The cyclotriphosphazene and its relative derivatives are a class of compounds which with phosphorus-nitrogen single and double bonds as a basic skeleton and different functional side groups,with the advancement and development of technology. It is widely used in all areas of our life,such as flame retardant,biomedical,optical materials,ect.In this paper,hexachlorocyclot-riphos-phazene (HCCP)and o-aminophenol as starting materials,triethylamine as acid-binding agent,tetrahydrofuran as a sol-vent,the one-pot method,after nuclepphilic substitution reaction to synthesize a novel compound cyclotrip...