Process for the manufacture of oxygenates

Details Process for the manufacture of oxygenates Process for the manufacture of oxygenates

C - Chemistry, Metallurgy

07

C

C07C 47/19 (2006.01) C07C 41/54 (2006.01) C07C 43/315 (2006.01) C07C 45/51 (2006.01) C07C 49/17 (2006.01) C07C 51/235 (2006.01) C07C 59/08 (2006.01)

Patent

CA 2252546

.alpha.-Hydroxycarbonyl compounds are obtained from aldehydes or ketones by forming an acetal or ketal which is decomposed to a vinyl ether. The ether is selectively oxidized under conditions yielding an .alpha.-hydroxy-aldehyde or - ketone with the carbonyl group protected. The last-mentioned compounds are valuable sources for other functional organic molecules, for example lactic acid.

Composés .alpha.-hydroxycarbonyle obtenus à partir d'aldéhydes ou de cétones, par formation d'un acétal ou cétal qui est décomposé en éther de vinyle. L'éther est sélectivement oxydé dans des conditions produisant un .alpha.-hydroxy-aldéhyde ou une .alpha.-hydroxy-cétone, le groupe carbonyle étant protégé. Les composés précédemment mentionnés sont des sources précieuses d'autres molécules organiques fonctionnelles, par exemple l'acide lactique.

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