Diazine

Not to be confused with Diazene.

Diazines are a group of organic compounds having the molecular formula C₄H₄N₂. Each contains a benzene ring in which two of the C-H fragments have been replaced by isolobal nitrogen. There are three isomers:

• pyridazine (1,2-diazine)
• pyrimidine (1,3-diazine)
• pyrazine (1,4-diazine)

See also

• 6-membered rings with one nitrogen atom: pyridines
• 6-membered rings with three nitrogen atoms: triazines
• 6-membered rings with four nitrogen atoms: tetrazines
• 6-membered rings with five nitrogen atoms: pentazines
• 6-membered rings with six nitrogen atoms: hexazines