Prepn process of cyclic phosphonate compound
A technology for cyclic phosphonates and compounds, which is applied in the field of preparation of cyclic phosphonate compounds, can solve the problems of oxide organic phosphoric acid impurities, increase production costs, uneven heating of materials, etc., achieves fast reaction speed and simplifies processes Difficulty, good product quality
Inactive Publication Date: 2007-12-19
SHENYANG RES INST OF CHEM IND
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The present invention discloses preparation process of cyclic phosphonate compound. The preparation process includes intramolecular dewatering and ring closing reaction of substituted or un-substituted 2-hydroxybiphenyl-2-hypophosphorous acid in polar protic solvent. The preparation process of the present invention has fast reaction, short production period, simplified reaction, high product quality and other advantages.
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Protic solventHypophosphorous acid +4
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Property | Measurement | Unit |
Melting point | 118.0 ~ 119.0 | °C |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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