Abstract The synthesis of 1, 3, 5, 7-triazaphosphocine and 1, 3, 7-triaza-5-phosphabicyclo [3.3. 1] nonane derivatives via nitration, nitrosation and acetylation of 1, 3, 5-triaza-7- phosphaadamantane and its 7-oxide is reported. A comparison of the reactions of the triazaphosphaadamantane with the analogous reactions of hexamine is made.
![3,7-Diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane Structure](https://image.chemsrc.com/caspic/066/63249-99-0.png)
![1,3,5-Triaza-7-phosphatricyclo[3.3.1.13,7]decane, 7-oxide Structure](https://image.chemsrc.com/caspic/069/53597-70-9.png)
![1-(3-acetyl-5-oxo-1,3,7-triaza-5λ5-phosphabicyclo[3.3.1]nonan-7-yl)ethanone Structure](https://image.chemsrc.com/caspic/324/63250-00-0.png)