Cyclic phosphonic monoesters and their preparation

Details Cyclic phosphonic monoesters and their preparation Cyclic phosphonic monoesters and their preparation

1987-08-25

1989-05-02

Howard, Jacqueline V.

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

Organic compounds

Phosphorus esters

524117, 252609, C07F 938

Patent

active

048270105

ABSTRACT:
A process for preparing cyclic phosphonic monoesters comprising subjecting aryloxyphosphines of defined formulae to flash pyrolysis, is provided. The aryloxyphosphines are those having the general formula ##STR1## where Ar is aryl and R is a hydrocarbyl radical capable of forming unsaturated hydrocarbon on severance of the C--O linkages.

REFERENCES:
patent: 4317769 (1982-03-01), Saito et al.
patent: 4439564 (1984-03-01), Chasar
Cadogan et al.; "Thermally Induced Gas Phase Phosphonylation of Arenes via Intramolecular Trapping of an Aryl Metaphosphate Moiety"; J. Chem. Soc. Chem. Commun.; 1986, (23), 1685-6, (Eng.).

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