title: Dolichodial
text: # Dolichodial
  
  Dolichodial is a natural chemical compound with two aldehyde groups, which belongs to the group of iridoids.
  
  ## Chemistry
  
  It has in its five-membered ring three asymmetric carbon atoms and accordingly exists in four diastereomeric pairs of enantiomers. The pairs with a different stereochemistry of dolichodial are called anisomorphal and peruphasmal.
  
  * (1R,2S,5S)-(–)-Dolichodial (A)
  * (1S,2R,5R)-(+)-Dolichodial (A')
  * (1S,2S,5S)-(+)-Anisomorphal (B)
  * (1R,2R,5R)-(–)-Anisomorphal (B')
  * (1R,2S,5R)-Peruphasmal (C)
  * (1S,2R,5S)-Peruphasmal (C')
  * (1S,2S,5R)-Stereoisomer (D)
  * (1R,2R,5S)-Stereoisomer (D')
  
  ## Occurrence
  
  Dolichodial and its stereoisomers can be found in the essential oils of certain plants, and also in the defensive secretions of some insect species.
  
  