e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Open chain nitrogen compounds. Part XI. 3, 7-Bis (arylazo)-1, 3, 5, 7-tetraazabicyclo [3, 3, 1] nonanes: the reaction of diazonium ions with ammonia-formaldehyde …
…, K Vaughan, DL Hooper
Index: Singer, Robert D.; Vaughan, Keith; Hooper, Donald L. Canadian Journal of Chemistry, 1986 , vol. 64, p. 1567 - 1572
Reaction of a series of diazonium salts with either hexamine or an aqueous mixture of ammonia-formaldehyde affords 3, 7-bis (arylazo)-1, 3, 5, 7-tetraazabicyclo [3, 3, 1] nonanes; several new examples of this novel class of bicycloheterocycle have been prepared and characterized. Analysis of the low-temperature nmr spectra of one compound in this series shows that the bicyclic system prefers the chair-chair conformation. The bis (arylazo) ...
![3,7-bis(p-ethoxycarbonylphenylazo)-1,3,5,7-tetraazabicyclo[3,3,1]nonane Structure](https://image.chemsrc.com/caspic/424/105949-68-6.png)
![Benzoic acid,4-[(3-oxobutyl)amino]-, ethyl ester Structure](https://image.chemsrc.com/caspic/067/4788-79-8.png)
![(4-chlorophenyl)-[3-[(4-chlorophenyl)diazenyl]-1,3,5,7-tetrazabicyclo[3.3.1]nonan-7-yl]diazene Structure](https://image.chemsrc.com/caspic/038/105949-65-3.png)