Process for the preparation of tertiary phosphine oxides

Details Process for the preparation of tertiary phosphine oxides Process for the preparation of tertiary phosphine oxides

C - Chemistry, Metallurgy

07

F

260/613.5

C07F 9/53 (2006.01)

Patent

CA 1247134

Abstract of the Disclosure: Tertiary phosphine oxides are prepared by oxidation of tertiary phosphine sulfides using H2O2 in a solvent com- prising about 2 - 20% by weight of optionally halogenated lower aliphatic carboxylic acids and the remainder of mono- or polyhydric aliphatic or cycloaliphatic alcohols - if appropriate in mixtures with other inert solvents which are miscible with the carboxylic acid/alcohol mixture. Preferred solvents comprise acetic acicl/methanol and acetic acid/ethanol mixtures. The reaction products are final products and intermediates products in various specialized fields such as, for ex- ample, the plant protection sector and the polymers sector.

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