Process for epoxidation of olefinically-unsaturated compounds
AssigneeShell Oil Company
InventorAlbertus J. Mulder
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Abstract
The invention provides a process for epoxidizing an olefinic double bond in an olefinically-unsaturated compound by contact of a liquid phase mixture containing the olefinically-unsaturated compound, an aldehyde having at least two carbon atoms and a suitable solvent with molecular oxygen in the presence of a catalyst which is soluble in the reaction mixture and which comprises a praseodymium compound. The process has particularly advantageous application to oxidation of aldrin to dieldrin.
Claims27
A process for epoxidizing an olefinic double bond in an olefinically-unsaturated compound other than an .alpha.,.beta.-unsaturated carboxylic acid or a compound having a six-membered ring of carbon atoms wherein 3 or 4 of the ring atoms have sp.sup.2 hybrid orbitals, which comprises contacting a liquid phase mixture containing the olefinically-unsaturated compound, an aldehyde having at least two carbon atoms in a quantity of at least about one mol of said aldehyde per mol of olefinically-unsaturated compound, and a solvent with molecular oxygen in the presence of a catalyst which comprises a praseodymium compound in solution in the said liquid phase.
Dependencies are inferred from the claim text.