1,3-dipole

Source: Wikipedia, the free encyclopedia.




From top to bottom,
azides, nitrones, and
nitro compounds are
examples of 1,3-dipoles.

In

1,3-dipolar cycloadditions.[1][2]

The dipole has at least one

resonance structure with positive and negative charges having a 1,3 relationship which can generally be denoted as +a−b−c−, where a may be a carbon, oxygen or nitrogen, b may be nitrogen or oxygen, and c may be a carbon, oxygen or nitrogen.[3]

A demonstration that how some well known 1,3-dipoles like ozone, nitro compounds and azides can be shown to have a resonance structure having 1,3 relationship between positive and negative formal charges

Known 1,3-dipoles are:

Carbonyl oxide

References

  1. ISBN 978-0-387-44897-8
    .
  2. ^ IUPAC Gold Book dipolar compounds
  3. ISBN 978-1906574161
    .
  4. ^ https://www.organic-chemistry.org/namedreactions/ozonolysis-criegee-mechanism.shtm Ozonolysis mechanism on Organic Chemistry Portal site
  5. doi:10.1007/3-540-30031-7_77
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