A series of 7 new symmetric tetrazinodi (heter0arenes) is obtained in a two-step synthesis by N-aminating heterocyclic compounds substituted with a leaving group and by treating the latter with an organic or inorganic base. The new compounds are characterized, and the postulated structures are confirmed by X-ray analysis of a representative example.
![Isoquinolino[1',2':3,4][1,2,4,5]tetrazino[6,1-a]isoquinoline结构式](https://image.chemsrc.com/caspic/316/226-65-3.png)
![dipyrido[1,2-d:1',2'-f][1,2,4,5]tetrazine结构式](https://image.chemsrc.com/caspic/010/881-64-1.png)
