Phenylphosphonic acid derivative and production process therefor

Details Phenylphosphonic acid derivative and production process therefor Phenylphosphonic acid derivative and production process therefor

1998-01-15

1999-03-09

Ambrose, Michael G.

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

Organic compounds

Phosphorus esters

558125, 562 24, C07F 940, C07F 938

Patent

active

058803092

ABSTRACT:
A dialkyl dialkoxycarbonylphenylphosphonate which is useful as a resin modifier, a process for producing the same in high yield at a low cost, and a process for producing a dicarboxyphenylphosphonic acid in high yield at a low cost are described.
The process for producing a dialkyl dialkoxycarbonylphenylphosphonate comprises heating and reacting a dialkoxycarbonylphenyl halide with a trialkyl phosphate in the presence of a catalyst comprising an element of group VIII of the periodic table (such as an alumina supported palladium catalyst) and hydrolyzing the obtained dialkyl dialkoxycarbonylphenylphosphonate in the presence of an acid or base to produce a dicarboxyphenylphosphonic acid.

REFERENCES:
patent: 2834804 (1958-05-01), Lecher et al.
patent: 5498784 (1996-03-01), Arnold et al.
T. Shima et al., "Poly(ethylene terephthalate) Composite Fiber", Chemical Abstracts, pp. 74, vol. 72, No. 15, (1970).
B.C.M. Dorset, "Fiber-manufacturing Developments Assist Dryers and Finishers", Chemical Abstracts, vol. 65, No. 8 (1966).
The Journal of Organic Chemistry, vol. 35, No. 5, May 1970, p. 1691.
Chem. Ber. vol. 103, 1970, p. 2428.
Chemical Reviews, 1981, vol. 81, No. 4, p. 415.

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