论文信息 - 6′,6′‐Dichloro‐3,3′′‐etheno‐3,4,3′′,4′′‐tetrahydro‐2H‐1,3‐benzoxazine‐2‐spiro‐2′‐(2λ5,4λ5,6λ5‐cyclotriphosphazene)‐4′‐spiro‐2′′‐2H‐1,3‐benzoxazine

6′,6′‐Dichloro‐3,3′′‐etheno‐3,4,3′′,4′′‐tetrahydro‐2H‐1,3‐benzoxazine‐2‐spiro‐2′‐(2λ5,4λ5,6λ5‐cyclotriphosphazene)‐4′‐spiro‐2′′‐2H‐1,3‐benzoxazine

The title compound, C16H16Cl2N5O2P3, a cyclotriphosphazene, has a spiro–ansa–spiro architecture in which the bicyclic system is in the sofa conformation. Two P atoms and one N atom are capable of representing stereogenic centres.

[1] Louis J. Farrugia,et al. WinGX suite for small-molecule single-crystal crystallography , 1999 .

[2] Louis J. Farrugia,et al. ORTEP-3 for Windows - a version of ORTEP-III with a Graphical User Interface (GUI) , 1997 .

[3] H. Allcock,et al. Synthesis and structure of small-molecule cyclic phosphazenes bearing ortho-substituted aryloxy and phenoxy substituents , 1992 .

[4] D. Cremer,et al. General definition of ring puckering coordinates , 1975 .

[5] D. Mathew,et al. Phosphazene–triazine cyclomatrix network polymers: some aspects of synthesis, thermal‐ and flame‐retardant characteristics , 2000 .

6′,6′‐Di­chloro‐3,3′′‐etheno‐3,4,3′′,4′′‐tetra­hydro‐2H‐1,3‐benzoxazine‐2‐spiro‐2′‐(2λ5,4λ5,6λ5‐cyclo­triphosphazene)‐4′‐spiro‐2′′‐2H‐1,3‐benzoxazine

6′,6′‐Dichloro‐3,3′′‐etheno‐3,4,3′′,4′′‐tetrahydro‐2H‐1,3‐benzoxazine‐2‐spiro‐2′‐(2λ5,4λ5,6λ5‐cyclotriphosphazene)‐4′‐spiro‐2′′‐2H‐1,3‐benzoxazine