Oxidative cleavage, degradation from carbonyl compounds

More powerful oxidants are almost always needed. Those commonly used for cleavage of olefins — and for other degradations — include nitric acid, hydrogen peroxide, permanganate, chromic acid, very concentrated alkali hydroxides, and in particular ozone. The products to be expected from oxidative fission of an ethylenic carbon-carbon double bond are carbonyl compounds — an aldehyde or a ketone or both according as the doubly bonded carbon atoms do or do not carry a hydrogen atom — but it often happens that 1,2-glycols are obtained as intermediates. 

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