Technique for preparing hexabromocyclophosphazene trimer
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEBEI UNIVERSITY
- Publication Date
- 2008-09-17
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a new process for preparing fine chemical intermediates, in particular to a new process for preparing hexabromocyclotrimeric phosphazene, which belongs to the field of chemical synthesis. Background technique
[0002] Phosphazene compounds are a class of linear or cyclic compounds whose skeletons are alternately arranged with phosphorus atoms and nitrogen atoms. Cyclic phosphazene compounds are a class of polycyclic ring compounds with alternating P and N atoms as the skeleton. It is an important chemical intermediate, and its structural formula is (NPR 2 )n, n=3-9, representative compounds are hexachlorocyclotrimeric phosphazene and hexabromocyclotrimeric phosphazene. Polyphosphazene compounds mainly refer to linear low-molecular or linear high polymers whose main chain is composed of alternating P and N atoms and alternating single and double bonds. The diversification of the side groups of phosphazene compounds endows the ...