Phosphate-containing and phosphonate-containing phosphate esters

Details Phosphate-containing and phosphonate-containing phosphate esters Phosphate-containing and phosphonate-containing phosphate esters

1990-10-31

1992-05-26

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

558164, 558165, C07F 909, C07F 911, C07F 912, C07F 940

Patent

active

051170337

ABSTRACT:
There are disclosed multiphosphorus-containing compounds comprising phosphonate-containing or phosphate-containing phosphate esters. The compounds can be prepared by: (a) reacting a phosphonate-containing or phosphate-containing alcohol with phosphorus pentoxide following by reaction with an epoxide, (b) reacting a phosphonate-containing or phosphate-containing alcohol with a phosphorus oxyhalide, hydrolyzing any phosphorus halogen bonds and then reacting with the resulting phosphoric acid derivative with an epoxide, (c) transesterifying a phosphonate-containing or phosphate-containing alcohol with a dialkyl phosphite, oxidizing the resulting compound to yield a phosphoric acid derivative and reacting the phosphoric acid derivative with an epoxide. The compounds are useful as flame retardant additives for polyurethanes and textiles.

REFERENCES:
Chemical Abstracts 95, 63246s (1981).
Kosolapoff, G. M., Organophosphorus Compounds, John Wiley and Sons, 1950, pp. 220-222.

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