Process for epoxidation of olefinically-unsaturated compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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549332, 549543, 549544, 549545, 549546, 546268, C07D30106

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047217987

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.

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D. Rothe et al., Journal f. prakt. Chemie, vol. 324(4), (1982), pp. 596-608.
R. A. Sheldon et al., Metal-Catalyzed Oxidations of Organic Compounds, Academic Press, (1981), pp. 25-28.
Cherches, Kh. A., CA 87:183929y.

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