Cycloalkane epoxides produced by air oxidation of cycloalkenes

Details Cycloalkane epoxides produced by air oxidation of cycloalkenes Cycloalkane epoxides produced by air oxidation of cycloalkenes

1982-09-23

1984-09-04

Milestone, Norma S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549533, C07D30106

Patent

active

044698801

ABSTRACT:
A process for the production of cycloalkane epoxides from cycloalkenes in the presence of a boron-containing catalyst, oxygen and a carboxylate ion source via air oxidation is described. Alkali metal borates, alkali earth metal borates, rare earth borates and transition metal borates are useful catalysts. The boron catalyst may contain many different cations including lithium, sodium, strontium, barium, cerium, zirconium, vanadium, niobium, iron, cobalt, nickel, copper, zinc, and mixtures thereof. The reaction is conducted at a temperature in the range of 50.degree. to 150.degree. C. and a pressure of one atmosphere or greater. Cycloalkane epoxides are useful in the preparation of resins, plasticizers, etc.

REFERENCES:
patent: 4256650 (1981-03-01), Bljumberg et al.
Chemical Abstracts, vol. 70 (1969) 86803u.
Chemical Abstracts, vol. 78 (1973) 110665p.
Kobayashi, Y., "Stereoselective Boron Promoted Epoxidation of 1,5,9-Cyclododecatrienes," Tetrahedron Letters, No. 50, pp. 5093-5096 (1972).

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