What does transannulation mean?
Definitions for transannulation
transan·nu·la·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word transannulation.
Wiktionary
transannulationnoun
Any reaction in which one type of ring system (especially a heterocycle) is converted into a different one, normally via an acyclic intermediate
Wikipedia
transannulation
In organic chemistry annulation (from the Latin anellus for "little ring"; occasionally annelation) is a chemical reaction in which a new ring is constructed on a molecule. Examples 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:
Numerology
Chaldean Numerology
The numerical value of transannulation in Chaldean Numerology is: 8
Pythagorean Numerology
The numerical value of transannulation in Pythagorean Numerology is: 4
Translations for transannulation
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"transannulation." Definitions.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.definitions.net/definition/transannulation>.
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