Process for preparing diaryl methylphosphonate and derivatives thereof
AssigneeStauffer Chemical Company
InventorsMilton L. Honig, Edward D. Weil
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Abstract
A process is provided for the preparation of diaryl methylphosphonates through the reaction of triaryl phosphites with methanol in the presence of a catalytic quantity of methyl iodide. The reaction is conducted at a temperature of from about 170.degree. C. to about 250.degree. C. New and useful derivatives are produced by reaction of the diaryl methylphosphonates with polyols or amines.
Claims9
A process for preparing diaryl methylphosphonate which comprises reacting the corresponding triayl phosphite with methanol in the presence of a methyl iodide catalyst, said catalyst being employed in an amount of from about 0.5% to about 5% by weight based on the triaryl phosphite, at a temperature of from about 170.degree. C. to about 250.degree. C.
Dependencies are inferred from the claim text.