Peroxygen compounds
AssigneeLaporte Chemicals Limited
InventorsRobert C. P. Cubbon, John E. Braid, Alfred E. Oates, Ronald Preston
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Abstract
The invention relates to novel ketone peroxides compositions containing them and processes for producing the peroxides and the compositions. The ketone peroxides are those with an alkoxy or hydroxy substituent in the .alpha.,.beta.- or .gamma.-position. The compositions contain (1) the peroxides and (2) water which may be in admixture with a hydrophobic or hydrophilic solvent or (3) a hydrophobic solvent. The peroxides are produced by reacting the .alpha.,.beta.- or .gamma.-alkoxy or hydroxy ketone with aqueous hydrogen peroxide and a source of hydrogen ions, for example a mineral acid.
Claims22
A process for the preparation of a straight or branched chain ketone hydroperoxide of 4 to 6 carbon atoms substituted by alkoxy of 1 to 4 carbon atoms or hydroxy in the position .alpha., .beta. or .gamma. to the ketone peroxide which consists essentially of treating at a temperature not exceeding 35.degree. C. the corresponding ketone with aqueous hydrogen peroxide and a source of hydrogen ions providing 0.0001 to 1.75 gram atoms of hydrogen ion per gram mole of ketone.
A process for preparing a peroxide composition, which comprises reacting diacetone alcohol with an aqueous solution of hydrogen peroxide wherein the molar ratio of the ketone alcohol to the hydrogen peroxide is equal to at least about 1:2, at a temperature in the range from about 10.degree.-30.degree. C., in the presence of a source of hydrogen ion providing 0.1 to 50 milligram equivalents of hydrogen ion per mol of diacetone alcohol, and subsequently reducing the residual acidity of the reaction mixture.
Dependencies are inferred from the claim text.