Production of aromatic phosphites
AssigneeRhodia Consumer Specialties Limited
InventorJustin Mark Cowan
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Abstract
A method for the production of an aromatic phosphite by reacting an aromatic hydroxy-compound with a phosphorus trihalide in the presence of a tertiary amine and a non-protic solvent, said solvent being mobile below −20° C. Suitable tertiary amines include tri-propyl amines, tri-butyl amines, tri-n-propylamine, tri-iso-propylamine, tri-n-butylamine, tri-iso-butylamine and tri-t-butylamine.
Claims9
In a method for the production of an aromatic phosphite by reacting an aromatic hydroxy-compound with a phosphorus trihalide in the presence of a tertiary amine and a non-protic solvent, said solvent being mobile below −20° C., the improvement comprising the use, as said tertiary amine, of a tertiary amine selected from the group consisting of tri-propyl amines and tri-butyl amines.
Dependencies are inferred from the claim text.