Oxidative Studies of Vicinal Diols, α-Hydroxyketones and α-Diketones Using Solid-Supported Potassium Permanganate on Silica Gel
نویسندگان
چکیده
منابع مشابه
Albumin-directed stereoselective reduction of 1,3-diketones and β-hydroxyketones to anti diols.
The reduction of 1,3-diketones and β-hydroxyketones with NaBH(4) in aqueous acetonitrile is highly stereoselective in the presence of stoichiometric amounts of bovine or human albumin, giving anti 1,3-diols with d.e. up to 96%. The same reaction, without albumin, gives syn and anti 1,3-diols in approximately 1:1 ratio. The presence of an aromatic carbonyl group is essential for diastereoselecti...
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α-Hydroxy ketones are valuable synthons in organic chemistry. Here we show that oxidation of vic-diols to α-hydroxy ketones with H2O2 can be achieved with an in situ prepared catalyst based on manganese salts and pyridine-2-carboxylic acid. Furthermore the same catalyst is effective in alkene epoxidation, and it is shown that alkene oxidation with the MnII catalyst and H2O2 followed by Lewis ac...
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ژورنال
عنوان ژورنال: Journal Of The Brazilian Chemical Society
سال: 1994
ISSN: 0103-5053
DOI: 10.5935/0103-5053.19940011