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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.