منابع مشابه
Studies in Vitamin A 22 . OPPENAUER OXIDATION OF VITAMIN
The merit of the Oppenauer oxidation (Oppenauer, 1937; reviewed by Djerassi, 1951) using aluminium alkoxides and a hydrogen acceptor, is that unsaturated alcohols can be converted to aldehydes and ketones without affecting the ethylenic linkages. Applied to vitamin A alcohol it ought to yield retinene, (vitamin A1 aldehyde) as the primary product. Hawkins & Hunter (1944a), using aluminium isopr...
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Vesicles formed in water by synthetic macro-amphiphiles have attracted much attention as nanocontainers having properties that extend the physical and chemical limits of liposomes. We sought to develop ABA block copolymeric amphiphiles that self-assemble into unilamellar vesicles that can be further oxidatively destabilized. We selected poly(ethylene glycol) (PEG) as the hydrophilic A blocks, o...
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Crude cell-free preparations of Botrytis cinerea were found to oxidize straight-chain primary alcohols (except methanol), aromatic primary alcohols, and unsaturated primary alcohols. The resulting products were the corresponding aldehydes and an equal molar quantity of hydrogen peroxide.
متن کاملTandem nucleophilic addition-Oppenauer oxidation of aromatic aldehydes to aryl ketones with triorganoaluminium reagents.
In the presence of pinacolone, the in situ prepared triorganoaluminium reagents reacted with aromatic aldehydes to give ketones in moderate to high yield. We propose that the products are formed via a tandem organoaluminium reagents addition-Oppenauer oxidation sequence.
متن کاملProperties of catalase. Catalysis of coupled oxidation of alcohols.
e.g. uricase and d-amino-acid oxidase and their respective substrates, in other words systems which react directly with molecular 02 and reduce it to H202. The increased 02 uptake was shown to be due to the secondary oxidation of ethanol to acetaldehyde by H202 formed in the primary oxidation reaction. It was a matter for some surprise to find that this secondary oxidation of ethanol took place...
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ژورنال
عنوان ژورنال: Journal of Polymer Science
سال: 1962
ISSN: 0022-3832,1542-6238
DOI: 10.1002/pol.1962.1206016926