Lemieux-Johnson, olefin cleavage

MALAPRAOE LEMIEUX JOHNSON Olefin (dfoO cleavage Oxidative cleavage of 1,2-glycols to two cart nyls (Malaprade) or direct oxidation o( olefins IO4 and OSO4 catalyst (Lenveux Johnson)... [Pg.240]

This reaction was first reported by Lemieux and Johnson in 1956. It is a conversion of an olefin into two individual aldehydes by means of an oxidative cleavage of a carbon-carbon double bond with osmium tetraoxide-sodium periodate. Therefore, it is known as the Lemieux-Johnson oxidative cleavage, Lemieux-Johnson reaction, or simply Lemieux-Johnson oxidation." In addition, the combination of osmium tetraoxide and sodium periodate is referred to as Lemieux-Johnson reagent. It should be pointed out that a lactol may be obtained directly from the oxidation of the olefin with a hydroxyl group near the oleflnic bond." ... [Pg.1734]

Lemieux-Johnson oxidative cleavage of olefins to aldehydes Additive oxidation... [Pg.299]

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