioselectivity wikiPageWikiLink Substituent.
- Regioselectivity wikiPageWikiLink Zaitsevs_rule.
- Regioselectivity wikiPageWikiLink File:RegioselectivityInhalohydrinformation.svg.
- Regioselectivity wikiPageWikiLinkText "Regioselectivity".
- Regioselectivity wikiPageWikiLinkText "Selective".
- Regioselectivity wikiPageWikiLinkText "regio-".
- Regioselectivity wikiPageWikiLinkText "regiochemistry".
- Regioselectivity wikiPageWikiLinkText "regioselective".
- Regioselectivity wikiPageWikiLinkText "regioselectively".
- Regioselectivity wikiPageWikiLinkText "regioselectivity".
- Regioselectivity wikiPageWikiLinkText "selective".
- Regioselectivity wikiPageWikiLinkText "selectivity".
- Regioselectivity wikiPageUsesTemplate Template:Organic_reactions.
- Regioselectivity wikiPageUsesTemplate Template:Reflist.
- Regioselectivity wikiPageUsesTemplate Template:Use_dmy_dates.
- Regioselectivity subject Category:Stereochemistry.
- Regioselectivity hypernym Preference.
- Regioselectivity comment "In chemistry, regioselectivity is the preference of one direction of chemical bond making or breaking of over all other possible directions.".
- Regioselectivity label "Regioselectivity".
- Regioselectivity sameAs Q2275927.
- Regioselectivity sameAs انتقائية_موضعية.
- Regioselectivity sameAs Regioselectivitat.
- Regioselectivity sameAs Regioselektivität.
- Regioselectivity sameAs Regioselectividad.
- Regioselectivity sameAs Regioselektiivsus.
- Regioselectivity sameAs Régiosélectivité.
- Regioselectivity sameAs רגיוסלקטיביות.
- Regioselectivity sameAs Regioselettività.
- Regioselectivity sameAs 位置選択性.
- Regioselectivity sameAs Regioselectiviteit.
- Regioselectivity sameAs Regiosseletividade.
- Regioselectivity sameAs m.02kyxk.
- Regioselectivity sameAs Региоселективность.
- Regioselectivity sameAs Regioselektivitet.
- Regioselectivity sameAs Q2275927.
- Regioselectivity sameAs 区域选择性.
- Regioselectivity wasDerivedFrom Regioselectivity?oldid=696533327.
- Regioselectivity depiction RegioselectivityInhalohydrinformation.svg.
- Regioselectivity isPrimaryTopicOf Regioselectivity.