Aromaticity Error

  • Checker searches for General, Basic, or Loose aromatic systems that can't be dearomatized or rearomatizing with the given method does not reproduce the initial molecule. For more please visit: Details on aromaticity detection.

  • Fixers

    • rearomatizing (rearomatize);

    • dearomatizing the aromatic system (dearomatize)

Example :

Aromaticity Error checker (aromaticity)

Warning:

Fix

Rearomatize (rearomatize)

Dearomatize (dearomatize)

General

images/docs.chemaxon.com/plugins/servlet/confluence/placeholder/unknown-attachment.gif
ex_arom_ch

images/download/attachments/1803790/no.png
no

images/download/attachments/1803790/no.png
no

images/download/attachments/1803790/ex_arom_chb2.png
ex_arom_ch

images/download/attachments/1803790/no.png
no

images/download/attachments/1803790/no.png
no

Basic

images/download/attachments/1803790/ex_arom_ch.png
ex_arom_ch

images/download/attachments/1803790/ex_arom_f.png
ex_arom_f

images/download/attachments/1803790/ex_arom_f.png
ex_arom_f

images/download/attachments/1803790/ex_arom_chb2.png
ex_arom_ch

images/download/attachments/1803790/no.png
no

images/download/attachments/1803790/no.png
no

Loose

images/download/attachments/1803790/ex_arom_ch.png
ex_arom_ch

images/download/attachments/1803790/ex_arom_f.png
ex_arom_f

images/download/attachments/1803790/ex_arom_f.png
ex_arom_f

images/download/attachments/1803790/ex_arom_chl.png
ex_arom_ch

images/download/attachments/1803790/ex_arom_flrea.png
ex_arom_f

images/download/attachments/1803790/ex_arom_fldea.png
ex_arom_f

The 2-pyridone aromatized in general mode is corrected after a checking of aromatization in basic mode.
In this case, both rearomatization and dearomatization fix yields the same structure.