" /> annulation - CISMeF





Preferred Label : annulation;

IUPAC definition : A transformation involving fusion of a new ring to a molecule via two new bonds. Some authors use the term 'annelation' for the fusion of an additional ring to an already existing one, and 'annulation' for the formation of a ring from one or several acyclic precursors, but this distinction is not made generally.;

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A transformation involving fusion of a new ring to a molecule via two new bonds. Some authors use the term 'annelation' for the fusion of an additional ring to an already existing one, and 'annulation' for the formation of a ring from one or several acyclic precursors, but this distinction is not made generally.

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07/05/2025


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