Process for preparation of (halo)(hydroxy)-substituted phosphite

Chemistry of carbon compounds – Dipeptides – e.g. – aspartame – anserine – carnosine – etc.

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C07F 911, C07F 914

Patent

active

044964943

ABSTRACT:
Novel (halo)(hydroxy)-substituted phosphorus-containing acid derivatives are disclosed. Preferred compounds are 2-halo-3-hydroxypropyl ester derivatives of phosphorous and phosphoric acid formed by reaction of at least some amount of tertiary butyl glycidyl ether with a halogenated derivative of a phosphorus-containing acid followed by acid dealkylation of the product. The polyol products are useful in the production of polyurethane articles such as foams having increased resistance to the effects of fire.

REFERENCES:
patent: 3014951 (1961-12-01), Birum
patent: 3132169 (1964-05-01), Birum et al.
patent: 3192242 (1965-06-01), Birum
patent: 3939227 (1976-02-01), Altscher et al.
patent: 4298709 (1981-11-01), Ginter et al.
McOmie, "Protective Groups in Organic Chemistry", (1973), pp. 96-97.

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