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- Q529093 subject Q7400695.
- Q529093 abstract "Annulation (derived from annular, occasionally annelation) in organic chemistry is a chemical reaction in which a new ring is constructed on another molecule (often another ring).Annulation: A intramolecular ring closing B transannulation C cycloadditionExamples are the Robinson annulation, Danheiser annulation and certain cycloadditions. Annular molecules are constructed from side-on condensed cyclic segments, for example helicenes and acenes. In transannulation a bicyclic molecule is created by intramolecular carbon-carbon bond formation in a large monocyclic ring. An example is the samarium(II) iodide induced ketone - alkene cyclization of 5-methylenecyclooctanone which proceeds through a ketyl intermediate:Ketone olefin cyclization↑ ↑".
- Q529093 thumbnail AnnulationStrategies.png?width=300.
- Q529093 wikiPageWikiLink Q1057963.
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- Q529093 wikiPageWikiLink Q170409.
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- Q529093 wikiPageWikiLink Q66194.
- Q529093 wikiPageWikiLink Q7400695.
- Q529093 wikiPageWikiLink Q760735.
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- Q529093 wikiPageWikiLink Q81406.
- Q529093 wikiPageWikiLink Q898648.
- Q529093 wikiPageWikiLink Q900863.
- Q529093 wikiPageWikiLink Q901562.
- Q529093 type Thing.
- Q529093 comment "Annulation (derived from annular, occasionally annelation) in organic chemistry is a chemical reaction in which a new ring is constructed on another molecule (often another ring).Annulation: A intramolecular ring closing B transannulation C cycloadditionExamples are the Robinson annulation, Danheiser annulation and certain cycloadditions. Annular molecules are constructed from side-on condensed cyclic segments, for example helicenes and acenes.".
- Q529093 label "Annulation".
- Q529093 differentFrom Q701040.
- Q529093 depiction AnnulationStrategies.png.